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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 704 (CELLULAR COMMUNICATION SYSTEM)REPAIR INSTRUCTIONSONSTAR® BUTTON ASSEMBLY REPLACEMENT (PICKUP)
2003 Chevrolet TrailBlazer 4.2 S, 4WD

OnStar® Button Assembly Replacement (Pickup)

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION OnStar® Button Assembly Replacement (Pickup)
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The OnStar® button assembly located on the rearview mirror can not be serviced separately from the rearview mirror. Should the button assembly need to be replaced, the entire rearview mirror assembly will need to be replaced.

Fig 1: Rearview Mirror Assembly
G01712613Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.