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 C0186, C018B, C0196, C019B, C027E, or C0287
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
Piston, Connecting Rod, and Bearing Installation
NOTE: This procedure is not used in Europe.
Special Tools
EN-43953 Ring Compressor - 86 mm
EN-43966 Connecting Rod Guides
EN 45059 Angle Meter
For equivalent regional tools, refer to Special Tools.
1.
Ensure the piston ring end gaps are positioned 90 degrees to each other.
Upper compression
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