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 B393B
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 Descriptor
DT
Description and Operation
ELECTRONIC PARKING BRAKE DESCRIPTION
Vehicles with the electric parking brake have a switch in the center console
or on the dash, which takes
the place of the manual parking brake system, the foot pedal and release handle.
In case of insufficient
electrical power, the electric parking brake cannot
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