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2010 Mercury Grand Marquis Recalls, Problems & Maintenance

The 2010 Mercury Grand Marquis carries 2 open NHTSA recalls — most recently covering pinion shaft and steering. Owners report 6 recurring issue clusters, led by “Throttle body failure and unintended speed change.” Ford closed Mercury in 2011, which is good news for owners: nearly every part is a Ford part. The Grand Marquis is a Crown Victoria, the Sable is a Taurus, the Mountaineer is an Explorer, the Milan is a Fusion, and the Mariner is an Escape. Any competent Ford shop can work on one, and parts pricing follows the Ford volume. Two models break the pattern. The Villager is a rebadged Nissan Quest with a Nissan V6 and a timing belt that must be replaced on schedule. The Mariner Hybrid carries the same high-voltage battery and continuously variable transaxle as the Escape Hybrid, so it needs a shop with hybrid training. Cars from roughly 2007 on use Ford's Intelligent Oil-Life Monitor. Earlier ones run fixed intervals.

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2 Open Recalls

Source: NHTSA

STEERING:RACK AND PINION:PINION SHAFT

Campaign #14V704000 · May 11, 2014

Issue: Ford Motor Company (Ford) is recalling certain model year 2005-2011 Ford Crown Victoria, 2005-2011 Mercury Grand Marquis vehicles manufactured March 23, 2004, to August 30, 2011, and 2005-2011 Lincoln Town Car vehicles manufactured March 8, 2004, to August 30, 2011, and on which the upper intermediate shaft was serviced during the course of safety recall 13V-385. The prior repairs may not have been correctly performed.

Risk: Improper servicing of the upper intermediate shaft could cause the shaft to separate, which can then result in a loss of steering control, and increasing the risk of a crash.

Fix: Ford will notify the owners of vehicles whose repair records reflect that the upper intermediate steering shaft was repaired during the course of the prior recall 13V-385. Dealers will inspect and replace the upper immediate shaft if necessary free of charge. The recall began November 17, 2014. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 14S25.

STEERING

Campaign #13V385000 · Aug 29, 2013

Issue: Ford is recalling certain model year 2005-2011 Ford Crown Victoria (including Crown Victoria Police Interceptors), Mercury Grand Marquis, and Lincoln Town Car vehicles. The affected vehicles are currently registered or were originally sold in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin. Severe corrosion can seize the lower intermediate shaft which may cause the upper intermediate shaft to collapse and the steering column lower bearing to separate.

Risk: If the lower bearing separates, the vehicle may experience a loss of steering, increasing the risk of a crash.

Fix: Ford will notify owners and dealers will replace the lower intermediate shaft, free of charge. The upper intermediate shaft and steering column lower bearing will be inspected to identify any damage that may have occurred as a result of lower intermediate shaft corrosion, and repaired or replaced as necessary. If the steering column lower bearing has separated, a retainer clip will be installed. The recall began on October 23, 2013. Owners may contact Ford at 1-866-436-7332. Ford's recall number is 13S08.

Recall data refreshed Sep 20, 2026.

Known issues & problems for this vehicle

What drivers and federal regulators have officially reported about the 2010 Mercury Grand Marquis.

Reported to NHTSA

Throttle body failure and unintended speed change

VEHICLE SPEED CONTROL

5 NHTSA complaints · 2010-11 → 2014-04

“THROTTLE BODY FAILURE__ ENGINE GOES TO DEAD IDLE AT HIGHWAY SPEEDS, LEAVING THE DRIVER AND PASSENGERS HELPLESS TO EXIT ONTO THE BREAKDOWN LANE OR SHOULDER IF YOU ARE NOT IN THE RIGHT HAND LANE WHEN IT HAPPENS, IE IF YOU ARE ON A 70 MPH INTERSTATE IN THE CENTER LANE WITH VEHICLES”
— Owner report, NHTSA ODI #10954151
“YESTERDAY, TUESDAY 23, 2014, I BACKED OUT OF A PARKING SPOT ON THE PARKING DECK ABOUT 15 FEET AND PUT THE CAR IN DRIVE. IT LURCHED FORWARD AT A TREMENDOUS HIGH SPEED AND ALTHOUGH I HIT THE BRAKES, THE AUTO SLAMMED INTO THE RETAINING WALL AT THE PARKING SPOT I HAD JUST BACKED OUT”
— Owner report, NHTSA ODI #10605276
“TL*THE CONTACT OWNS A 2010 MERCURY GRAND MARQUIS. WHILE DRIVING APPROXIMATELY 20 MPH THE CHECK ENGINE LIGHT ILLUMINATED ON THE DASHBOARD. ONCE THE VEHICLE WAS STOPPED IT BEGAN TO SHAKE AND LUNGE FORWARD. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE HE WAS INFORMED THAT”
— Owner report, NHTSA ODI #10367280

Read all complaints on NHTSA →

Electrical wiring and climate control module faults

ELECTRICAL SYSTEM

4 NHTSA complaints · 2013-07 → 2023-03

“SPLICING ON ALMOST ALL ELECTRICAL SYSTEMS HAD COME APART. AFFECTED WERE THE RADIO, CLOCK, WINDOWS, POWER SEATS, LIGHTS, DOOR LOCKS, TRUNK RELEASE INSIDE CAR, LOW TIRE MONITOR WARNING LIGHT STAYED ON CONSTANTLY, SEAT BELT WARNING LIGHT STAYED ON, WARNING BELL FOR KEY IN IGNITION”
— Owner report, NHTSA ODI #10627951
“TL*THE CONTACT OWNS A 2010 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT THE AIR CONDITIONING SYSTEM FAILED. THE AIR CONDITIONING WOULD ERRONEOUSLY BLOW THROUGH THE DEFROST SYSTEM. THE VEHICLE WAS TAKEN TO THE MECHANIC FOR INSPECTION WHERE THE FAILURE WAS LOCATED AT THE”
— Owner report, NHTSA ODI #10535156
“INTERMITTANTLY BOTH HEADLIGHTS FLICKERING. LIGHTING CONTROL MODULE (LCM) PROBLEM ?”
— Owner report, NHTSA ODI #11509700

Read all complaints on NHTSA →

Body structure water intrusion and panel defects

STRUCTURE

3 NHTSA complaints · 2010-01 → 2011-04

“TL* THE CONTACT OWNS A 2010 MERCURY GRAND MARQUIS LS. THE CONTACT STATED THAT WHENEVER IT WOULD RAIN, WATER WOULD ENTER THE VEHICLE THROUGH THE REAR DRIVER SIDE DOOR. THE DOOR WAS SECURED BUT THERE WAS A SMALL ACCUMULATION OF WATER IN THE REAR FLOORBOARD AREA. IN ADDITION, ALL”
— Owner report, NHTSA ODI #10397952
“THE BODY SIDE MOLDINGS ON MY VEHICLE COMES LOOSE, AND COULD COME OFF AND BECOME AIRBORNE, DAMAGING OTHER VEHICLES. THIS DEFECT HAS BEEN NOTICED ON OTHER 2010 MERCURY MARQUIS. THE DEALER HAS BEEN GREAT, AND IS ORDERING A COMPLETE SET”
— Owner report, NHTSA ODI #10395984
“TL*THE CONTACT OWNS A 2010 GRAND MARQUIS. THE VEHICLE WAS PURCHASED BRAND NEW ON OCTOBER 13, 2009. WHILE THE CONTACT WAS REMOVING SNOW FROM THE HOOD WITH A BROOM, SHE NOTICED THAT THE ROOF HAD COLLAPSED. THE DEALER ADVISED THE CONTACT TO INFORM THE HOME OWNERS INSURANCE COMPANY”
— Owner report, NHTSA ODI #10298410

Read all complaints on NHTSA →

Windshield wiper motor and blade failure

VISIBILITY/WIPER

2 NHTSA complaints · 2011-08 → 2014-05

“WHILE DRIVING ON EXPRESSWAY AT NIGHT IN A DRIVING RAINSTORM, MY WIPERS QUIT WORKING. I WAS ABLE TO PULL OVER UNTIL THE RAIN STOPPED, BUT COULD HAVE BEEN A DISASTER. ON APRIL 23RD THE DEALER DIAGNOSED THE WIPER MOTOR ASSEMBLY WAS BAD”
— Owner report, NHTSA ODI #10592070
“TL* THE CONTACT OWNS A 2010 MERCURY GRAND MARQUIS WITH GOODYEAR WINDSHIELD WIPER BLADES (NA), MODEL NUMBER: 765-22. THE CONTACT STATED THAT THE WIPER BLADES WERE DEFECTIVE AND WOULD NOT REMAIN ATTACHED TO THE FRAME WHILE DRIVING”
— Owner report, NHTSA ODI #10422549

Read all complaints on NHTSA →

Intermediate steering shaft and rack failure

STEERING

6 NHTSA complaints · 2014-04 → 2025-10

“the lower bearing separates, the vehicle may experience a loss of steering, increasing the risk of a crash. Improper servicing of the upper intermediate shaft could cause the shaft to separate, which can then result in a loss of steering control, and increasing the risk of a”
— Owner report, NHTSA ODI #11695076
“ON 11/14/18 I RECEIVED A "REGIONAL PROGRAM 13R01" LETTER CONCERNING MY VEHICLE. IT INDICATES "IN STATES WHERE HEAVY ROAD SALT IS USED, SEVERE CORROSION OF THE JOINTS ON THE LOWER INTERMEDIATE STEERING SHAFT CAN RESULT IN A STEERING COLUMN SEPARATION, LEADING TO A LOSS OF”
— Owner report, NHTSA ODI #11151733
“TL* THE CONTACT OWNS A 2010 MERCURY GRAND MARQUIS. WHILE DRIVING AT AN UNKNOWN SPEED, THE STEERING WHEEL BECAME DIFFICULT TO TURN. THE DEALER REPLACED THE POWER STEERING RACK. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS”
— Owner report, NHTSA ODI #10641950

Read all complaints on NHTSA →

Brake pedal response and warning light activation

SERVICE BRAKES

2 NHTSA complaints · 2023-07 → 2024-07

“The contact owns a 2010 Mercury Grand Marquis. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed, however, the vehicle failed to stop as intended. The contact stated that he had both feet on the brake pedal, however the vehicle did not”
— Owner report, NHTSA ODI #11604771
“BRAKES: The Dashboard Brake Warning Lights are Illuminated most of the time. 1. The ABS warning Light is illuminated. 2. The Brake Warning Light is illuminated also. The Ford Dealership Service Dept cannot Fix it saying this is intermittent and attributed it to a loose wire”
— Owner report, NHTSA ODI #11531514

Read all complaints on NHTSA →

Issues on other model years

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 20, 2026. Investigation data refreshed Sep 20, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Raw data + downloads for this vehicle →

Essential maintenance

Critical for safety and preventing major damage

Engine Oil & Filter

Every 5,000 mi

On 2007 and later models, follow the Intelligent Oil-Life Monitor and change at least once a year. Earlier cars were specified at 5,000 miles under Ford's severe schedule, which covers most real driving. Given the age of these engines, 5,000 miles is the sensible ceiling either way.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

Tire Rotation

Every 5,000 mi

Rotate every 5,000 miles, and every oil change on the rear-drive Grand Marquis and Marauder, where the rear tires wear faster. Check sidewall date codes as well, since age retires tires on these cars before tread depth does.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

Brake Inspection

Every 7,500 mi

Inspect pads, rotors, hoses, and lines at every service. The Panther platform cars under the Grand Marquis are heavy, and rear rotors and parking brake hardware seize on cars that sit.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

Brake Fluid

Every 30,000 mi

Replace every 3 years. Ford did not always publish this as a hard interval, but water in old fluid is the reason aging calipers drag and ABS units fail.

Estimated cost — typical U.S. ranges

Dealer

~$180–$200

Shop

~$125–$140

DIY

~$10–$25

DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.

Timing Belt (Villager only)

Every 105,000 mi

This applies only to the 1993 to 2002 Villager, which uses a Nissan 3.0 or 3.3 V6 with a rubber timing belt due at 105,000 miles. Every other Mercury in this catalog uses a timing chain that is not a scheduled item. If you drive a Villager and cannot document the belt, budget for it now.

Estimated cost — typical U.S. ranges

Dealer

~$935–$1175

Shop

~$655–$825

DIY

Pro only

On interference engines, a snapped belt destroys valves. Worth doing on schedule. Bundle water pump + tensioner — labor is already there.

Important maintenance

Keeps your vehicle running smoothly and efficiently

Automatic Transmission Fluid

Every 50,000 mi

Drain and fill every 50,000 miles. Fluid type matters here: Mercon V for most of the lineup, Mercon LV on later models, and the Villager takes Nissan-spec fluid. The wrong fluid causes shudder and eventually failure.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

Spark Plugs

Every 100,000 mi

100,000 miles on platinum plugs. On the 4.6 V8 in the Grand Marquis, plugs left in aluminum heads for a decade can seize and break on removal. A shop that soaks them and works them out cold is worth the extra labor hour.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

Engine Air Filter

Every 30,000 mi

Replace every 30,000 miles, or sooner on dusty roads. Straightforward on every model in the lineup.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Coolant Replacement

Every 100,000 mi

Every 5 years on a car this age. Ford used a gold or yellow long-life coolant on later models and green on earlier ones. Have the shop pressure test at the same time. The plastic intake manifold crossover on some 1996 to 2001 4.6 V8s is a known coolant leak point.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

Rear Axle Fluid (rear-drive and 4WD models)

Every 100,000 mi

Applies to the Grand Marquis, Marauder, Mountaineer, and any four-wheel-drive model. Change every 100,000 miles, or every 30,000 if you tow. Limited-slip axles need the friction modifier added.

Estimated cost — typical U.S. ranges

Dealer

~$150–$195

Shop

~$105–$135

DIY

~$20–$50

Battery & Charging System Test

Every 25,000 mi

Test annually. On the Mariner Hybrid this is the 12-volt battery only. The high-voltage pack is a separate system and should be checked by a hybrid-trained shop.

Estimated cost — typical U.S. ranges

Dealer

~$225–$390

Shop

~$160–$280

DIY

~$130–$250

Most auto-parts stores test and install batteries free with purchase. Skip the dealer markup.

Fatal crash history & reported problems

Occupant deaths in fatal crashes (FARS)

54 crashes 1990–2024

How the 54 occupant deaths break down

38

driver deaths

16

passenger deaths

54

occupant deaths

Crash years covered: 1990–2024 This model year first appears in 2010 crashes. Older models have had more years on the road to appear in these crashes, so a higher count here does not by itself mean a vehicle is less safe.

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road. How to read this number

FARS 2024 data is an annual report file. NHTSA revises these records when the final file is published, so this count can change.

Why we show driver deaths too

Every vehicle has exactly one driver seat, so driver deaths line up fairly when you compare one model to another. Occupant deaths include passengers, so a three row SUV can show a higher number than a two seat car simply because it carries more people.

Both figures are plain counts, not rates. A rate would need to know how many of each vehicle are on the road, and that registration data is not public, so we do not publish rates or scores of any kind.

IIHS publishes driver death rates using this same driver only idea, paired with a registered vehicle years denominator we do not have. Their rates and these counts answer different questions, so do not read either number here as a safety rating.

Owner-reported problem signals

Separate from the federal fatality data above: complaints owners filed with NHTSA about this year and model. These are reports of problems, unverified, and are counted here only as signals.

6

complaints mentioning a crash

0

complaints mentioning a fire

Reviewed known issues for this vehicle·Open recalls for this vehicle

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2010 Mercury Grand Marquis reflects Mercury's published service intervals and the Intelligent Oil-Life Monitor system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.

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