Buick Regal: Repair Instructions
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Inspection Procedure
1.
CONTROL MODULE DTC CHECK - Using a scan tool, perform the Vehicle DTC
Information function - Verify there are no current control module DTCs set. If
any DTC is set, refer to
Calibration (without UGN)
NOTE: Do NOT swap cameras between vehicles, it is not approved and a
VIN
mismatch will occur.
The calibration process for the front view camera system is necessary when a
f
NOTE: Adaptive Cruise Temporarily Unavailable service message may be
displayed if this calibration procedure has to be performed. The radar
may have become misaligned.
After replacing and programming
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NOTE: The following steps must be completed before using the symptom
tables:
1. Perform Diagnostic System Check - Vehicle , in order to verify that all of
the following conditions are true:
No DTCs are set.
The control modules can communicate via the serial data link.
2. Refer to Wiper/Washer
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