Buick Regal: Headlamp Bulb Replacement - Left Side (High Beam)
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Preliminary Procedure
Windshield Washer Solvent Container Filler Tube Replacement.
- Headlamp Bulb Access Cover
WARNING:
Halogen Bulb Warning.
Procedure
Rotate the cover counterclockwise to remove.
- Headlamp Bulb - High Beam
Procedure
- Disconnect the electrical connector.
- Unlock the retaining tabs.
HEADLAMP BULB REPLACEMENT - LEFT SIDE (LOW BEAM)
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- Headlamp Bulb Access Cover
WARNING:
Halogen Bulb Warning.
Procedure
Rotate the cover counterclockwise to remove.
- Headlamp Bulb - Low Beam
Procedure
- Release the bulb retainer spring
- Disconnect the electrical connectors.
HEADLAMP BULB REPLACEMENT - RIGHT SIDE (HIGH BEAM)
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- Headlamp Bulb Access Cover
WARNING:
Halogen Bulb Warning.
Procedure
Rotate the cover counterclockwise to remove.
- Headlamp Bulb - High Beam
Procedure
- Disconnect the electrical connector.
- Unlock the retaining tabs.
HEADLAMP BULB REPLACEMENT - RIGHT SIDE (LOW BEAM)
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- Headlamp Bulb Access Cover
WARNING:
Halogen Bulb Warning.
Procedure
Rotate the cover counterclockwise to remove.
- Headlamp Bulb - Low Beam
Procedure
- Release the bulb retainer spring.
- Disconnect the electrical connectors.
HEADLAMP BRACKET REPLACEMENT
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Preliminary Procedure
Front Bumper Fascia Replacement.
- Headlamp Bolt
CAUTION:
Fastener Caution
Tighten
2.5 N.m (22 lb in)
- Headlamp Bracket Bolt
Tighten
2.5 N.m (22 lb in)
- Headlamp Bracket
READ NEXT:
General
Directive 76/756 EEC and ECE-Regulation 48 cover checking and aiming of
headlamps on vehicle.
Correct aiming of headlamps of vehicles should enable optimal road illumination
by the low beam
Calibration Criteria
NOTE: Remove any excess weight and do not sit in the vehicle during the
headlamp leveling sensor learn procedure. Any additional weight will
cause the calibration of the front and
HEADLIGHTS/DAYTIME RUNNING LIGHTS (DRL) WIRING SCHEMATICS
Controls and Indicators
Halogen Lamps and Daytime Running Lamps (T4A)
Left LED Headlamp Power, Ground and Serial Data (T4L)
Left LED Low Be
SEE MORE:
NOTE: The following steps must be completed before using the symptom
tables.
1. Before using the symptom diagnostic table, perform the Diagnostic System
Check - Vehicle in
order to verify the following conditions:
There are no DTCs set.
The module can communicate via the serial data.
2. Review
PROPELLER SHAFT DESCRIPTION AND OPERATION
The function of the propeller shaft is to transfer power from the power
transfer unit to the differential clutch. It
consists of three tubes sections; the front tube contains a constant velocity
fixed joint mating to the PTU and a
constant velocity plungi