One problem related to power window has been reported for the 1999 Mercury Grand Marquis. The most recently reported issues are listed below.
A child was able to climb on door becuse of make of rest and location of power window switch, pushed power window button, almost injuring child.
| Interior Rearview Mirror problems | |
| Windshield Wiper/washer problems | |
| Power Window problems | |
| Side/rear Glass problems |