High Mount Stop Lamp Replacement Envoy, TrailBlazer

1. Open the liftgate.
2. Lower the rear portion of the headliner by releasing the 2 headliner retaining pins.
3. Disconnect the high mount stop lamp electrical connector (2).
4. Remove the grommet (1) from the body.

Notice: Do NOT raise the liftgate while the liftgate glass is open. This can result in damage to the high-mounted stoplamp, the liftgate hinges, or the liftgate glass.

5. Close the liftgate.
6. Open the liftgate window.



7. Remove the 2 screws that retain the high mount stoplamp to the liftgate window reveal molding.
8. Remove the high mount stop lamp from the vehicle.

1. Install the high mount stop lamp to the liftgate window reveal molding, ensuring the center retaining tab is fully seated.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the 2 screws that retain the high mount stop lamp to the liftgate window reveal molding.

Tighten
Tighten the 2 retaining screws to 2.5 N·m (22 lb in).

3. Close the liftgate window.
4. Open the liftgate.



5. Install the grommet (1) to the body.
6. Connect the high mount stoplamp electrical connector (2).
7. Attach the rear portion of the headliner to the roof panel, by seating the 2 headliner retaining pins.
8. Position the liftgate opening weatherstrip over the headliner.