One problem related to side/rear glass has been reported for the 1998 Mercury Grand Marquis. The most recently reported issues are listed below.
While driving rear window exploded without a collision. Cause unknown. The rear glass shuttered completely while traveling. The right rear tire blew out.
| Windshield Wiper/washer Motor problems | |
| Side/rear Glass problems | |
| Windshield problems | |
| Interior Rearview Mirror problems |