GMC Terrain 2017 Owner's Manual page 214

3. Remove the five attachment
nuts (1) securing the taillamp
assembly to the liftgate.
4. Disengage the retaining
hook (2) and pull the taillamp
assembly out of the vehicle
liftgate.
5. Disconnect the lamp wiring
harness.
6. Turn the bulb socket
counterclockwise and pull
it out.
7. Pull the bulb straight out of the
socket.
8. Install the new bulb.
9. Push the bulb socket in and
turn it clockwise.
10. Reverse Steps 2 5 to reinstall
lamp assembly.
Back Up Lamp
Removal of the lamp assembly is
not required to replace the back-up
lamp bulb.
Vehicle Care
To replace one of these lamps:
1. Open the liftgate. See
Liftgate 0 31.
2. Remove the interior trim
access panel.
3. Turn the bulb socket
counterclockwise and pull
it out.
4. Pull the bulb straight out of the
socket.
5. Install the new bulb.
6. Push the bulb socket in and
turn it clockwise.
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