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.

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HOMESERVICE MANUALSBUICK2005LESABRE LIMITED, 4T65E/M15REPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSCELLULAR COMMUNICATION SYSTEMSREPAIR INSTRUCTIONSCOMMUNICATION INTERFACE MODULE REPLACEMENTINSTALLATION PROCEDURE

2005 Buick LeSabre Limited, 4T65E/M15

Installation Procedure

2005 Buick LeSabre Limited, 4T65E/M15SECTION Installation Procedure

Fig 1: View Of VCIM Antenna, Electrical Connections & Bolts

Courtesy of GENERAL MOTORS CORP.

When replacing the VCIM, record the 11-digit electronic serial number (ESN) and the 10-digit station identification (STID) number from the label on the new VCIM (4).
Position the VCIM in the vehicle.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the bolts (1).
Tighten: Tighten the bolts (1) to 4 N.m (36 lb in).
Connect the antenna cable (2) and electrical connections (3) to the VCIM (4).
Install the rear compartment trim. Refer to Compartment Trim Panel Replacement - Rear in Body Rear End.

IMPORTANT: After replacing the vehicle communication interface module, you must reconfigure the OnStar® system. Failure to reconfigure 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.

Reconfigure the OnStar® system. Refer to OnStar Reconfiguration (Gen 6) or OnStar Reconfiguration (Gen 6.1) .

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.