Buick Regal: Seat Belts

 Symptoms - Mirrors

NOTE: The following steps must be completed before using the symptom tables. 1. Perform the Diagnostic System Check - Vehicle before using the Symptom Tables in order to verify that all of the following are true: There are no DTCs set. The control modules can communicate via the serial data lin

 Lights On Indicator Malfunction

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. Circuit/System De