brake booster
2012 Lincoln Mkx
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2012 Lincoln Mkx do not stand out strongly from the model-year median of 75.
About this comparison →How this year compares
Owner complaints by model year
Compare all Mkx years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
61 reports with mileage · 23 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Service Brakes. Review the 26 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 17 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
7 reportsThe contact owns a 2012 Lincoln MKX. The contact stated that the brake pedal would depress to the floorboard without warning. The contact took the vehicle to the dealer and the brake master cylinder was replaced; however, the failure persisted. The vehicle was taken back to the dealer where it was then diagnosed with a defective…
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The contact owns a 2012 Lincoln MKX. The contact stated that the brake pedal would depress to the floorboard without warning. The contact took the vehicle to the dealer and the brake master cylinder was replaced; however, the failure persisted. The vehicle was taken back to the dealer where it was then diagnosed with a defective ABS system; however, the part for the repair was on backorder. The manufacturer was also notified of the failure and provided the same information as the dealer. The contact was referred to the NHTSA Hotline for assistance. The vehicle was not repaired. The failure mileage was approximately 130,000.
The contact owns a 2012 Lincoln MKX. The contact stated while driving approximately 45 MPH, there was a brake booster fault and the contact depressed the brake pedal to the floor. There were no warning lights illuminated. The vehicle was taken to a local dealer who diagnosed the failure with the brake booster. The vehicle was no…
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The contact owns a 2012 Lincoln MKX. The contact stated while driving approximately 45 MPH, there was a brake booster fault and the contact depressed the brake pedal to the floor. There were no warning lights illuminated. The vehicle was taken to a local dealer who diagnosed the failure with the brake booster. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 138,300.
The contact owns a 2012 Lincoln MKX. The contact stated while driving approximately 35 MPH, the brake pedal became firm and difficult to depress. There were no warning lights illuminated. The vehicle was taken to the local dealer, who diagnosed the failure to be brake booster and brake master cylinder failure. The vehicle was no…
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The contact owns a 2012 Lincoln MKX. The contact stated while driving approximately 35 MPH, the brake pedal became firm and difficult to depress. There were no warning lights illuminated. The vehicle was taken to the local dealer, who diagnosed the failure to be brake booster and brake master cylinder failure. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 67,000. The contact stated the brake booster was replaced.
Driving late at night from dinner, brakes failed. Took MKX to servicing dealer, replaced m/cyl problem still there, order brake controller two weeks ago, part on shortage no due date. Part fit alot of models and years. FMC should pay for parts, very safety failure, we live in rural area and have the car serviced at Ford/Linc…
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Driving late at night from dinner, brakes failed. Took MKX to servicing dealer, replaced m/cyl problem still there, order brake controller two weeks ago, part on shortage no due date. Part fit alot of models and years. FMC should pay for parts, very safety failure, we live in rural area and have the car serviced at Ford/Lincoln. no warning lights
HIT POTHOLE OR DEPRESSION IN ROAD, BRAKE PEDAL GOES TO FLOOR. VERY MUSHY. HARD TO BRAKE. SOMETIMES IT COMES BACK AFTER SEVERAL PUMPS SOMETIMES IT DOESN'T. TOO IN FOR REPAIR TO FORD AND LINCOLN DEALER, 2 SEPARATE OCCASIONS. THEY COULD NOT FIND ANY FIX SINCE ISSUE WAS NOT DUPLICATED. LAST EVENT ALMOST HIT ANOTHER CAR, HA D TO TUR…
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HIT POTHOLE OR DEPRESSION IN ROAD, BRAKE PEDAL GOES TO FLOOR. VERY MUSHY. HARD TO BRAKE. SOMETIMES IT COMES BACK AFTER SEVERAL PUMPS SOMETIMES IT DOESN'T. TOO IN FOR REPAIR TO FORD AND LINCOLN DEALER, 2 SEPARATE OCCASIONS. THEY COULD NOT FIND ANY FIX SINCE ISSUE WAS NOT DUPLICATED. LAST EVENT ALMOST HIT ANOTHER CAR, HA D TO TURN OUT OF THE WAY. SOMETIMES IT HAPPENS ON ROUGH ROAD SURFACE, WASHBOARD SURFACE. HAS HAPPENED AT LEAST A DOZEN TIMES THE PAST 6 MONTHS. LATEST 12/15/2019.
TL* THE CONTACT OWNS A 2012 LINCOLN MKX. WHILE DEPRESSING THE BRAKE PEDAL TO THE FLOORBOARD, THE VEHICLE FAILED TO STOP. THE DRIVER WAS ABLE TO COAST TO THE SIDE OF ROAD. THE VEHICLE WAS LATER TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE POWER BRAKE BOOSTER NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE…
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TL* THE CONTACT OWNS A 2012 LINCOLN MKX. WHILE DEPRESSING THE BRAKE PEDAL TO THE FLOORBOARD, THE VEHICLE FAILED TO STOP. THE DRIVER WAS ABLE TO COAST TO THE SIDE OF ROAD. THE VEHICLE WAS LATER TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE POWER BRAKE BOOSTER NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE VEHICLE WAS NOT TAKEN TO A DEALER. THE CONTACT STATED THAT SERVICE BULLETIN NUMBER: 13N02 WAS ISSUED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND DID NOT ASSIST. THE FAILURE MILEAGE WAS APPROXIMATELY 137,000. *DT *DL
Official recalls
114V393000 · Power Train:axle Assembly:axle Shaft
Jul 2, 2014
Ford Motor Company (Ford) is recalling certain model year 2012-2014 Ford Edge and Lincoln MKX vehicles manufactured September 2, 2010, to November 30, 2013; 2013-2014 Ford Taurus and Lincoln MKS vehicles manufactured August 25, 2011, to November 30, 2013; and 2013-2014 Ford Flex and Lincoln MKT vehicles manufactured September 12, 2011, to November 30, 2013. In the affected vehicles, the halfshaft retention circlip may not have been properly installed, and as a result, the halfshaft may move outward and disengage from the linkshaft while driving and without prior warning.
Consequence & remedy
Consequence: If the halfshaft and linkshaft become disengaged while driving, power will no longer be transmitted to the wheels, increasing the risk of a vehicle crash. Additionally, if the parking brake is not applied before exiting the vehicle, the vehicle may roll away despite the transmission being placed in 'Park', increasing the risk of injury to exiting occupants and bystanders.
Remedy: Ford will notify owners, and dealers will inspect the vehicles to make sure that the halfshaft is properly retained. If it is not, dealers will replace the linkshaft and also replace the halfshaft if it shows evidence of spline damage, free of charge. The recall began on August 4, 2014. Owners may contact Ford customer service at 1-800-392-3673. Ford's number for this recall is 14S10.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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