Buick Regal: Diagnostic Information and Procedures

 Interior Mirrors

Interior Rearview Mirrors Adjust the rearview mirror for a clear view of the area behind your vehicle. If equipped with OnStar, the vehicle may have three control buttons at the bottom of the mirror. Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water. Automatic

 Outside Air Temperature Display 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 Based Diagnosis An overview of each diagnostic category can be found here: Diagnostic Procedu