klepZ OwnerReports

2005 Mercury Grand Marquis problems

Owners have filed 634 complaints about the 2005 Mercury Grand Marquis with NHTSA. Exterior lighting accounts for 47.9% of them — far more than any other system, ahead of electrical system at 12%.

Complaints634
Crashes33
Fires10
Injuries29
Deaths0

What owners report breaking

Exterior lighting 47.9% · 304
Electrical system 12.0% · 76
Air bags 10.6% · 67
Vehicle speed control 6.2% · 39
Seat belts 5.7% · 36
Steering 3.2% · 20
Structure 1.7% · 11
Service brakes, hydraulic 1.6% · 10
Severity

Of those complaints, 33 describe a crash, 10 describe a fire and 29 report an injury.

Reading the numbers

Across the 18 model years of the Mercury Grand Marquis in this data, 2005 draws the most complaints of any of them.

Filing volume has held steady, 23 in the last three years against 23 in the three before.

The median odometer reading at the time of complaint was 70,500 miles.

In owners' own words

The contact owns a 2005 Mercury Grand Marquis. The vehicle was taken to the local dealer, where it was repaired under NHTSA Campaign Number: 15V861000 (Exterior Lighting). The contact stated that the headlights activated without driver input. The contact removed the circuit wires. The vehicle was not diagnosed or repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 80,082. Exterior lighting · reported at 80,082 miles
The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving the headlights failed. The contact turned the lights on and the failure recurred. The vehicle was taken to the dealer who diagnosed that the light module and the icm needed to repair. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was 82,864. Updated 10/10/12 *cn updated 10/17/12 Exterior lighting · reported at 82,864 miles
The contact owns a 2005 Mercury Grand Marquis. While driving 25 mph at night, both headlights failed. The vehicle was taken to an authorized dealer who stated that he would have to replace the entire unit. The vehicle was then taken to a local repair shop where the lights were repaired. The contact called the manufacturer who offered no assistance. The failure mileage was approximately 58,000. Updated 03/16/11 Exterior lighting · reported at 58,000 miles

Verbatim from NHTSA filings. Complaints are unverified owner reports.

Safety recalls

Checking NHTSA for open recalls…

Other Mercury Grand Marquis years

Compare all 18 model years →