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really awful
Crashes / Fires:
7 / 0
Injuries / Deaths:
3 / 1
Average Mileage:
21,928 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 Ford Mustang drivetrain problems

drivetrain problem

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2012 Ford Mustang Owner Comments (Page 3 of 6)

« Read the previous 20 complaints

problem #78

Apr 112012


  • 5,557 miles


Transmission pops out of gear at 1st and 4th gear. Transmission gears grind at random times when shifting into gears. Requires clutch to be pressed at least 1 second to be pressed and additional effort in order to shift into gear after grinding to make sure that the gears are into place. Makes driving uncomfortable and raises safety concerns while driving on the road. I was able to verify the issues with the dealership and took 40 days to complete repairs. The problem still exists at random times when driving. Currently dealing with lemon law case against Ford for a replacement. Ford refuses to replace my vehicle. This is the one of 2 defects with my car. The second issue is with the rear axle differential (ODI: 10556822). The second also has also been verified by Ford dealer and repair attempts were made. Problem still exists. Raises major safety concerns while driving on high rate of speed on the road since my car is a rwd and the defect is in the rear axle differential.

- Fort Huachuca, AZ, USA

problem #77

Nov 212012

Mustang 6-cyl

  • 15,776 miles
After driving for a total of 6 hours with 1 stop at a rest area after the first 3 hours of driving, I made another stop to refuel. As I was exiting the freeway and made the first turn at 5-10 mph, my vehicle made a loud metallic cranking noise followed with strong vibrations throughout my car. After refueling, I returned to the freeway. It seemed that the noise and vibration only appears when making left/right turn at low speed (5-10 mph) after a continuous non-stop driving of at least 2-3 hours. I took my car to the nearest Ford dealer (jim wilson motors) and their technicians isolated the noise and vibration to the rear axle differential.

- Fort Huachuca, AZ, USA

problem #76

May 202011

Mustang 8-cyl

  • 5,447 miles
Car will not shift into gears. The vehicle will not allow me to enter the gear I desire, causing the car to suddenly loose momentum leaving me in a very dangerous situation in traffic. This has happened to me numerous times crossing intersections and entering the highway almost causing an accident. The car has a manual transmission. I have had ongoing issues with this vehicle since I purchased it, and I cannot drive the car with the confidence that it is safe.

- Boca Raton, FL, USA

problem #75

Aug 252013

Mustang 6-cyl

  • 39,000 miles


My daughter's 2012 Mustang would lose power at around 40 mph when accelerating. The engine light would light up and the car would idle very rough when car was stopped. Problem was diagnosed as a throttle being stuck open and the throttle housing was replaced which solved the problem.

- Boerne, TX, USA

problem #74

Sep 112013


  • 33,300 miles
The contact owns a 2012 Ford Mustang. The contact stated while driving approximately 55 mph the rpms increased and the vehicle failed to accelerate into fifth gear without warning. The vehicle was taken to a dealer who stated there was no failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure and current mileage was 33,300.

- Norfolk, VA, USA

problem #73

Jan 292013

Mustang 6-cyl

  • 29,000 miles
TL- the contact owns a 2012 Ford Mustang. The contact stated that while driving approximately 55 mph the vehicle revved up and would not accelerate into fifth gear. The failure occurred intermittently at different speeds. The manufacturer was made aware of the failure. The vehicle was not repaired. The approximate failure mileage was 29,000.

- North Wales, PA, USA

problem #72

Oct 152012

Mustang 8-cyl

  • 7,000 miles


The contact owns a 2012 Ford Mustang. The contact stated that while driving 50 mph and attempting to shift gears, the vehicle grinded while shifting. The vehicle was taken to the dealer for diagnosis but they were unable to duplicate the problem. The vehicle was not repaired and the manufacturer was notified, but the problem persisted. The approximate failure mileage was 7,000.

- Pinellas, FL, USA

problem #71

May 242012

Mustang 6-cyl

  • 73 miles
Transmission whine/grating with clutch engaged traveling at speed. Frequent grinding heard/felt going into 3rd and 4th gears mostly when cold. Difficulty shifting into some gears. Clutch will not reengage over approx 4,000 RPM.

- Randolph, MA, USA

problem #70

Mar 192013

Mustang 8-cyl

  • 17,274 miles
Vehicle turned right from a stop, onto a Texas state highway. Shifting manually from first gear to second gear, the vehicle went out of control (apparently due to loss of traction because there was a coating of fine sand on the tires). The vehicle crossed 3 lanes of traffic, and in doing so, went into a roll-over, reports stating the vehicle rolled 4 times, and striking a utility poll that stopped the roll. The utility poll was struck on the passenger side, by the windshield pillar, causing terrific damage and cave in. The utility poll was broken, almost snapped in half (the utility pole was replaced). While there was no passenger other than the driver, the only airbag in the car that deployed was the driver side curtain. The severity of the crash would indicate that all of the airbags should have deployed, to shield the driver and potential passengers. Driver also went into the windshield, the steering wheel bag not deploying. Potential back seat riders should be protected in such a devastating crash as well. Photo evidence would indicate all bags should have deployed. The driver had not disengaged passenger bags (driver/owner doesn't even know how to disengage passenger bags). On one occasion a few weeks before the crash, an info light message came on for a few seconds while operating the car, stating the passenger side airbags were off. I couldn't figure out why. I had not turned them off. I stopped the car and turned off the engine. After restarting the car the message had disappeared. Major damage to the degree my car was destroyed should deploy all airbags.

- Houston, TX, USA

problem #69

May 012013


  • 6,012 miles
Gear grind in 5th, this transmission is inconsistent. Inconsistent engagement into 5th.

- Central Islip, NY, USA

problem #68

Apr 052013

Mustang 6-cyl

  • 16,000 miles


Vehicle has continual issues going into 1st and 2nd gear. Manual transmission. After 11 months of this issue the clutch burned out, I was in the middle of the intersection. I am not stuck with a repair bill because Ford or the dealership will do anything.

- Urbandale, IA, USA

problem #67

Mar 052013

Mustang 8-cyl

  • 4,200 miles
I had two incidents of unintended acceleration in my 2012 Ford Mustang GT automatic transmission premium pkg. These two incidents occurred on the same day March 5, 2013. The first was after I picked up my car from its garage of several weeks at lunch and drove back to work. I had gone about two blocks from my garage and was braking to slow down to make a right hand turn when the car down shifted and accelerated by itself while I was pressing the brake pedal. I was going about 5 mph when this all started. It lasted for about 3 seconds and then the car released and stopped the acceleration and I was able to slow down and make my right hand turn. I continued on back to work and complained to my co-worker about what had happened and how I was beginning to become afraid of the Mustang. He is my witness about this happening before the second incidence occurred. Later on I left work to go home and on the way home it happened again a second time only this time much stronger. I was in bumper to bumper traffic going under interstate hwy 820 bridge in fort worth to go under the bridge after going through a traffic light on each side to make a left hand turn to get on the West bound IH820. Well because of the traffic you have to stop at one light on the South side of the bridge and then again stop to get through the second light on the North side of the bridge to turn left. Anyway there was a large semi-truck hauling rocks in front of me and I stayed back about 60 feet so as not to get the rocks on new car. He went down to the other light which was red and stopped I was going about 5 mph again and started to brake way back from him because of the rocks and the red light. The car again accelerated on its own while I was pressing the brake pedal. I fought it the whole way but it would not let release till 15 feet from truck. I then crashed. I could have been killed!

- Fort Worth, TX, USA

problem #66

Jan 242013


  • 3,500 miles
Shifting into 1st, 2nd and 3rd gears has become more difficult over the past few months. Sometimes it grinds, and sometimes it won't even go into gear. I have been driving manual transmission cars for 15 years, and something is really wrong with this transmission that needs to be fixed. I had the vehicle at the dealer 3/4/2013, and all they did was change the transmission fluid and said it was resolved. Drove it home and the problem was not resolved, as it is still difficult to shift gears. Ford needs to come up with a fix immediately and fix our Mustangs.

- Happy Valley, OR, USA

problem #65

Oct 282012

Mustang 8-cyl

  • 16,525 miles
(2nd owner) ever since I purchased this vehicle I have had nothing but problems with the shifter/ shifter linkage. The vehicle misses shifts and won't engage mainly during 2nd-3rd shifts. For a performance automobile this is the worst clutch and shifter combination I have ever seen. Shifter constantly will not engage and on a number of occasions has popped out of gear due to not being fully engaged. Linkage sounds clunky and is not smooth in any way.

- Virginia Beach, VA, USA

problem #64

Dec 012012


  • 38,000 miles
V6 automatic shifting problems. Vehicles transmission has hesitation upon acceleration. Often while merging onto highway, or changing lanes transmission does not engage. Upon acceleration RPM's will rise but vehicle does not increase speed. Ford service department says vehicle is operating as it should.

- Tiverton, RI, USA

problem #63

Jan 172013

Mustang 8-cyl

  • 22,000 miles
Transmissions 3rd gear synchronization plate failed. The car is locked out of that gear.

- Groves, TX, USA

problem #62

Jun 012012

Mustang 6-cyl

  • 31,000 miles
I drive a 2012 V6 Mustang 2dr coupe base.I was merging into traffic onto I40/I85 when tried go to second gear when it would not go. I tried forcing it but was afraid I would snap the shifter shaft so I was forced to slow and then it finally went into 2nd gear. This was the other day 1/12/13. So this is not first time it has happened it has happened several times same thing when you get on the pedal this happens and on occasion it will go into 2nd but will grind.this has happened maybe 10-20 times both grinding and just not going into 2nd gear. So I know this is an ongoing problem with Ford and the Mustangs of 2011 and 2012 from other Mustang owners I have talked to either on forums or in person. When I attended Mustang week in myrtle beach SC in 2012 several people had this issue as well. So what can I do? the dealers that I have brought this up to in my area have told me it was the way I push in clutch ( classic response) I find hard to believe since I am 34yr and have had 9 vehicles in my life all manuals and I shift all the same through every gear. My hands are tied cause now my warranty is out. I have my 4yr son who rides with me alot and I am a daily driver of this vehicle and I am concerned of my sons and my safety. Please help.

- Burlington, NC, USA

problem #61

Dec 192012

Mustang 8-cyl

  • 22,689 miles
The problem with the vehicle started when I tried to start it. When I turned the key the vehicle took a few seconds longer than usual to start up. As I began driving down the highway my vehicle wouldn't shift gears out of 40mph and caused the engine to have high RPM. When I turned off the engine at a gas station and tried to start it back up. Vehicle would not start and I had to get it jumped. Vehicle still doesn't shift gears. This vehicle is only 1 year and 1 month old since I purchased it.

- Savannah, GA, USA

problem #60

Feb 192012

Mustang 8-cyl

  • 10,000 miles
My nephew lost control of his six speed 2012 Mustang while driving on mountain road and was killed. He was downshifting into left corner or road then road turns right uphill (like an "S" shape). Perhaps the power train had an issue.?

- Simi Valley, CA, USA

problem #59

Jul 102012


  • 150 miles
Today is Nov. 16, I have my car at the dealer now because it won't shift into 3 gear at red line and the fifth gear syc is out, Ford says they can fix problem, there pulling the wool over your eyes, this is the second time I had my car at the dealer, they put another clutch pedal and spring in it to solve 2 to 3 shift. Took it out same problem, bought a expensive replacement shifter top brand still has problem, so it has to be the tranny. Don' let them bs you there is a manger problem when entering traffic or trying to pull out to pass this tranny won't respond and your in trouble with the other there fixing the syc and the 2 to 3 shift again, somebody has to investigate what is Ford hiding. Look on the web sites there are hundreds if not thousands of complaints of the same 6 speed, thanks for letting me blow of some steam, [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Glen Rock, PA, USA

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