Buick Regal 2018-2026 Owners Manual / Lighting
Buick Regal: Lighting
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Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the
steering column.
There are four positions.
: Turns the exterior lamps off and
deactivates the AUTO mode. Turn
to again to r
Automatic Headlamp
System
When the exterior lamp control is
set to AUTO and it is dark enough
outside, the headlamps come on
automatically.
There is a light sensor on top of the
instrument panel. Do not cover the
sensor; othe
SEE MORE:
DTC P16A7, P16AF, or P16B3
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptors
D
Power Transfer Unit Cover To Intermediate Drive Shaft Seal Replacement
Special Tools
DT-305-1 Driver Handle
DT-51466 Seal Installer
Equivalent regional tools: Special Tools
Removal Procedure
1. Raise and support the vehicle. Lifting and Jacking the Vehicle.
NOTE: The drive shaft remains in the wheel hub.
2. Front Wheel Drive Half Shaft- Right Side@Transfer Case - D
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