One problem related to underbody shield has been reported for the 1998 Buick Regal. The most recently reported issues are listed below.
: the contact stated without warning the brake light illuminated. The vehicle was taken to an independent repair shop, where it was determined the entire under side of the vehicle was rusted. The vehicle was located in a salt belt state. The manufacturer was alerted.
| Underbody Shield problems | |
| Door Hinge problems | |
| Structure problems | |
| Door problems | |
| Body problems |