Replacement Bulbs; Electrical System; High Voltage Devices And Wiring - GMC Yukon Denali 2010 Manual

4. Press the release tab, if bulb socket has one, and
turn the bulb socket counterclockwise to remove it
from the taillamp assembly.
5. Pull the old bulb straight out from the bulb socket.
6. Press a new bulb into the bulb socket and insert it
into the taillamp assembly. Turn the bulb socket
clockwise into the taillamp assembly until it clicks.
7. Reinstall the taillamp assembly. When reinstalling,
make sure to line up the pins on the taillamp
assembly with the vehicle. If this is not done the
taillamp assembly cannot be correctly installed.

Replacement Bulbs

Exterior Lamp
Back-up Lamp and Rear Turn
Signal Lamp
Sidemarker Lamp
For replacement bulbs not listed here, contact your
dealer/retailer.

Electrical System

High Voltage Devices and Wiring

Exposure to high voltage can cause shock, burns,
and even death. The high voltage systems in your
vehicle can only be serviced by technicians with
special training.
High voltage devices are identified by labels.
Do not remove, open, take apart, or modify
Bulb Number
these devices. High voltage cable or wiring has
orange covering. Do not probe, tamper with, cut,
3156
or modify high voltage cable or wiring.
194
WARNING:
6-25