Buick Regal 2018-2026 Service Manual / Accessories and Equipment / Wipers and Washers / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
- DTC B370A
- DTC B370B
- DTC B3715 or B3875
- DTC B371A
- DTC B3811
- Symptoms - Wiper/Washer Systems
- Low Washer Fluid Indicator Malfunction
- Washer Malfunction
- Rain Sensor Malfunction
- Rear Wiper System Malfunction
- Rear Washer System Malfunction
- Headlamp Washer Malfunction
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DTC B370A
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.
Diag
DTC B370B
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.
Diag
DTC B3715 or B3875
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.
Diag
SEE MORE:
DTC P0556, P0557, or P0558
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.
Refer to Diagnostic Procedure Instructions for an overview of each
diagnostic category.
DTC Descripto
Drive Belt Chirping, Squeal, and Whine Diagnosis
Diagnostic Aids
A chirping or squeal noise may be intermittent due to moisture on the
drive belts or the pulleys. It may be
necessary to spray a small amount of water on the drive belts in order to
duplicate the customers concern. If
spraying water on the drive belt duplicates the symptom, c
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