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. Object Number: 352574  Size: SH

    Important: Refer to Headlights/Daytime Running Lights (DRL) Schematics for proper identification of the headlamp relays 1 and 2.

  3. Remove the 2 screws which secure the headlamp relays 1 and 2 mounting bracket (2) to the blower case (1).
  4. Disconnect the headlamp relay (3) electrical connectors.
  5. Slide the headlamp relay (3) off the mounting brackets (2).

Installation Procedure


    Object Number: 352574  Size: SH
  1. Slide the headlamp relay (3) onto the mounting bracket (2).
  2. Connect the headlamp relay (3) electrical connectors.
  3. Install the headlamp relays 1 and 2 mounting bracket (2) to the blower case (1). Secure the mounting bracket (2) with the 2 screws.
  4. Connect the negative battery cable.