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. Refer to REARVIEW MIRROR REPLACEMENT .
Scheme 193
Removal Procedure
| IMPORTANT | The vehicle communication interface module (VCIM) has a specific set of unique numbers that tie the module to each vehicle. These numbers, the 10-digit station identification and the 11-digit electronic serial number, are used by the National Cellular Network and Onstar® to identify the specific vehicle. Because these numbers are tied to the vehicle identification number of the vehicle, you must never exchange these parts with those of another vehicle. |
Scheme 194
- Remove the I/P top trim panel. Refer to «TRIM PANEL REPLACEMENT-INSTRUMENT PANEL (I/P) UPPER»(ref-189012-S24193601622005091100000) .
- Disconnect the wire connectors (2) from the module.
- Disconnect the coaxial cable (3) from the module.
- Remove the nuts (2) retaining the module to the bracket.
- Remove the module (3) from the vehicle.
Scheme 195
Scheme 196
- If replacing the VCIM, record the 10-digit STID number, and the 11-digit ESN number from the labels on the new module.
- Install the module on the bracket. NOTE: Refer to «FASTENER NOTICE»(ref-175132-S17785009232005041500000) .
- Install the retaining nuts (2). Tighten Tighten the nuts to 1.6 N.m (14 lb in).
- Connect the coaxial cable (3) to the module.
- Connect the wire connectors (2) to the module.
- Install the I/P trim panel. Refer to «TRIM PANEL REPLACEMENT-INSTRUMENT PANEL (I/P) UPPER»(ref-189012-S24193601622005091100000) . 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 resets this version of the Onstar® system. This action will cause a DTC to set.
- Install the scan tool. Use the special functions menu in order to perform the Onstar® setup procedure for this vehicle.
- Move the vehicle to an open area that is away from tall buildings and with a clear view of unobstructed sky. Allow the vehicle to run for 10 minutes.
- Use the ID information menu on the scan tool to access the new station ID (STID) and the electronic serial number (ESN) from the new VCIM.
- Press the blue Onstar® button to connect to the Onstar® Call Center and perform the following procedure: Tell the advisor that this vehicle has received a new VCIM. Ask the advisor to add the new STID and the ESN to update the customer's account. Follow any additional instructions from the Onstar® advisor. Ask the advisor to activate the Onstar® Personal Calling feature, if available.
- The default language for voice recognition in the generation 5 Onstar® module in English. To change the language resident in the module, refer to «SERVICE PROGRAMMING SYSTEM (SPS)»(ref-184120-S18443623862005082200000) .
Scheme 197
- Remove the overhead console. Refer to «CONSOLE REPLACEMENT-OVERHEAD»(ref-189026-S40780984342005091100000) .
- Disconnect the microphone (2) connector from the jumper harness.
- Unclip the microphone bracket (1) from the overhead console.
- Disconnect the microphone 2-way connector (2) from the mating 2-way connector.
Scheme 198
- Mount the microphone (1) to the overhead console at the left rear corner of the overhead console.
- Clip the microphone bracket (1) to the overhead console.
- Connect the microphone connector (2) to the mating 2-way connector.
- Reinstall the overhead console. Refer to «CONSOLE REPLACEMENT-OVERHEAD»(ref-189026-S40780984342005091100000) .