Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Vehicle Care
257
3. Turn the bulb socket (1)
counterclockwise to remove it
from the lamp assembly (3).
4. Pull the bulb (2) straight out of
the bulb socket.
5. Push the replacement bulb
straight into the bulb socket
and turn the bulb socket
clockwise to install it into the
lamp assembly.
6. Move the lamp assembly into
the trunk lid, engaging the clip
side first.
7. Push on the lamp side opposite
the clip until the lamp assembly
snaps into place.
Replacement Bulbs
Exterior Lamp
Bulb
Number
Back-Up Lamp
921LL
(W16W)
Front Turn
Signal Lamp
7444NA
Headlamp High
Beam (Base)
HIR2
Headlamp Low
Beam (Base)
HIR2
License Plate Lamp
W5WLL
Rear Turn Signal
7443NA
(WY21W)
For replacement bulbs not listed
here, contact your dealer.
Electrical System
High Voltage Devices and
Wiring
{
Warning
Exposure to high voltage can
cause shock, burns, and even
death. The high voltage
components in the vehicle can
only be serviced by technicians
with special training.
High voltage components are
identified by labels. Do not
remove, open, take apart,
or modify these components.
High voltage cable or wiring has
orange covering or labels. Do not
probe, tamper with, cut, or modify
high voltage cable or wiring.
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.