GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the rear seat cushion in order to gain access to the rear fuse block. Refer to Rear Seat Cushion Replacement in Seats.

  2. Object Number: 577406  Size: SH
  3. Remove the rear fuse block cover in order to gain access to the park lamp relay.
  4. Remove the park lamp relay (2) from the rear fuse block.

Installation Procedure


    Object Number: 577406  Size: SH
  1. Install the park lamp relay (2) to the rear fuse block.
  2. Install the rear fuse block cover.
  3. Install the rear seat cushion. Refer to Rear Seat Cushion Replacement in Seats.