2006 Mercury GRAND MARQUIS problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
143 owner complaints analyzed
2 distinct recall campaigns
63,706 mi median reported failure mileage
Scope: 2006 model year. Data snapshot: . 117 complaints include usable failure mileage.
Most common problems
Air Bags is the most frequently named component, appearing in 37 of 143 complaints (25.9%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 40 | 28.0% |
| Steering behavior | 16 | 11.2% |
| Transmission and shifting | 7 | 4.9% |
| Fuel system concerns | 7 | 4.9% |
| Electrical and battery issues | 3 | 2.1% |
| Engine operation | 2 | 1.4% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Air Bags | 37 |
| Vehicle Speed Control | 36 |
| Seat Belts | 21 |
| Steering | 13 |
| Fuel/Propulsion System | 11 |
| Engine | 8 |
| Electrical System | 7 |
| Structure:Body | 6 |
Air Bags: 37; Vehicle Speed Control: 36; Seat Belts: 21; Steering: 13; Fuel/Propulsion System: 11; Engine: 8; Electrical System: 7; Structure:Body: 6
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 23 |
| 25,000 to 49,999 | 19 |
| 50,000 to 74,999 | 26 |
| 75,000 to 99,999 | 21 |
| 100,000 to 149,999 | 22 |
| 150,000 and above | 6 |
Under 25,000: 23; 25,000 to 49,999: 19; 50,000 to 74,999: 26; 75,000 to 99,999: 21; 100,000 to 149,999: 22; 150,000 and above: 6
50,000 to 74,999 miles has the most reports with usable mileage (26). 26 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2006 | 9 |
| 2007 | 10 |
| 2008 | 2 |
| 2009 | 4 |
| 2010 | 7 |
| 2011 | 7 |
| 2012 | 5 |
| 2013 | 12 |
| 2014 | 26 |
| 2015 | 17 |
| 2016 | 12 |
| 2017 | 8 |
| 2018 | 5 |
| 2019 | 6 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 1 |
2006: 9; 2007: 10; 2008: 2; 2009: 4; 2010: 7; 2011: 7; 2012: 5; 2013: 12; 2014: 26; 2015: 17; 2016: 12; 2017: 8; 2018: 5; 2019: 6; 2020: 4; 2021: 2; 2022: 2; 2023: 1; 2024: 1; 2025: 2; 2026: 1
Pattern summary
Air Bags leads the component reports. Braking behavior appears in 40 complaint narratives. Steering behavior appears in 16 complaint narratives. Transmission and shifting appears in 7 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10156709 · 2006-05-03 (May 3, 2006)
DT*: THE CONTACT STATED WHILE ATTEMPTING TO APPLY BRAKE PRESSURE AT LOW SPEEDS THE BRAKES FAILED, CAUSING THE VEHICLE TO ACCELERATE. THE DEALERSHIP WAS UNABLE TO DUPLICATE THE PROBLEM. UPDATED 05/30/06. *AK
Owner-reported narrative. 440 miles reported. Look up ODI 10156709 at NHTSA ↗
Owner report 10156813 · 2006-05-04 (May 4, 2006)
DT*: THE CONTACT STATED THERE WERE THREE SEPARATE PROBLEMS WITH THE VEHICLE. THE FIRST PROBLEM OCCURRED WHEN THE AUTOMATIC PEDAL ADJUSTER WAS BEING USED THE ENGINE REVVED. THE SECOND OCCURRED WHILE DRIVING, THE ACCELERATOR PEDAL WAS DIFFICULT TO DEPRESS, AFTER SEVERAL MILES OF DRIVING IN THIS CONDITION, THE CONTACT PRESSED AND RELEASED THE PEDAL AND IT SUDDENLY RESUMED NORMAL OPERATION. WHILE IN STOP AND GO TRAFFIC DRIVING AT 20 MPH THE VEHICLE SURGED FORWARD, WHILE THE BRAKES WERE APPLIED AND REAR ENDED ANOTHER VEHICLE. SEATBELTS WERE IN USE;…
Owner-reported narrative. 713 miles reported. Look up ODI 10156813 at NHTSA ↗
Owner report 10268976 · 2009-05-17 (May 17, 2009)
WAS GETTING ON HIGHWAY, ACCELERATED MORE THAN NORMAL TO PASS A VERY SLOW VEHICLE ENTERING HIGHWAY FROM 5 MPH ON HIGHWAY (ESTIMATE 80 TO 90% OF FULL THROTTLE), WHEN I WAS SAFE OF SLOW VEHICLE AND LET OFF THE PEDAL, VEHICLE CONTINUED TO ACCELERATE TO ABOUT 83 MPH AS I RECALL, I CONTINUED TO PRESS BRAKE, STILL ACCELERATING, PRESSED STEERING CONTROL BUTTONS TO MAKE SURE CRUISE CONTROL WAS OFF (DID NOT HAVE IT ON PREVIOUS TO THIS), PRESSED BRAKES AGAIN AND AGAIN, FINALLY VEHICLE SLOWED DOWN JUST BEFORE I WAS GOING TO TURN OF THE IGNITION. DID NOT H…
Owner-reported narrative. 47,393 miles reported. Look up ODI 10268976 at NHTSA ↗
Owner report 10322777 · 2010-03-30 (March 30, 2010)
TL*THE CONTACT OWNS A 2006 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHEN UTILIZING THE CRUISE CONTROL AT 60 MPH AND HIGHER, THE VEHICLE WOULD ABNORMALLY ACCELERATE WITHOUT WARRANT. HE WAS ABLE TO DEACTIVATE THE CRUISE CONTROL BY DEPRESSING THE BRAKE PEDAL BUT THE ENGINE CONTINUED TO IDLE VIOLENTLY AND THE VEHICLE CONTINUED TO ACCELERATE. THE CONTACT WAS UNABLE TO DEACTIVATE THE CRUISE CONTROL USING THE DEACTIVATION SWITCH ON THE STEERING WHEEL. THE DEALER COULD NOT DUPLICATE THE FAILURE. HE STATED THAT THE VEHICLE WAS SAFE TO DRIVE AND T…
Owner-reported narrative. 26,000 miles reported. Look up ODI 10322777 at NHTSA ↗
Owner report 10256243 · 2009-01-25 (January 25, 2009)
WHEN PARKING A NEWLY ACQUIRED USED 2006 MERCURY GRAND MARQUIS AT IDLE SPEED IN A LOCAL SHOPPING CENTER, THE ENGINE ACCELERATED AND THE HARDER I PRESSED THE BRAKE THE FASTER THE ENGINE RAN. TO THE EXTENT THE TRACTION CONTROL ACTIVATED AND THE WHEELS SPUN IN PLACE. THE ONLY WAY I PREVENTED CRASHING INTO THREE PARKED WAS TO SHIFT THE TRANSMISSION INTO NEUTRAL WITH THE ENGINE RACING. WHAT APPARENTLY HAPPENED WAS MY FOOT WAS NOT CENTERED ON THE BRAKE PEDAL AND THE PEDAL TRAVELED TO THE POINT WHERE I WAS ALSO PRESSING ON THE ACCELERATOR. EVI…
Owner-reported narrative. 30,000 miles reported. Look up ODI 10256243 at NHTSA ↗
Owner report 10393918 · 2011-04-01 (April 1, 2011)
I AM CERTIFIED SAFETY PROFESSIONAL WITH OVER 30 YEARS EXPERIENCE WORKING IN THE OCCUPATIONAL SAFETY FIELD. TWICE WITHIN THE LAST WEEK, MY VEHICLE ACCELERATED TO 5000 RPM WHILE PRESSING THE BRAKE PEDAL TO STOP AT AN INTERSECTION. MY FOOT WAS ON THE BRAKE PEDAL AND NOT ON THE GAS PEDAL. I HAD TO QUICKLY SHIFT INTO NEUTRAL TO AVOID ENTERING THE INTERSECTION INTO CROSSING TRAFFIC. BRAKES WOULD NOT HOLD. A FEW SECONDS AFTER SHIFTING INTO NEUTRAL THE ENGINE DECELERATED BACK TO NORMAL ON ITS OWN. CARPET WAS NOT THE ISSUE. THIS IS A SERIOUS MALFUNC…
Owner-reported narrative. 73,250 miles reported. Look up ODI 10393918 at NHTSA ↗
Owner report 10523174 · 2013-07-04 (July 4, 2013)
IMMEDIATELY AFTER FILLING THE FUEL TANK, WHILE STOPPED AT AN INTERSECTION, THE FUEL TANK FELL OUT OF THE VEHICLE. INVESTIGATION HAS REVEALED THAT BOTH STRAPS HOLDING THE FUEL TANK INTO THE VEHICLE HAVE FAILED DUE TO RUST AND CORROSION. THE FAILURE IS APPROXIMATELY 3-4 INCHES FROM THE STRAPS REAR ATTACHMENT POINTS. THE ONLY THING PREVENTING THE TANK FROM COMPLETELY SEPARATING FROM THE VEHICLE IS THE FILLER TUBE WHICH IS HOLDING THE DRIVERS SIDE OF THE FUEL TANK IN RELATIVE POSITION WITH APPROXIMATELY A 3IN DROP. THE PASSENGERS SIDE HAS COMPLETE…
Owner-reported narrative. 100,000 miles reported. Look up ODI 10523174 at NHTSA ↗
Owner report 10577168 · 2014-04-03 (April 3, 2014)
TL* THE CONTACT OWNS A 2006 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT THE FUEL TANK SAFETY STRAP WAS COVERED WITH RUST AND THE FUEL TANK WAS BEING HELD BY ONE STRAP. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO STATED BOTH FUEL TANK STRAPS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE DEFECT. THE APPROXIMATE FAILURE MILEAGE WAS 102,000.
Owner-reported narrative. 102,000 miles reported. Look up ODI 10577168 at NHTSA ↗
Owner report 10428929 · 2011-10-06 (October 6, 2011)
TL* THE CONTACT OWNS A 2006 MERCURY GRAND MARQUIS LS. THE CONTACT STATED THAT THE AIR BAG WARNING LIGHT WOULD ILLUMINATE ON THE PASSENGER SIDE OF THE VEHICLE. IN ADDITION, THE CIGARETTE LIGHTER FUSE WOULD BLOW WHEN USED, WHICH THE CONTACT WAS CONCERNED COULD CAUSE A FIRE. THE DEALER DIAGNOSED THAT THERE WAS A WIRING FAILURE. THE MANUFACTURER WAS CONTACTED AND DENIED ANY ASSISTANCE WITH REPAIRS TO THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND THE CURRENT MILEAGE WAS 71,000. UPDATED 11/10/11 *BF THE CONSUMER STATED THE AIR BAG …
Owner-reported narrative. 71,000 miles reported. Look up ODI 10428929 at NHTSA ↗
Owner report 10596626 · 2014-06-06 (June 6, 2014)
TL* THE CONTACT OWNS A 2006 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT ALL OF THE ELECTRICAL COMPONENTS FAILED WHILE TRAVELING AT UNKNOWN SPEEDS. THE CONTACT HAD TO CRASH INTO A GUARDRAIL IN ORDER TO COME TO A STOP. A POLICE REPORT WAS FILED AND NO INJURIES WERE REPORTED. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE TECHNICIAN WAS UNABLE TO DUPLICATE THE FAILURE TWICE BEFORE THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE CURRENT AND FAILURE MILEAGE WAS 50,000. UPDATED 10/02/14*LJ UPDATED 3/3/15 *JS
Owner-reported narrative. 50,000 miles reported. Look up ODI 10596626 at NHTSA ↗
Owner report 10583182 · 2014-04-16 (April 16, 2014)
TL* THE CONTACT OWNS A 2006 MERCURY GRAND MARQUIS. THE CONTACT STATED WHILE DRIVING 40 MPH, AN UNKNOWN WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL THEN THE VEHICLE STALLED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO STATED THAT THE THROTTLE BODY SYSTEM NEEDED TO BE REPLACED. SHORTLY AFTER THE REPAIR, THE VEHICLE CAUGHT FIRE AND WAS DESTROYED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE AND THE CURRENT MILEAGES WERE UNKNOWN.
Owner-reported narrative. Look up ODI 10583182 at NHTSA ↗
Owner report 10787565 · 2015-11-01 (November 1, 2015)
MY 2006 MERCURY GRAND MARQUIS LS PREMIUM CAR HAS AN UNRESOLVED STALLING ISSUE. THE PROBLEM IS EXACERBATED WHEN THE CAR'S ENGINE WARMS UP, ESPECIALLY DURING WARMER WEATHER. IT TENDS TO STALL OUT AT EXTENDED STOPLIGHTS OR IF THE VEHICLE NEEDS TO BE STOPPED WITHIN A SHORT DISTANCE. MY CAR FIRST BEGAN STALLING AFTER I HAD IT WASHED IN GASOLINE STATION'S AUTOMATIC CAR WASH. SHORTLY AFTER IT WAS WASHED, THE ENGINE BEGAN RUNNING EXTREMELY ROUGH AND THEN FINALLY STALLED OUT WITH THE 'ENGINE' LIGHT ON YELLOW LIGHT ON THE DASHBOARD. THE FIRST …
Owner-reported narrative. 63,000 miles reported. Look up ODI 10787565 at NHTSA ↗