2003 Mercury Grand Marquis Brakes Problems
- Complaints
- 7about this part
- Share
- 2%of 362 total for the year
- Median mileage
- 18,091miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the brakes of the 2003 Mercury Grand Marquis, 2% of the 362 complaints for this model year. Where a mileage was given, the median is 18,091 miles. 2 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Left rear emergency brake hardware malfunctioned while backing the vehicle rearward in the driveway. The emergency brake was off at the time incident occurred. Had emergency brakes repaired on january 26, 2017.”
NHTSA complaint #10948897, filed 2017-02, 99,000 miles“Nar 05/21/2003 with less than 250 miles the consumer brake pedal slowly sank to the floor. The consumer is requesting ford motor company recall the vehicle and fix the brake problem.”
NHTSA complaint #10020373, filed 2003-05, 241 miles“On three occasions when the gear was placed into drive the vehicle would lurch forward or when the brakes were applied the same thing would occur causing the tires to screech. The vehicle was taken to dealers who determined that the gas and brake pedals were to close to each other. When depressing one pedal the other pedal was also applied. The dealers also determined that because the pedals were in close proximity it would cause the vehicle to unintentionally accelerate. The dealers contacted the manufacturer who confirmed that there were no recalls on this issue. Updated 7/14/2006 -”
NHTSA complaint #10160963, filed 2006-06, 18,091 miles“While waiting for red the light to change, the vehicle suddenly accelerated. The driver could not maintain control, the vehicle jumped the curb and crashed into a ditch. There was no diagnostic test performed on the vehicle. The air bag did not deploy, the electronic fuel shut off and did not engage and the seat belts did not tighten. The consumer was told that the adjustable pedals caused the accident and have caused a lot of accidents. Ford claimed that fault is the driver's fault due to their foot being on both pedals at the same time.”
NHTSA complaint #10044348, filed 2003-12, 209 miles“The contact owns a 2003 Mercury Grand Marquis. The contact stated that while driving 20 MPH, the brake pedal was depressed and the engine rpms increased approximately to 4000. The contact stated excessive force was applied to the brake pedal and the vehicle jerked. The brake pedal was aggressively depressed until the brakes responded and the vehicle was able to come to a stop. The vehicle was taken to the dealer where the failure was unable to be diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 130,000. …”
NHTSA complaint #10643942, filed 2014-10, 130,000 milesRelated service bulletins
- 10017556Jan 1, 2005Numerous anti-lock brake system (abs) wheel speed sensor (wss) dtcs, such as c1145, c1155, c1165, c1175, c1296, c1297, c1298, c1299 and c1222.
- 10014077Dec 13, 2004Numerous anti-lock brake system (abs) wheel speed sensor (wss) diagnostic trouble codes (dtcs).
Brakes: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2011 | 1 | 11% |
| 2010 | 2 | 8% |
| 2009 | 6 | 23% |
| 2008 | 10 | 13% |
| 2007 | 6 | 6% |
| 2006 | 12 | 8% |
| 2005 | 18 | 4% |
| 2004 | 7 | 2% |
| 2003 | 7 | 2% |
| 2002 | 6 | 8% |
| 2001 | 16 | 10% |
| 2000 | 18 | 11% |
| 1999 | 9 | 5% |
| 1998 | 7 | 5% |
| 1997 | 35 | 11% |
| 1996 | 23 | 10% |
| 1995 | 30 | 17% |
| 1994 | 19 | 12% |
| 1993 | 22 | 15% |
| 1992 | 48 | 19% |
| 1991 | 13 | 16% |
| 1990 | 8 | 14% |
| 1989 | 6 | 10% |
| 1988 | 2 | 3% |
| 1986 | 2 | 10% |
| 1983 | 1 | 14% |
Other parts of the 2003 Mercury Grand Marquis
207 complaintsElectrical system
51 complaintsSteering
28 complaintsSuspension
28 complaintsVehicle speed control
27 complaintsEngine cooling
13 complaintsTransmission and drivetrain
12 complaintsAir bags
11 complaintsFuel system
10 complaintsVisibility (wipers, defrost, mirrors)
10 complaintsWheels
10 complaintsBody and structure
9 complaints
← All problems reported for the 2003 Mercury Grand Marquis
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology