GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Remove the overhead console. Refer to Roof Console Replacement in Interior Trim.

  3. Object Number: 257120  Size: SH
  4. Disconnect the electrical harness from the control assembly.
  5. Remove the control assembly from the overhead console.

Installation Procedure


    Object Number: 257120  Size: SH
  1. Install the control assembly to the overhead console.
  2. Connect the electrical harness to the control assembly.
  3. Install the overhead console. Refer to Roof Console Replacement in Interior Trim.
  4. Connect the negative battery cable.
  5. Test the circuit operation.