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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 1 of 6)

problem #118

Dec 072016


  • 348,256 miles


The transmission downgears causing a loss of power while in motion. It occurs at low speed and at high speed. Alarming when traveling on an expressway at 55 mph.

- Miami Beach, FL, USA

problem #117

Dec 022016


  • 17,115 miles
The contact owns a 2012 Ford Mustang. While driving approximately 45 mph and merging onto an interstate, the vehicle failed to accelerate when the accelerator pedal was depressed. Also, the gear shifter failed when the contact attempted to shift into fifth gear. The vehicle was pulled over to the side of the road, restarted, and driven to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was notified. The approximate failure mileage was 17,115.

- Kings Port, TN, USA

problem #116

Nov 162016


  • 80,000 miles
Since I've bought this vehicle brand new I have had random issues with the car. First I've experienced a huge issue with the transmission, it makes a vibrating/shaking problem while driving on any street any speed. I have operated manual transmissions before and have never ran across this. No matter what gear or what condition it consistently does this. Ford dealer was to no help at all. At times while driving the vehicle will start to uncontrollably swerve and the traction control light starts blinking, this issue is unknown to me why this happens and has almost put me in an accident. Secondly, the entire ignition tumbler just popped out. I can pull the ignition out of the steering column.

- Prosperity, PA, USA

problem #115

Sep 012016


  • 80,000 miles


The contact owns a 2012 Ford Mustang. While driving various speeds, the wrench sensor and check engine sensor indicators suddenly illuminated. The vehicle also failed to accelerate normally. The cause of the failure was not diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The VIN was not available. The failure mileage was 80,000.

- Houston, TX, USA

problem #114

Oct 032016


  • 61,499 miles
2012 Ford Mustang transmission failure. At 61,499 the vehicle at a stop entering the roadway the vehicle lurched after a hard slam in the transmission the rpms went crazy and the vehicle slowly rolled into the roadway. The service wrench light up and the vehicle would only go 20 mph. Towed to dealer and told the repair would cost $5600 - $5900. Service did not notify us of the service recalls. Warranty ended at 60,000.

- Newton Falls, OH, USA

problem #113

Sep 012016


  • 34,400 miles
Ford refusing to accept recall for car; car has issue with transmission lead frame. The car will be driving and will "hard shift" randomly. The speedometer goes crazy and I have to slow down or turn off the car for it to go away. Recall exists for my models transmission lead frame ( I believe I meet all the requirements ) issued in April 2016, but it is not appearing for the VIN of the vehicle. If I do not meet the requirements it should be extended for my car.

- Bowling Green, KY, USA

problem #112

Sep 222016


  • 59,999 miles


The contact owns a 2012 Ford Mustang. While driving 60 mph, the vehicle downshifted independently. The vehicle was not diagnosed or repaired. The vehicle was included in NHTSA campaign number: 16V248000 (power train). The contact stated that the failure was intermittent. The manufacturer was not notified of the failure. The approximate failure mileage was 59,999.

- Houston, TX, USA

problem #111

Sep 212016


  • 35,111 miles
2012 Mustang only has 35,000 miles and water pump went out. Dealer states it is not covered under power train warranty! luckily it went out while parked in the garage at home and not on a trip! antifreeze was every where when I went to get in the car the next morning. Thankfully I saw it before our pets did!

- Pisgah Forest, NC, USA

problem #110

Aug 182016


  • 61,646 miles
The contact owns a 2012 Ford Mustang. While driving various speeds, the vehicle stalled without warning. The vehicle was towed to the dealer where it was diagnosed that there was a lead frame issue in the transmission. The vehicle was not repaired. The VIN was not included in NHTSA campaign number: 16V248000 (power train). The manufacturer was notified of the failure. The approximate failure mileage was 61,646.

- Alexandria, VA, USA

problem #109

Jul 062016

Mustang 6-cyl

  • Automatic transmission
  • 16,150 miles
The contact owns a 2012 Ford Mustang. While driving 70 mph in the left lane, the vehicle shifted into first gear and seized the rear tires while on an incline. The contact crashed into a guard rail on the driver side. The air bags deployed. A police report was filed that accused the contact of careless driving. The contact sustained bruising on the left side of the ribs, but medical attention was not required. The vehicle was taken to an independent mechanic and repaired. The failure mileage was approximately 16,150. Updated 10/28/16 the output speed sensor in the transmission from 70 mph in 6th gear to first and pushed the consumer down an incline into a guard rail. The consumer attached the recall letter to his complaint, regarding an issue with the output speed sensor. Updated 11/0/16.

- New Port Richey, FL, USA

problem #108

Sep 062016


  • 87,000 miles


You should know that the 2012 Mustang has a defective part called a throttle body sensor. Ford is aware it is defective because they were replacing this part free of charge prior to January 2015. Currently it is not under a safety recall but it most certainly should be. When you drive a car with this defect your can an accelerate, or decelerate, at its own will. It does not respond to the commands the driver gives. It just suddenly slows or speeds up as it likes. If you have not experienced this it may be hard to understand how unsafe this can be. It is not nan experience I recommend to anyone. Ford does not consider this a problem, but I do not feel safe in my car as a result. Try tooling along I-95 at 65 miles per hour and having your car suddenly slow and shudder almost to a times. This defect creates an unsafe driving condition that 100% unacceptable and you really should do something about it before someone, (like me) gets killed. I am sure someone has already had accidents because of this issue.

- Boynton Beach, FL, USA

problem #107

Jul 112016


  • 28,500 miles
My car has gone into 'limp' mode several times over the past couple of days. I took it to the dealer who advised me that the issue is the electronic throttle body, and it's not covered under the powertrain warranty. This part has been recalled for several other Ford model vehicles - but not the Mustang and they won't cover it. It'll cost me $570 to get the part replaced in my vehicle. This occurs while driving - at all different speeds - including going 65+ miles per hour on the highway.

- Omaha, NE, USA

problem #106

Jun 272016


  • miles
Takata recall. The contact owns a 2012 Ford Mustang. The contact received notification of NHTSA campaign numbers: 15V319000 (air bags) and 16V248000 (power train) and stated that the parts needed for the repair were not available. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect, VIN tool confirms parts not available.

- Indianapolis, IN, USA

problem #105

Apr 292016


  • 21,450 miles
I was driving down the street and when I shifted from 1st to 2nd the gear shifter got hung up and would not shift causing the car to downshift throwing me foward and hitting my head on the steering wheel.

- Shreveport, LA, USA

problem #104

Mar 272015


  • 54,343 miles
After waiting at a light in the left turn lane, I started accelerating from a complete stop, slowly into my left turn. At almost completion of the turn, my tachometer went from 3000 rpms to over 6000 rpms. The car had a sudden jolt at this moment and the rear wheels locked up. I went into a slide and the car slid across 2 lanes into a tree filled median. The car was totaled by the insurance company. There were no factors that could influence such a crash, as the road was dry, it hadn't rained. The road was well paved. Finally, speed wasn't a factor in the crash. At the time of the accident we had no idea what could have caused the downshifts in gears, however after a recent recall we realized what had happened.

- Hallandale Beach, FL, USA

problem #103

May 032016


  • 69,000 miles
While driving car suddenly loses power and shows wrench light and goes into limp mode. Trouble codes shown P2111 and P2112. This can happen any time during driving and has happened in heavy traffic potentially dangerous consequences.

- Charlotte, NC, USA

problem #102

Apr 262016


  • 18,500 miles
During initial acceleration after a left turn, shifting from 1st into 2nd gear, the vehicle shook wildly and violently rocked side to side and lost power. This was the second identical occurrence on city streets while accelerating out of left turns. On both occasions, had to make immediate moves to the right lane before power was restored. Based on other reporting and research, it appears to be an issue of throttle body failure. The vehicle has 18,500 miles and has a mt-82 transmission.

- Ocala, FL, USA

problem #101

Apr 152016


  • 86,000 miles
The contact owns a 2012 Ford Mustang. While the gear shifter was shifted into the neutral position, the front driver seat was lifted and collided with the parking brake. As a result, the parking brake was disengaged, the vehicle rolled away in the forward direction, and crashed into a fence. There were no injuries and a police report was not filed. The vehicle was not diagnosed nor repaired. The manufacturer was not notified of the failure. The failure mileage was 86,000.

- Glen Dale, CA, USA

problem #100

Mar 182016


  • 77,000 miles
While accelerating to get on the freeway, the transmission began to slip and the car began to jerk, then the transmission locked into 3rd gear, and would not shift out of 3rd gear until the vehicle was completely stopped, and the engine turned completely off. This is an intermittent problem, but an extremely dangerous one when it occurs. The Ford dealership says I need a recall notice before they can fix it. I'm out of work and don't have the funds to replace or repair the vehicle. Right now, we are driving it as little as possible.

- Oceanside, CA, USA

problem #99

Jan 142016


  • 49,000 miles
I have a 2012 Mustang GT with 6 speed manual transmission. I bought the car as a certified pre-owned car at about 2,500 miles. The car at that point had a dealer re-built transmission and my understanding is that it has 2nd through 6th gear replaced due to a manufacturers defect. Since that time I've had multiple transmission issues and the car now has about 49,000 miles. In early January, it became almost impossible to shift the car into 1st gear. It was very stiff and took a lot of force to get it into 1st. Shifting to 2nd gear resulted in a gear-mashing sound. 3rd gear sounded like a loud clunk. 4th through 6th gears were fine. These incidents became worse and almost caused me to have 2 different accidents by not being able to shift gears in traffic. I took the car to a Ford dealership in the North atlanta, ga area and they looked at the car. Their transmission tech believed it was an issue with the synchronizers. The tech did not believe he had the expertise to work on this issue and referred me to another Ford dealership. On 1/14/16 I took the car to the 2nd dealership and their tech agreed it was the synchronizers. That dealership took about 1 week to complete the repairs. After the repairs, the issue was not solved; loud sounds were coming out of the rear of the car. Over the past 2 weeks, they've ordered numerous replacement parts. As of today, 2/9/16, there are parts that are not available and are on national back order. The eta for the parts is now 2/24/16. I've read about similar issues other Mustang owners with this specific 6 speed transmission have had and personally can say it is a major safety warning for the driver. These cars should be recalled and new transmissions inserted as a whole unit vs. Installing multiple parts. I also believe that this issue will cause me to experience diminished value at resale.

- Alpharetta, GA, USA

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