There are 4 owner-reported visibility & wipers complaints for the 2001 Mercury Grand Marquisin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
WHEN DRIVING WITH REAR WINDOWS DOWN, AND INITIATING THE CONTROLS TO RETURN THE REAR WINDOWS TO THEIR "CLOSED" POSITION, UPON THE REAR WINDOWS REACHING THE TOP CLOSED POSITION, THE DRIVER SIDE FRONT WINDOW OPENS PARTIALLY OR MAY OPEN FULLY ON IT'S OWN. ALSO WHEN ATTEMPTING TO ROLL ALL WINDOWS UP AT THE SAME TIME, THE CIRCUITRY BECOMES OVERLOADED AND ALL WINDOWS STOP AND WILL NOT MOVE FOR ABOUT 3 TO 5 MINUTES UNTIL THE CIRCUIT TIMER RESETS. *NLM
WHILE DRIVING IN SLEET AND SNOW STORM WINDSHIELD WIPERS FROZE AND STOPPED WORKING. WINDSHIELD WIPER BLADES WERER VERY THIN. CAUSE UNKNOWN. PLEASE ADD VIN. *AK
WHILE DRIVING IN SLEET AND SNOW DEFROSTER DOES NOT WORK PROPERLY. DEFROSTER CAN BE ON, BUT DOESN'T CLEAR WINDOWS. PLEASE ADD VIN. *AK
INTERMITTENTLY WINDSHIELD WIPERS BECOME INOPERABLE, OBSTRUCTING DRIVER'S VIEW. ALSO, SRS LIGHT STAYS ILLUMINATED WHILE THE VEHICLE IS IN MOTION. DEALER HAS NOT BEEN ABLE TO DUPLICATE THE PROBLEM.*AK
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026