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 B3881 or B3882
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
Uplevel DIC
DIC Info Page Options
The info pages on the DIC can be
turned on or off through the
Options menu.
1. Press to access the cluster
applications.
2. Press or
to scroll to the
Options application.
3. Press to enter the
Options menu.
4. Scroll to Info Pages and
press .
5. Press or
to move
thro
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