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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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issueDIC “Reduced Brake Power” message and reduced vacuum boostRemove

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Known issuesDIC “Reduced Brake Power” message and reduced vacuum boost1

  1. Manufacturer communication2002–2003 GMC YUKON ・ 2002-12-01

    DIC "Reduced Brake Power" message, reduced vacuum boost (bulletin 02-05-23-004)

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      • The correction is to inspect or replace the intake manifold and recalibrate the instrument panel cluster (IPC).
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    From the manufacturer’s document

    • Applies to：Bulletin 02-05-23-004, Driver's Information Center (DIC) "Reduced Brake Power" message and reduced vacuum boost, lists 2002-03 Cadillac Escalade 2WD, Chevrolet Avalanche, Silverado, Suburban, Tahoe, GMC Sierra, Yukon, XL with the power vacuum boost brake system (RPOs JC3 and JC4).
    • Repair：The correction is to inspect or replace the intake manifold and recalibrate the instrument panel cluster (IPC).

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins - November, 2002 02-05-23-004; Driver’s Information Center (DIC) “Reduced Brake Power” Message, Reduced Vacuum Boost (Inspect/Replace Intake Manifold and Recalibrate the Instrument Panel Cluster IPC); 2002-03 Cadillac Escalade 2WD, Chevrolet Avalanche, Silverado, Suburban, Tahoe, GMC Sierra, Yukon, XL, with Power Vacuum Boost Brake System (RPOs JC3 and JC4) Driver’s Information Center (DIC) “Reduced Brake Power” Message, Reduced Vacuum Boost (Inspect/Replace Intake Manifold and Recalibrate the Instrument Panel Cluster IPC)