GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 GMC K Sierra - 4WD 🢒 Body and Accessories 🢒 Cellular Communication 🢒 OnStar Button Assembly Replacement

Removal Procedure
  1. Remove the dash trim bezel. Refer to Instrument Panel Cluster Trim Plate Bezel Replacement in Instrument Panel, Gauges and Console.

    2. Object Number: 621461 Size: SH
  2. Grasp the OnStar® button assembly (1) and pull outwards to remove the button assembly.

    3. Object Number: 621462 Size: SH
  3. Disconnect the electrical connectors for the switches.
  4. Remove the switches and the button assembly (2).

Installation Procedure

    Object Number: 621462 Size: SH
  1. Reconnect the switches and button assembly (2) electrical connectors.

    2. Object Number: 621461 Size: SH
  2. Install the OnStar® button assembly (1) into the dash.
  3. Reinstall the dash trim bezel. Refer to Instrument Panel Cluster Trim Plate Bezel Replacement in Instrument Panel, Gauges and Console.