FixVault

High Mounted Stop Lamp Replacement

WARNING: This page is about a different car, the 2007 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Rear Spoiler & Components
GM1757461Courtesy of GENERAL MOTORS CORP.
High Mounted Stop Lamp Replacement

Callout Component Name
NOTE: Refer to Fastener Notice .
Preliminary Procedure 
  1. Remove both inner tail lamps. Refer to Tail Lamp Replacement .
  2. Reach inside the tail lamp holes and remove the four nuts securing the rear spoiler to the rear bumper fascia.
  3. Disconnect the electrical connector.
1 Rear Spoiler Studs (Qty: 4)
Tip:  Remove the center two studs in order to separate the CHMSL from the rear spoiler.
2 Center High Mounted Stop Lamp (CHMSL)
Tip:  Remove the two inner studs from the rear spoiler in order to separate the CHMSL from the rear spoiler.
3 Rear Spoiler

Tighten:  Tighten the spoiler nuts to 10 N.m (89 lb in)