RoadVitals

1999 Mercury Grand Marquis Driver assistance Problems

Owner-reported complaints naming the driver-assistance system, filed with NHTSA

Data refreshed

Driver assistance reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
12
Latest May 20, 2016
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
7%
of 164 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
5
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
1

What this page shows

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 1999 Mercury Grand Marquis submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 12 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming driver-assistance

Shown in the owner’s own words, exactly as filed

Driver assistanceFuel systemSeat belts
Filed May 20, 2016

THE PASSENGERS SIDE SEAT BEAT COMES UNDONE AT TIMES AND THE SPEED SENSOR WORKS INTERMITTENTLY AND IT LEAKS GAS FROM AROUND THE FUEL PUMP

NHTSA ID
10870118
Incident
Apr 1, 2016
Driver assistanceEngine
Filed Dec 12, 2014

MY CAR WAS IN DRIVE AT A BUSINESS TRAFFIC INTERSECTION DRIVE WAY ON A SLIGHT HILL WITH THE BRAKES ON WHEN THE ENGINE SURGED AND THE CAR STARTED TO REVERSE WHILE STILL IN DRIVE. I HAD TO PUT CONSIDERABLE PRESSURE ON THE BRAKES TO STOP IT. I CHECKED AND THE SHIFT LEVER WAS STILL IN DRIVE. MY CAR HAS BEEN PROPERLY MAINTAINED AND WAS RECENTLY SERVICED WITH ALL REQUIRED SERVICES DONE. THIS REALLY SCARED ME AND I WOULD HAVE CRASHED INTO A CAR IF IT WAS BEHIND ME. FORD SHOULD LOOK INTO THIS SAFETY PROBLEM. *TR

NHTSA ID
10663813
Incident
Dec 11, 2014
Mileage
108,000 mi
Driver assistance
Filed Aug 30, 2011

TL* THE CONTACT OWNS A 1999 MERCURY GRAND MARQUIS. WHILE DRIVING 75 MPH WITH THE SPEED CONTROL ENGAGED, THE SPEED INCREASED WHEN THE BRAKES WERE APPLIED AND FAILED TO DISENGAGE. THE CONTACT WAS FORCED TO MANUALLY DISENGAGE THE VEHICLE SPEED CONTROL IN ORDER TO AVOID A CRASH. THE DEALER ADVISED THE CONTACT TO BRING THE VEHICLE IN TO BE REPAIRED AT HIS EXPENSE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 97,000. UPDATED 10/21/11 *BF THE CONSUMER STATED WHEN HE ATTEMPTED TO DISENGAGE THE CRUISE CONTROL, THE VEHICLE JERKED AND WENT INTO PASSING GEAR, FAILING TO DISENGAGE FROM CRUISE CONTROL. THE CONSUMER HAD TO PURCHASE A NEW SWITCH, DUE TO THE FAILURE OF THE CRUISE CONTROL. UPDATED 12/19/11

NHTSA ID
10422547
Incident
Aug 24, 2011
Mileage
97,000 mi
Driver assistance
Filed May 7, 2008

TL*THE CONTACT OWNS A 1999 MERCURY GRAND MARQUIS. WHILE DRIVING AT ANY SPEED, THE TRACTION CONTROL LIGHT FLASHED AND THE VEHICLE LOST ACCELERATION. THE CONTACT ATTEMPTED TO ACCELERATE, BUT THE SPEED WOULD NOT INCREASE. THE DEALER CHARGED $100 FOR A DIAGNOSIS, BUT COULD NOT DUPLICATE THE FAILURE. THE CONTACT IS AFRAID THAT A CRASH COULD OCCUR. THE MANUFACTURER WAS NOTIFIED; HOWEVER, THEY FELT THAT THE COMPLAINT WAS UNIMPORTANT. THE FAILURE MILEAGE WAS 135,000.

NHTSA ID
10226902
Incident
Mar 25, 2008
Mileage
135,000 mi
Driver assistance
Filed Dec 13, 2004
Crash reported

WHILE SITTING IN TRAFFIC ACCELERATOR CABLE SNAPPED, CAUSING CONSUMER'S VEHICLE TO STRIKE THE VEHICLE IN THE FRONT. *AK......CENTRAL COLLISION CENTOR OF NEW LENOX, INC 114 OAK STREET, NEW LENOX,IL 60451 REPLACED THE CABLE, AN DNOT THE DEALER. CONSUME RHAS THE OLD PARTS. *AK

NHTSA ID
10103676
Incident
Dec 4, 2004
Mileage
70,000 mi
Driver assistance
Filed Aug 12, 2002

VEHICLE WILL NOT IDLE, CONSUMER HAS TO PRESS ACCELERATOR TO KEEP VEHICLE IDLING. DEALER REPLACED IDLE CONTROL VALVE TWO MONTHS AGO. AT THIS TIME PART NEEDS TO BE REPLACED AGAIN. VALVE WAS FIRST REPLACED IN 2000.*AK

NHTSA ID
8016022
Incident
Jun 5, 2002
Driver assistance
Filed Apr 2, 2002

WHILE SLOWLY PARKING VEHICLE, CONSUMER STATES THE VEHICLE ALL OF A SUUDEN LUNGED FOWARD IN FULL ACCELERATION, IT JUMPED THE PARKING BUMPER AND INTO THE VEHICLE IN THE OPPOSITE PARKING SPACE, SIDESWIPED ANOTHER VEHICLE AND PUSHED THE FIRST VEHICLE INTO A THIRD VEHICLE, THE BRAKES HAD NO EFFECT IN STOPPING THE VEHICLE.*JB

NHTSA ID
564894
Incident
Jan 8, 2002
Driver assistance
Filed Aug 24, 2000
Crash reported

ACCELERATOR GOT STUCK IN OPEN POSITION, CAUSING VEHICLE TO CONTINUE ACCELRATING AFTER COMING TO A STOP. VEHICLE HIT SOME THING BEFORE SHUTTING OFF.FORD HAS BEEN CONTACTED.*AK

NHTSA ID
868547
Driver assistance
Filed Aug 9, 2000

I PULLED UP TO AN INTERSECTION, THE CAR ACCELERATED RAPIDLY. I MASHED BRAKES BUT CAR KEPT ON RAPIDLY ACCELERATING, TIRES SCREECHING AND PEELING RUBBER. I HAD TO TURN OFF IGNITION TO STOP CAR.

NHTSA ID
727424
Incident
Aug 4, 2000
AirbagsBrakesDriver assistance+1 more
Filed Apr 10, 2000
Crash reported1 injury reported

VEHICLE DOWNSHIFTED INTO PASSING GEAR WHILE DRIVING DOWN A HILL AND VEHICLE ACCELERATED. BRAKES DID NOT RESPONSE, CAUSING CONSUMER TO RUN INTO A BUS AND TELEPHONE POLE. ALSO, DUAL AIRBAGS DID NOT DEPLOY. BUT, COVER CAME OFF, RESULTING IN A BROKEN HIP AND PELVIS. PRIOR TO THIS ACCIDENT CONSUMER WAS COMPLAINING ABOUT TRANSMISSION. BUT, DEALER STATED IT WAS NOT IMPORTANT. *AK

NHTSA ID
859937
Incident
Nov 6, 1999
Driver assistanceTransmission
Filed Sep 29, 1999
Crash reported

WHILE SITTING IN TRAFFIC VEHICLE JUMPED OUT OF GEAR AND LUNGED FORWARD, REAR ENDING ANOTHER VEHICLE. *AK

NHTSA ID
849226
Incident
Sep 14, 1999
Driver assistance
Filed Sep 29, 1999
Crash reported

THE VEHICLE ACCELERATED FORWARD WITH THE DRIVERS FOOT ON THE BRAKE PEDAL, AND HIT ANOTHER VEHICLE IN FRONT OF IT. DLR HAS SEEN VEHICLE. *AK

NHTSA ID
849142

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Other components reported on this vehicle

Categories with enough reports to have a page of their own

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .