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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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2 conditions added

Common on this vehicle:Warning lightGauge or instrument faultLeakCorrosion or rustNoiseLoss of engine power, no accelerationMisfire or rough idleDoes not start

Record by record

161 records state a cause or a remedy. Each record is shown as short labels in the order fault → finding the cause → correction. Press a label to narrow to the records that state it.

Symptom

Component named as the cause

Work done

How it is said to have ended

  • result not stated1

A ribbon is as wide as the records that state both of its ends (only the commonest are drawn). A record that names several symptoms or components runs through each. Orange is records that say the fault came back or was not fixed. Results come from owners’ reports only; one that does not say is “result not stated”. None of this is a likelihood of a cause or a rate at which work succeeds.

Read the records one by one (21)

Known issuesDRLs or auto headlamps will not disable with the headlamp switch (Canada, RPO Z49; normal)1

  1. Manufacturer communication2003–2006 GMC YUKON ・ 2019-06-10

    Daytime Running Lamps Will Not Shut Off in Canada-Built Vehicles

    1. 1Fault

      • Some customers may state that the Daytime Running Lamps (DRLs) or the auto headlamps will not shut off when using the daytime running lamp disable switch, which is part of the headlamp switch.

    2. 2Finding the cause

      Possible causes

      • Vehicles built for Canada (RPO Z49) have different software that does not allow the DRLs or auto headlamps to be shut off.
      • Canadian law prohibits disabling daytime running lamps (DRLs) or auto headlamps.

    3. 3Correction

      Caution

      • This is a normal operation of the vehicle and no repairs should be attempted.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The model table lists the GMC Yukon, model years 2003 - 2019.
    • Condition：Some customers may state that the Daytime Running Lamps (DRLs) or the auto headlamps will not shut off when using the daytime running lamp disable switch, which is part of the headlamp switch.
    • Cause：Vehicles built for Canada (RPO Z49) have different software that does not allow the DRLs or auto headlamps to be shut off.
    • Cause：Canadian law prohibits disabling daytime running lamps (DRLs) or auto headlamps.
    • Caution：This is a normal operation of the vehicle and no repairs should be attempted.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This Preliminary Information communicates to technicians that the Daytime Running Lamps (DRL's) or the auto headlamps will not shut off when using the daytime running lamp disable switch (Which is part of the headlamp switch), if the vehicles was built for Canada (RPO Z49).   These vehicles were built with different software that doesn't allow the DRL's or Auto headlamp to be shut off. Canada law prohibits disabling daytime running lamps (DRL's) or auto headlamps.

Known issuesSome OnStar features no longer work (2G cellular sunset; the module is not broken)1

  1. Manufacturer communication2003–2006 GMC YUKON DENALI ・ 2025-04-28(1 earlier editions of this document folded here)

    OnStar Module 2G Sunset Information

    1. 1Fault

      • Customers may comment on a notification and/or that some 2G OnStar module features are no longer operable.
      • One of the listed concerns is being unable to contact the OnStar Call Center.
      • All other functions within the OnStar module are unaffected, such as OnStar remote link, Bluetooth, microphone, and GPS.

    2. 2Finding the cause

      Possible causes

      • On December 31, 2022, the 2G cellular signal will no longer be active, causing some OnStar module features to be inoperable.
      • The 2G CDMA cellular network was decommissioned across Canada in 2015.

      Steps to confirm (in the document’s order)

      • Any other function in the Telematics Communication Interface Control Module (other than OnStar) is to be diagnosed as directed by SI.

    3. 3Correction

      Repair

      • The OnStar guardian app is being used as a replacement for the OnStar portion of the module.

      Caution

      • Do not replace the OnStar module because of the 2G shutdown.
      • If the vehicle is brought in for inactive/broken/inoperable OnStar features, do not replace the module; the module is not broken.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to GMC Yukon models, model years 2003 to 2014.
    • Applies to：The involved region is North America.
    • Condition：Customers may comment on a notification and/or that some 2G OnStar module features are no longer operable.
    • Condition：One of the listed concerns is being unable to contact the OnStar Call Center.
    • Condition：All other functions within the OnStar module are unaffected, such as OnStar remote link, Bluetooth, microphone, and GPS.
    • Cause：On December 31, 2022, the 2G cellular signal will no longer be active, causing some OnStar module features to be inoperable.
    • Caution：Do not replace the OnStar module because of the 2G shutdown.
    • Caution：If the vehicle is brought in for inactive/broken/inoperable OnStar features, do not replace the module; the module is not broken.
    • Repair：The OnStar guardian app is being used as a replacement for the OnStar portion of the module.
    • Confirm：Any other function in the Telematics Communication Interface Control Module (other than OnStar) is to be diagnosed as directed by SI.
    • Cause：The 2G CDMA cellular network was decommissioned across Canada in 2015.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.

Known issuesAir bag (SIR) lamp on with DTC B1001 after BCM or SDM replacement1

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2020-04-13

    BCM or SDM Replacement: B1001 DTC Clearing Procedure

    1. 1Fault

      • The SIR lamp stays on steady after an SDM or BCM has been replaced, with DTC B1001 current in the SDM.

    2. 2Finding the cause

      Possible causes

      • When the ignition is first turned to RUN, the SDM compares the restraints ID stored in the SDM to the restraints ID stored in the body control module (BCM).
      • B1001 sets if the restraints ID in the SDM does not match the one in the BCM, or the VIN information in the SDM does not match the VIN information stored in the PCM/VCM.

    3. 3Correction

      Repair

      1. A replaced SDM or BCM must learn the restraints ID, which requires performing a 10 minute V.T.D. "Vehicle Theft Deterrent - Learn" with the Tech 2.
      2. On some vehicles a calibration may need to be selected after choosing "Vehicle Theft Deterrent - Learn"; select the one labeled "Vehicle Theft Deterrent for Passlock sensor".

      Caution

      • A 30 minute Theft relearn will not allow the SDM or BCM to learn the restraints ID.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The model table lists GMC Yukon models for model years 2000 - 2006, among other GM trucks, except export vehicles (RPO EXP).
    • Condition：The SIR lamp stays on steady after an SDM or BCM has been replaced, with DTC B1001 current in the SDM.
    • Cause：When the ignition is first turned to RUN, the SDM compares the restraints ID stored in the SDM to the restraints ID stored in the body control module (BCM).
    • Cause：B1001 sets if the restraints ID in the SDM does not match the one in the BCM, or the VIN information in the SDM does not match the VIN information stored in the PCM/VCM.
    • Repair：A replaced SDM or BCM must learn the restraints ID, which requires performing a 10 minute V.T.D. "Vehicle Theft Deterrent - Learn" with the Tech 2.
    • Repair：On some vehicles a calibration may need to be selected after choosing "Vehicle Theft Deterrent - Learn"; select the one labeled "Vehicle Theft Deterrent for Passlock sensor".
    • Caution：A 30 minute Theft relearn will not allow the SDM or BCM to learn the restraints ID.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This Preliminary information communicates information to dealership on how to clear a B1001 DTC after replacing the BCM or SDM.

Known issuesSpeedometer needle appears inaccurate (specification +/- 2 MPH)1

  1. Manufacturer communication2003–2006 GMC YUKON ・ 2024-08-13(2 earlier editions of this document folded here)

    Speedometer Needle Accuracy Preliminary Information

    1. 1Fault

      • A customer may say the speedometer needle appears inaccurate.

    2. 2Finding the cause

      Possible causes

      • An instrument panel cluster with a physical speedometer needle drives the needle electrically with a stepper motor, and some variation in accuracy is possible.

      Steps to confirm (in the document’s order)

      1. Digital readouts such as the "Digital Speedometer" on the DIC read the Vehicle Speed Sensor (VSS) directly and are much more accurate.
      2. The specification for needle accuracy is +/- 2 MPH (= 3.22 km/h) at any given speed when looking straight at the needle.

    3. 3Correction

      This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH (= 3.22 km/h) at any given speed when looking straight at the needle. Â

      What the documents say to do

      Speedometer needle appears inaccurate (specification +/- 2 MPH)

      Confirm

      • The needle accuracy specification is +/- 2 MPH (= 3.22 km/h) at any given speed when looking straight at the needle.

      Caution

      • Tire size, tread life and inflation may cause some variation in the readings.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2003 - 2024 GMC Yukon models (note: the years run later than the years this service covers).
    • Condition：A customer may say the speedometer needle appears inaccurate.
    • Cause：An instrument panel cluster with a physical speedometer needle drives the needle electrically with a stepper motor, and some variation in accuracy is possible.
    • Confirm：Digital readouts such as the "Digital Speedometer" on the DIC read the Vehicle Speed Sensor (VSS) directly and are much more accurate.
    • Confirm：The specification for needle accuracy is +/- 2 MPH (= 3.22 km/h) at any given speed when looking straight at the needle.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH (= 3.22 km/h) at any given speed when looking straight at the needle. Â

ELECTRICAL SYSTEM17

  1. Manufacturer communication2000–2006 GMC YUKON ・ 2024-10-25(1 earlier editions of this document folded here)

    Tire Pressure Monitor and Diagnostic Tools Software Update

    1. 1Fault

      • The process for reaching the GM Tools site has changed.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester  and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：All brands and models, model years 1995 - 2025.
    • Condition：The process for reaching the GM Tools site has changed.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester  and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

  2. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2024-08-26

    GM Vehicle Wide Programming (VWP) Software Update Process

    1. 1Fault

      • Vehicle Wide Programming (VWP) is a new process to update software on GM vehicles.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Various GM makes and models.
    • Condition：Vehicle Wide Programming (VWP) is a new process to update software on GM vehicles.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.

  3. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2024-06-25

    Service Programming System Error Codes E4398-E6961 Service Information

    1. 1Fault

      • Some technicians may notice Service Programming System (SPS) errors; the document gives the troubleshooting for them.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to GM passenger cars and light duty trucks, model years 2000 to 2025.
    • Condition：Some technicians may notice Service Programming System (SPS) errors; the document gives the troubleshooting for them.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.

  4. Manufacturer communication2005–2006 GMC YUKON DENALI ・ 2024-05-16(3 earlier editions of this document folded here)

    Aftermarket ALDL/DLC Interface Device Concerns

    1. 1Fault

      • Customers report various issues related to high or low speed data bus traffic.
      • Bus or LAN traffic may stay active, leading to a discharged vehicle battery.
      • C0561 stored in the EBCM, leading to a traction control issue.
      • SES, MIL or CEL light on with numerous communication DTCs such as U0100, U0101, U186B and U1862.

    2. 2Finding the cause

      Possible causes

      • Monitoring devices and other electronic accessories such as aftermarket cruise control or police speed checking devices (RADAR or LIDAR) may cause one or more of the listed concerns.
      • Many of the problems could come from an open connection on the HSCAN bus; a device that connects to only one CAN + causes bus errors and erratic ECU behavior.

      Steps to confirm (in the document’s order)

      • If normal SI diagnostics find no other root cause, check for a device plugged into the ALDL or Data Link Connector (DLC) for tracking and/or maintenance interval scheduling.

    3. 3Correction

      Repair

      1. If SI diagnostics do not find the source and the device is available, try to duplicate the condition, then remove the device to see whether the condition is eliminated.
      2. If removing the DLC interface device resolves the concern, tell the customer the result and that they should work with the device's supplier for further resolution.

      Caution

      • The device and the rest of its harness can be hidden out of sight, and the technician may not notice that the diagnostic connector is not in the factory location.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：2025 and prior GM passenger cars and trucks (including BrightDrop).
    • Applies to：The bulletin is written with a focus on full size trucks, full size vans and other fleet vehicles, but could apply to any vehicle.
    • Condition：Customers report various issues related to high or low speed data bus traffic.
    • Condition：Bus or LAN traffic may stay active, leading to a discharged vehicle battery.
    • Condition：C0561 stored in the EBCM, leading to a traction control issue.
    • Condition：SES, MIL or CEL light on with numerous communication DTCs such as U0100, U0101, U186B and U1862.
    • Confirm：If normal SI diagnostics find no other root cause, check for a device plugged into the ALDL or Data Link Connector (DLC) for tracking and/or maintenance interval scheduling.
    • Cause：Monitoring devices and other electronic accessories such as aftermarket cruise control or police speed checking devices (RADAR or LIDAR) may cause one or more of the listed concerns.
    • Cause：Many of the problems could come from an open connection on the HSCAN bus; a device that connects to only one CAN + causes bus errors and erratic ECU behavior.
    • Caution：The device and the rest of its harness can be hidden out of sight, and the technician may not notice that the diagnostic connector is not in the factory location.
    • Repair：If SI diagnostics do not find the source and the device is available, try to duplicate the condition, then remove the device to see whether the condition is eliminated.
    • Repair：If removing the DLC interface device resolves the concern, tell the customer the result and that they should work with the device's supplier for further resolution.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

  5. Manufacturer communication2006 GMC YUKON ・ 2024-05-06(1 earlier editions of this document folded here)

    Magnetically Controlled Suspension Electrical Connector Not Seated

    1. 1Fault

      • The subject names a Service Suspension System message with DTCs C0575, C0580, C0585 or C0590.
      • Some customers may comment on a Service Suspension System message displayed on the Drivers Information Center (DIC).

    2. 2Finding the cause

      Possible causes

      • During assembly, the 90 degree electrical connector at the top end of a shock absorber (actuator) may not have been fully seated, or may have been bumped firmly enough to partially disconnect it or create an internal contact concern.

      Steps to confirm (in the document’s order)

      1. Visually examine the green insulator and center post of the electrical connector to make sure it is straight and in serviceable condition; replace the connector and retest if required.
      2. Reconnect the electrical connector to the shock absorber (actuator), clear the suspension DTC and confirm that the code does not reset.
      3. If the code returns, remove the electrical connector from the shock absorber (actuator) and pigtail, and swap it with the connector on the opposite side shock absorber (actuator).

    3. 3Correction

      Repair

      • If the DTC follows the connector to the other side, replace the connector; if not, refer to SI and follow the diagnostics for the DTC originally found.

      Parts

      • Part number 19180262, Connector, S/ABS Elec Susp Control.

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

      Caution

      • Complete the document's steps before attempting shock absorber (actuator) replacement.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The model list includes the 2006-2014 GMC Yukon and Yukon XL.
    • Applies to：It applies to vehicles equipped with RPO F55, Z55 or Z95.
    • Condition：The subject names a Service Suspension System message with DTCs C0575, C0580, C0585 or C0590.
    • Condition：Some customers may comment on a Service Suspension System message displayed on the Drivers Information Center (DIC).
    • Cause：During assembly, the 90 degree electrical connector at the top end of a shock absorber (actuator) may not have been fully seated, or may have been bumped firmly enough to partially disconnect it or create an internal contact concern.
    • Caution：Complete the document's steps before attempting shock absorber (actuator) replacement.
    • Confirm：Visually examine the green insulator and center post of the electrical connector to make sure it is straight and in serviceable condition; replace the connector and retest if required.
    • Confirm：Reconnect the electrical connector to the shock absorber (actuator), clear the suspension DTC and confirm that the code does not reset.
    • Confirm：If the code returns, remove the electrical connector from the shock absorber (actuator) and pigtail, and swap it with the connector on the opposite side shock absorber (actuator).
    • Repair：If the DTC follows the connector to the other side, replace the connector; if not, refer to SI and follow the diagnostics for the DTC originally found.
    • Parts：Part number 19180262, Connector, S/ABS Elec Susp Control.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    Magnetically Controlled Suspension Electrical Connector Not Seated.

  6. Manufacturer communication2002–2006 GMC YUKON DENALI ・ 2024-04-05(1 earlier editions of this document folded here)

    Electrical Ground Repair Information

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Possible causes

      • Loose, stripped or corroded ground connections increase the possibility of improper system function and loss of module communication, and may lead to unnecessary repairs and component replacement.

    3. 3Correction

      Repair

      1. For a damaged or missing M6 ground stud, select an adjacent location with 20 mm (0.79 in) clearance behind the panel surface and 20 mm (0.79 in) clearance around the M6 conductive rivet stud flange.
      2. Drill a 10 mm (0.40 in) diameter hole through the panel.
      3. Remove paint and primer from the area around the 10 mm (0.40 in) hole until bare metal is visible.
      4. Using a small brush, apply Dielectric Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet stud.
      5. Install the M6 conductive nut to the rivet stud and tighten to 71 lb in (= 8.02 N·m).

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

      2 more points

      Parts

      • Conductive-finish fasteners: 11561645 M6 nut, 11570340 M6 rivet stud, 11588564 M8 bolt, 11609412 M8 nut, 11609538 M7 bolt (self-threading), 11609669 M6 bolt.

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

      Caution

      • Use only the GM-approved replacement fasteners with conductive finish for electrical ground repair.
      • The rivet stud and surrounding panel area must be refinished before the ground wire terminal and conductive nut are installed, to keep the ground secure, stable and corrosion-free.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2024 and earlier GM passenger cars and trucks, including medium duty and heavy duty.
    • Cause：Loose, stripped or corroded ground connections increase the possibility of improper system function and loss of module communication, and may lead to unnecessary repairs and component replacement.
    • Caution：Use only the GM-approved replacement fasteners with conductive finish for electrical ground repair.
    • Repair：For a damaged or missing M6 ground stud, select an adjacent location with 20 mm (0.79 in) clearance behind the panel surface and 20 mm (0.79 in) clearance around the M6 conductive rivet stud flange.
    • Repair：Drill a 10 mm (0.40 in) diameter hole through the panel.
    • Repair：Remove paint and primer from the area around the 10 mm (0.40 in) hole until bare metal is visible.
    • Caution：The rivet stud and surrounding panel area must be refinished before the ground wire terminal and conductive nut are installed, to keep the ground secure, stable and corrosion-free.
    • Repair：Using a small brush, apply Dielectric Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet stud.
    • Repair：Install the M6 conductive nut to the rivet stud and tighten to 71 lb in (= 8.02 N·m).
    • Repair：If the M6 weld nut at the ground location is damaged or stripped, a M7 conductive self-threading bolt may be used to secure the ground wire terminal.
    • Repair：Install the M7 conductive self-threading bolt and tighten to 80 lb in (= 9.04 N·m).
    • Parts：Conductive-finish fasteners: 11561645 M6 nut, 11570340 M6 rivet stud, 11588564 M8 bolt, 11609412 M8 nut, 11609538 M7 bolt (self-threading), 11609669 M6 bolt.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.

  7. Manufacturer communication2006 GMC YUKON DENALI ・ 2024-02-12

    High Voltage Safety – High Voltage Disabling

    1. 1Fault

      • Attempting repairs or service without the appropriate training, tools and equipment could cause death or injury.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      High Voltage Safety ? High Voltage Disabling

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2015 and prior GM extended range electric, electric, Two-Mode Hybrid or e-Assist vehicles.
    • Condition：Attempting repairs or service without the appropriate training, tools and equipment could cause death or injury.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    High Voltage Safety ? High Voltage Disabling

  8. Manufacturer communication2006 GMC YUKON DENALI ・ 2024-02-02(2 earlier editions of this document folded here)

    Service Programming System Error Codes Information

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      • If the programming error cannot be resolved with the troubleshooting instructions, do not replace the control module.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2024 and prior GM passenger cars and light duty trucks.
    • Repair：If the programming error cannot be resolved with the troubleshooting instructions, do not replace the control module.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).

  9. Manufacturer communication2005–2006 GMC YUKON DENALI ・ 2023-12-26(3 earlier editions of this document folded here)

    Terminal Test Probe / Replacement Terminal / Terminated Lead

    1. 1Fault

      • The J-35616-64B is the latest test probe for checking tension on, or probing, the .64 series terminals.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：2005-2015 GM passenger cars and trucks.
    • Condition：The J-35616-64B is the latest test probe for checking tension on, or probing, the .64 series terminals.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.

  10. Manufacturer communication2003–2006 GMC YUKON DENALI ・ 2023-10-18(1 earlier editions of this document folded here)

    IPC odometer programming method notification

    1. 1Fault

      • It is a reference guide for identifying which odometer programming method to use after replacing the instrument panel cluster (IPC).

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      1. The table lists the 2003-2006 Yukon with the odometer value stored in the IPC and SPS as the programming method.
      2. The SPS method is IPC reprogramming and setup using the service programming system (SPS).

      Caution

      • Vehicles not listed in the document need to follow the SPS Programming for Odometer.
      • Stable battery voltage is critical during programming; any fluctuation, spiking, over voltage or loss of voltage will interrupt it.
      • Install the EL-49642 SPS Programming Support Tool (GM Dealer Equipment Item #PSC-550) to maintain system voltage; if not available, connect a fully charged 12V jumper or booster pack disconnected from the AC supply, and do not connect a battery charger.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The bulletin is addressed to 2020 and prior GM passenger cars and trucks sold in the U.S. and Canada only.
    • Condition：It is a reference guide for identifying which odometer programming method to use after replacing the instrument panel cluster (IPC).
    • Repair：The table lists the 2003-2006 Yukon with the odometer value stored in the IPC and SPS as the programming method.
    • Repair：The SPS method is IPC reprogramming and setup using the service programming system (SPS).
    • Caution：Vehicles not listed in the document need to follow the SPS Programming for Odometer.
    • Caution：Stable battery voltage is critical during programming; any fluctuation, spiking, over voltage or loss of voltage will interrupt it.
    • Caution：Install the EL-49642 SPS Programming Support Tool (GM Dealer Equipment Item #PSC-550) to maintain system voltage; if not available, connect a fully charged 12V jumper or booster pack disconnected from the AC supply, and do not connect a battery charger.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This informational bulletin provides information for the IPC odometer programming method quick reference guide.

  11. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2022-11-02

    Module Harvesting Service Bulletin

    1. 1Fault

      • To find the root cause of some component drains or logic lockups, the module is retrieved for analysis without being reset, by keeping it powered with a small battery.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      This service bulletin provides information on Module Harvesting.

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to all passenger cars and trucks, 2000 to 2023 model years.
    • Condition：To find the root cause of some component drains or logic lockups, the module is retrieved for analysis without being reset, by keeping it powered with a small battery.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This service bulletin provides information on Module Harvesting.

  12. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2021-07-06

    EVAP System Leak Diagnosis for MIL with DTCs P0442/P0455

    1. 1Fault

      • The MIL is illuminated and DTC P0442 (EVAP small leak detected) and/or P0455 (EVAP large leak detected) is set in the Engine Control Module (ECM).

    2. 2Finding the cause

      Possible causes

      • DTC P0455 sets for a large leak or a purge blockage; a large leak can come from an unseated tube connection, a damaged tube, a stuck open canister vent valve or a stuck closed purge valve.
      • DTC P0442 sets for a small leak, which can come from a stuck open purge valve or a stuck open canister vent valve.

      Steps to confirm (in the document’s order)

      1. Inspect all purge connections for proper installation and look for damage or wear along the lines; if damage is seen, confirm with the smoke test.
      2. Some leaks show only under pressure and some only under vacuum, so check both ways.
      3. Cycling the purge and vent solenoids with GDS2 while inspecting may indicate a sticking valve.
      4. Critical connections on the engine side: purge tube to purge valve at the intake manifold, purge tube to chassis EVAP line at the rear of the engine near the transmission, and chassis EVAP line to canister.
      5. Critical connections on the tank side: fuel tank load line to canister, vent valve line to vent valve, fuel tank load line jumper connection near the fuel tank, and the fuel tank cap being closed properly.
      2 more points

    3. 3Correction

      This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to GM passenger cars and trucks, including medium duty, model years 2000 to 2021.
    • Applies to：The bulletin applies only to vehicles with gasoline engines.
    • Condition：The MIL is illuminated and DTC P0442 (EVAP small leak detected) and/or P0455 (EVAP large leak detected) is set in the Engine Control Module (ECM).
    • Cause：DTC P0455 sets for a large leak or a purge blockage; a large leak can come from an unseated tube connection, a damaged tube, a stuck open canister vent valve or a stuck closed purge valve.
    • Cause：DTC P0442 sets for a small leak, which can come from a stuck open purge valve or a stuck open canister vent valve.
    • Confirm：Inspect all purge connections for proper installation and look for damage or wear along the lines; if damage is seen, confirm with the smoke test.
    • Confirm：Some leaks show only under pressure and some only under vacuum, so check both ways.
    • Confirm：Cycling the purge and vent solenoids with GDS2 while inspecting may indicate a sticking valve.
    • Confirm：Critical connections on the engine side: purge tube to purge valve at the intake manifold, purge tube to chassis EVAP line at the rear of the engine near the transmission, and chassis EVAP line to canister.
    • Confirm：Critical connections on the tank side: fuel tank load line to canister, vent valve line to vent valve, fuel tank load line jumper connection near the fuel tank, and the fuel tank cap being closed properly.
    • Confirm：If all connections are good, check the vent valve for a stuck open position.
    • Confirm：If the vent valve is verified to be functioning correctly, go on to investigate the purge valve.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

  13. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2021-04-20

    OnStar Voice Fallback Number Update

    1. 1Fault

      Not stated

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Remedy
    OnStar® Voice Fallback Number Update Some customers may have received a letter from OnStar® stating that "We recently tried to provide a software update to the OnStar® hardware in your vehicle. However, your system could not be updated remotely. As a result, some of your OnStar® system functions may not be working as expected." The customer is further instructed in this letter to "Please contact your dealer – or any dealer near you – as soon as possible to schedule an appointment for this no-cost software update. Your dealer will reprogram your OnStar® module with an update. This is for vehicles that have previously received the Canada upgrade as described in Service Bulletin #15-08-44-001F."

  14. Manufacturer communication2004–2006 GMC YUKON ・ 2021-03-15

    Climate Control Module Software Issue - Inventory Return

    1. 1Fault

      • Dorman requests that inventory of part 599-211XD be returned, including all date codes.

    2. 2Finding the cause

      Possible causes

      • Dorman is conducting an inspection on this SKU, including all date codes that have been shipped; the document does not state a defect.

    3. 3Correction

      Repair

      • Problems with one of these parts on a vehicle are covered through the Dorman labor claims process.

      Parts

      • The alert concerns Dorman climate control module part number 599-211XD.
    Read the sentences of the record

    From the manufacturer’s document

    • Parts：The alert concerns Dorman climate control module part number 599-211XD.
    • Condition：Dorman requests that inventory of part 599-211XD be returned, including all date codes.
    • Cause：Dorman is conducting an inspection on this SKU, including all date codes that have been shipped; the document does not state a defect.
    • Repair：Problems with one of these parts on a vehicle are covered through the Dorman labor claims process.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This SKU is a Climate Control Module. The customer communication requested return of unsold inventory to inspect for a software issue. If the software issue exists it can cause a fan in the climate control system to stay on even when the ignition is turned off. The fan staying on even though the ignition is off can drain the battery, making the vehicle unable to start.

  15. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2019-11-12

    Preliminary Information: Vibration Diagnosis Using Pico Oscilloscope

    1. 1Fault

      • Customers complain of vehicle vibration under any of various driving conditions.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. Drive the vehicle to verify the condition and record a Pico data file of the concern.
      2. Review the Pico file and use it to help determine the root cause or component.

    3. 3Correction

      Repair

      • Repair the vehicle using the Pico information together with any published information relevant to the vibration frequency observed.

      Caution

      • Attempting a vibration repair without knowing the frequency is compared to repairing a check engine light without knowing the stored DTC.
      • 12-03-10-001B is a generic document on the possibility of tire to rim orientation and of the tire slipping on the rim.
      • Component level vibrations such as blower motor, brake pulsation or shudder on turns do not require a Pico file.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：All models, model years 2000 - 2020.
    • Condition：Customers complain of vehicle vibration under any of various driving conditions.
    • Caution：Attempting a vibration repair without knowing the frequency is compared to repairing a check engine light without knowing the stored DTC.
    • Confirm：Drive the vehicle to verify the condition and record a Pico data file of the concern.
    • Confirm：Review the Pico file and use it to help determine the root cause or component.
    • Repair：Repair the vehicle using the Pico information together with any published information relevant to the vibration frequency observed.
    • Caution：12-03-10-001B is a generic document on the possibility of tire to rim orientation and of the tire slipping on the rim.
    • Caution：Component level vibrations such as blower motor, brake pulsation or shudder on turns do not require a Pico file.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Motors Technical Assistance Center record another Pico file and save it to the computer. After the new Pico Oscilloscope data has been saved email the data to General Motors Technical Assistance Center in the subject line include ?Vibration? ?Business Associate Code? and the last 8 of the Vehicle Identification Number.

  16. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2019-10-28

    OnStar Cellular Communication Upgrade to 3G/4G LTE

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Possible causes

      • Canadian wireless service providers plan to decommission their 2G CDMA network through 2015, and OnStar currently depends on working 2G CDMA networks.

      Steps to confirm (in the document’s order)

      • Before starting, inspect the radio to verify that the GM original equipment radio is present and functioning.

    3. 3Correction

      Repair

      1. Canadian vehicles without OnStar 3G/4G LTE need a hardware upgrade to keep OnStar services without interruption.
      2. The labor time table lists 1.0 hr for 2003-2006 GMC Yukon models.

      Caution

      • Hardware upgrade sets are VIN specific and must be installed on the vehicle they were ordered for.
      • The Tech 2 cannot communicate with the upgraded OnStar module; GDS 2 must be used for diagnostics specific to the upgraded OnStar system.
      • Before reprogramming, verify that battery voltage is more than 12 volts but less than 16 volts; the battery must be fully charged first.
      • Do not press the red OnStar Emergency Button at any time during the installation; it causes module configuration issues.
      • Canadian OnStar equipped vehicles travelling into the United States are to be serviced as any U.S. vehicle would be.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Covers 2000-2014 GM passenger cars and light duty trucks.
    • Applies to：Vehicles equipped with OnStar (RPO UE1) are covered.
    • Cause：Canadian wireless service providers plan to decommission their 2G CDMA network through 2015, and OnStar currently depends on working 2G CDMA networks.
    • Repair：Canadian vehicles without OnStar 3G/4G LTE need a hardware upgrade to keep OnStar services without interruption.
    • Caution：Hardware upgrade sets are VIN specific and must be installed on the vehicle they were ordered for.
    • Confirm：Before starting, inspect the radio to verify that the GM original equipment radio is present and functioning.
    • Caution：The Tech 2 cannot communicate with the upgraded OnStar module; GDS 2 must be used for diagnostics specific to the upgraded OnStar system.
    • Caution：Before reprogramming, verify that battery voltage is more than 12 volts but less than 16 volts; the battery must be fully charged first.
    • Caution：Do not press the red OnStar Emergency Button at any time during the installation; it causes module configuration issues.
    • Caution：Canadian OnStar equipped vehicles travelling into the United States are to be serviced as any U.S. vehicle would be.
    • Repair：The labor time table lists 1.0 hr for 2003-2006 GMC Yukon models.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This informational bulletin provides information for the GM of Canada OnStar Cellular Communication Upgrade to 3G/4G LTE for vehicles that may need an upgrade.

  17. Manufacturer communication2004–2006 GMC YUKON DENALI ・ 2019-07-29

    Labor Operation Numbers for Module Reprogramming Warranty Claims

    1. 1Fault

      • Module reprogramming labor operations are for warranty transactions for reprogramming a control module (without replacing it) with new or updated software and/or calibration files using the TIS Service Programming System (SPS).

    2. 2Finding the cause

      Not stated

    3. 3Correction

      This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module.

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2020 and prior GM passenger cars and trucks.
    • Condition：Module reprogramming labor operations are for warranty transactions for reprogramming a control module (without replacing it) with new or updated software and/or calibration files using the TIS Service Programming System (SPS).

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module.

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