Removal and Replacement

Telematics Control Head

The telematics control head is integrated with the front interior light module.

• In the event any of the OnStar control buttons are either inadvertently or deliberately pressed for longer than 15 seconds, the OBD program assumes a button is sticking. The red status light will come on and a DTC loads in memory. Perform OBD program using VAS 5051/5052 and check DTC memory for DTC 01526 "mechanical malfunction". Inform customers accordingly.

• A faulty control button cannot be replaced separately. Replace complete telematics control head.

CAUTION!
• Switch off all electrical components.

• Switch ignition off and remove ignition key.

Removing:

- Remove front interior lamp module.

- Carefully lift connector guide - 1 - and press off in direction of - arrow -.





- Release retaining hooks - arrows - and remove button - 1 -.





- Disconnect electrical connection - 2 - and remove switch module.

Installing:

- Install in reverse order of removal.