Buick Regal 2018-2025 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:
Specifications, Schematic and Wiring Diagrams
Specifications
TEMPERATURE VERSUS RESISTANCE - INTAKE AIR TEMPERATURE S
TEMPERATURE VERSUS RESISTANCE - ENGINE COOLANT TEMPERATURE SENSOR
ALTITUDE VERSUS BAROMETRIC PRESSURE
IGNITION SYSTEM SPECIFICATIONS
FASTENER SPECIFICATIONS
Single Use Non-Threaded Fasteners/Components
NOTE: All fasteners/c
DTC P0089, P00C6, P053F, P228C, or P228D
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
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