Buick Regal: Repair Instructions
- Brake Pedal Position Sensor Calibration
- Headlamp Bulb Replacement - Left Side (High Beam)
- Headlamp Aiming
- Suspension Position Sensor Calibration
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Brake Pedal Position Sensor Calibration
Calibration Criteria
NOTE: Do not apply the brake pedal during the brake pedal position
sensor
calibration procedure. Any movement of the brake pedal during this
procedure will cause the calibration
Headlamp Bulb Replacement - Left Side (High Beam)
Preliminary Procedure
Windshield Washer Solvent Container Filler Tube Replacement.
Headlamp Bulb Access Cover
WARNING:
Halogen Bulb Warning.
Procedure
Rotate the cover counterclockwise to remov
Headlamp Aiming
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
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Symptoms - Lighting
NOTE: The following steps must be completed before using a symptom
table.
1. Perform the Diagnostic System Check - Vehicle before using a symptom table
in order to verify
that all of the following conditions are true:
There are no DTCs set.
The control modules can communicate via the serial dat
Differential Clutch Oil Inspection
1. Raise and support the vehicle.
2. Clean the area around the rear axle fill plug.
3. Place a drain pan under the vehicle.
4.
Differential Clutch Cover Plug(1) - Remove.
5. Rear Axle Housing Filler Plug Gasket(2) - Remove.
6. Check the fluid level. If necessary, fill the differential to the
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