Manufacturer communication — 2006 GMC YUKON DENALI XL

Fitment confirmedReporter type: ManufacturerELECTRICAL SYSTEMUNKNOWN OR OTHER

Relation to the target vehicle

The source's vehicle field includes the trim.

Model year: Match 2006 — Source vehicle field
Model: Match YUKON DENALI XL — Source vehicle field
Trim: Match Denali — Source vehicle field

What the manufacturer’s document says

23-NA-001 ・ normal characteristic (no repair) ・ names this vehicle

Applies to

Applies to GMC Yukon models, model years 2003 to 2014.
the passage
Yukon Models 2003 2014
The involved region is North America.
the passage
Involved Region or Country North America

Fault

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

Finding 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 passage
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.
the passage
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.
the passage
Any other function in the Telematics Communication Interface Control Module (other than OnStar), technicians are directed to diagnose as directed by SI.

Correction

Repair

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

Caution

Do not replace the OnStar module because of the 2G shutdown.
the passage
Do Not replace the OnStar module because of 2G shutdown.
If the vehicle is brought in for inactive/broken/inoperable OnStar features, do not replace the module; the module is not broken.
the passage
is brought into service for inactive/broken/inoperable OnStar features, do not replace the module. The module is not broken.

Compiled by reading the full text of the document; each point stands on the passage shown. Check the document itself, linked below, before working on a vehicle.

Stated content

Communication summary
本サービスブレティンは、OnStar Module 2G Sunset Information に関する、ディーラー/テクニシャン向けの情報を提供する。 Machine translation (unreviewed)
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
Go to this passage in the original

Source

Source: NHTSA Manufacturer Communications
Source reference: 11017252
Received by source: 2025-04-28
Incident date: Unknown

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