Taillamps and Turn Signal Lamps
To replace a taillamp or turn signal bulb, do the following:
1. Open the liftgate.

2. Remove the two
screws from the
taillamp assembly.
3. Pull the taillamp assembly away from the
vehicle.

4. Unclip the wiring harness (A) and remove the
three socket retaining screws (B).
5. Remove the socket plate.
6. Holding the socket, pull the old bulb to
release it from the socket.
7. Push the new bulb into the socket until it clicks.
8. Reinstall the socket plate and tighten the
three screws.
9. Reconnect the wiring harness.
10. Reinstall the taillamp assembly by lining up
the locator pins with the retainers in the
vehicle’s body.
11. Reinstall the two screws and tighten
See also:
Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if ...
Front Fog Lamp Light
For vehicles with front fog lamps, this light comes on when the front fog lamps
are in use.
The light goes out when the front fog lamps are turned off. See Front Fog Lamps
for more inform ...
Lockout Protection
This feature stops the power door locks from
locking when the key is in the ignition and a door
is open to protect you from locking your key in
the vehicle.
If the power lock switch is pressed w ...
