Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Installation Procedure
2006 Buick Terraza CXL, 3.5 L, AWDSECTION Installation Procedure
- When replacing a VCIM, record the 11-digit ESN and the 10-digit STID number from the label on the new VCIM.
- Install the VCM to the bracket using the clip strap and tighten the bolt.
Tighten: Tighten the bolt to 10 N.m (89 lb in).
- Connect the electrical connectors.
- Connect the cell antenna coaxial cable to the VCIM.
- Install the upper trim pad. Refer to Upper Trim Pad, Outer Trim Cover, Fuse Block Access Cover Replacement - Instrument Panel in Instrument Panel, Gages and Console.
- Install the windshield garnish molding. Refer to Garnish Molding Replacement - Windshield Pillar in Interior Trim.
- Reconfigure the OnStar® system. Refer to Control Module References in Computer/Integrating Systems.
NOTE:
Refer to Fastener Notice
in Cautions and Notices.
IMPORTANT:
After replacing the vehicle communication interface module, you must configure the OnStar® system. Failure to configure the system will result in an additional customer visit for repair. In addition, pressing and holding the white dot button on the keypad will NOT reset this version of the OnStar® system. This action will cause a DTC to set.
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.