Buick Regal 2018-2025 Service Manual / Steering & Driveline & Axle / Steering Wheel and Column / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
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Symptoms - Steering Wheel and Column
NOTE: Review the system operation in order to familiarize yourself with
the system
functions.
Refer to Steering Wheel and Column Description and Operation.
Symptoms List
Refer to a symptom diagnostic
Heated Steering Wheel Malfunction
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure:Diagnostic System
Check - Vehicle
Review the description of Strategy Based Diagnosis:Strategy
SEE MORE:
Setting Adaptive Cruise Control
If is on when not in use, it
could
get pressed and go into ACC when
not desired. Keep off when
cruise is not being used.
Select the set speed desired for
ACC. This is the vehicle speed
when no vehicle is detected in
its path.
ACC will not set at a speed less
than 25 km/h (16 mph), although it
c
DTC B389A
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
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