2015 Buick LaCrosse Owner Manual - Page 287

10-34 Vehicle Care Replacement Bulbs Exterior Lamp Back-Up Lamp Front Turn Signal Lamp Headlamp High Beam (Base) 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. Headlamp Low Beam (Base) License Plate Lamp Rear Turn Signal Bulb Number 921LL (W16W) 7444NA HIR2 HIR2 W5WLL 7443NA (WY21W) 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. Do not probe, tamper with, cut, or modify high voltage cable or wiring. For replacement bulbs not listed here, contact your dealer.