Circuit/System Testing
WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Ignition ON, verify DTC B0099 is not set.
- If DTC is set, replace the Inflatable Restraint Sensing and Diagnostic Control Module and the active hood hinge actuators.