Buick Regal Owners & Service Manuals

Buick Regal: Diagnostic Information and Procedures

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 DTC B0997

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. Refe

 DTC B1024 (Audio Amplifier)

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. Refe

 DTC B1024 (Human Machine Interface Control Module)

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. Refe

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 DTC P0650, P263A, or P263B

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

 Rear Window Defogger

: Press to turn the rear window defogger on or off. An indicator light on the control comes on to show that the rear window defogger is on. The rear window defogger only works when the engine is running. It turns off when the ignition is turned off or in ACC/ACCESSORY. The rear window defogger ca

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