Buick Regal: Diagnostic Information and Procedures

 DTC P1553

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 Procedure

 Securing Child Restraints (With the Seat Belt in the Front Seat)

This vehicle has airbags. A rear seat is a safer place to secure a forward-facing child restraint. See Where to Put the Restraint. In addition, the vehicle has a passenger sensing system which is designed to turn off the front outboard passenger frontal airbag and knee airbag under certain conditio