general problems of the 2012 Ford Mustang - part 1

94 problems related to power train have been reported for the 2012 Ford Mustang. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Ford Mustang based on all problems reported for the 2012 Mustang.

1 Power Train problem

Failure Date: 06/14/2024

Transmission seems to lose power while driving, the car will barely pull itself but the rpms increase if I accelerate. This has happened several times while driving and occasionally there are dash lights lighting and speedometer/gas gauge doesn’t work but that doesn’t happen every time. When it happens I pull over and shut it down and restart and it runs correctly until it happens again! I do a lot of highway driving and the car just “falling flat” on a multi-lane highway at 70+ mph is definitely a safety issue! I have taken it to my local fastlane shop and the car was driven but didn’t malfunction at that time. He advised me to try to drive it there if it happened again, but I have never been close to the shop at the times it happens or they are closed. There is no advance warning, it happens at various speeds and even on takeoff after stopping for traffic lights. I once was pulling into traffic when it happened and didn’t have enough power to get to my lane before it fell flat! fortunately I could back up before getting hit by oncoming traffic.

2 Power Train problem

Failure Date: 03/15/2024

The contact owns a 2012 Ford Mustang. The contact stated while driving at undisclosed speeds, the vehicle started stalling. The contact pulled over to the side of the road; however, the vehicle failed to restart. The vehicle was towed to the dealer and was diagnosed with transmission range sensor failure. The vehicle was not repaired. The contact discovered NHTSA campaign number: 12v190000 (power train, exterior lighting) however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 180,000.

3 Power Train problem

Failure Date: 01/31/2024

Recently started having erratic shifting issues. Will downshift randomly out of nowhere while driving. Sometimes will just be stuck in 1st gear and won’t go anywhere until I pull over and shut off/start up again. Dangerous because I never know when it will do it. Might seem like everything is fine and then all of a sudden, it downshifts and loses power. Rpm’s rise but car has no power. Have to figure out how to get out of the way. As stated in Ford’s “ customer satisfaction program 16n02,” my 2012 has all the symptoms and I have dtc code p0731 but dealer refused to service my vehicle because it doesn’t show up with my VIN, even though it’s a 2012 and I clearly need my molded leadframe replaced.

4 Power Train problem

Failure Date: 11/10/2023

The transmission down shifted to first gear and the rear tires locked up. Skidding on the highway.

5 Power Train problem

Failure Date: 03/24/2023

The contact owns a 2012 Ford Mustang. The contact stated that while driving at 55 mph, the transmission unexpectedly downshift to first gear and the vehicle's rear tires seized. Additionally, the speed odometer failed, the air bag warning light , the traction control warning light, and the check engine warning were illuminated. The contact related the failure to NHTSA campaign number: 16v248000 (power train). The contact had a code reader, the code that was illuminated was p0720. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and referred the contact to file a complaint with the NHTSA hotline. The failure mileage was approximately 67,000.

6 Power Train problem

Failure Date: 11/13/2022

The rear end creaks and the 2nd gear grinds and pops out in the manual transmission.

7 Power Train problem

Failure Date: 10/31/2022

The contact owns a 2012 Ford Mustang. The contact stated that while driving at 60mph, the vehicle started to jerk and downshifted. The contact then stated that the speedometer and rpm’s started to fluctuate rapidly. All the warning lights was illuminated. As a result, the contact crashed into a metal road post and a tree. No injuries were sustained. No medical attention was required. A police report was filed. The vehicle was towed to an independent mechanic where it was diagnosed that the transmission seized and need to be replaced. The contact was informed by the mechanic of the NHTSA campaign number 16v248000 (power train). The vehicle was not repaired. The dealer was not notified of the failure. The manufacturer was notified however, the contact was unsuccessful. The 90,000.

8 Power Train problem

Failure Date: 07/22/2022

The contact owns a 2012 Ford Mustang. The contact stated while driving 60 mph, the rear wheels locked up and the speedometer displayed 0 mph. The vehicle started sliding sideways, causing the contact to almost lose control of the vehicle. The contact was able to veer to the side of the roadway. The contact then pulled into the nearest gas station, parked, and turned off the vehicle. The contact resumed driving; however, the failure reoccurred while driving 40 mph. The vehicle was towed to an unknown dealer who informed the contact that they could not diagnose the vehicle as the transmission specialist was not available. The contact drove to his residence. The vehicle was towed to a second dealer where it was being diagnosed. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and informed the contact that they could not assist as the VIN was not included in NHTSA campaign number: 16v248000 (power train). The manufacturer referred the contact to the NHTSA. The failure mileage was approximately 160,000.

9 Power Train problem

Failure Date: 06/22/2022

The contact owns a 2012 Ford Mustang. The contact stated that after starting the vehicle and shifting into the drive and reverse position the vehicle would no drive forward or backwards. The cause of the failure was not yet determined. The manufacturer was notified of the failure but no assistance was offered. The local dealer was not notified. The failure mileage was 130,000.

10 Power Train problem

Failure Date: 06/13/2022

Transmission unexpectedly slipped gear while driving at a steady pace in traffic. Caused rpms to rev high and loud, with inability to control speed suddenly. Had to quickly pull over and turn off car. After waiting a few minutes, was able to restart car and continue driving without issue. This has happened 3-4 times now. Took to my local mechanic who stated there is an issue with a sensor inside the transmission. Spoke to my Ford dealer I purchased the car from, and was informed that this is a known issue occurring with many 2012 form Mustangs, and they expect a recall to be announced shortly.

11 Power Train problem

Failure Date: 02/16/2022

Speedometer went down to zero going 55mph. Car thought it was going 0 mph, which causes transmission to go into first gear . Car reved awfully and had almost caused an accident both times this has happened to me. Scanned the codes and it gives me p0722, common problem with these exact year Mustangs and many other vehicles. Dealership denied my warranty to replace molded lead frame in transmission which causes this issue. This has already been a warranty extension and recall on many of these exact same cars and I do not know why mine doesn’t qualify. This is a huge safety issue and I’m left to fend for myself according to Ford even though it is their products fault.

12 Power Train problem

Failure Date: 08/03/2021

The transmission is leaking between where engine and transmission meet and it will not go into gears correctly.

13 Power Train problem

Failure Date: 07/23/2021

Car stopped accelerating twice on my Mustang 7/23/21. First time on the way to work in traffic and then again when I was going to lunch around 11:30.

14 Power Train problem

Failure Date: 07/12/2021

Granddaughter driving to work this morning when car lost throttle response. Was on the highway in traffic, had to maneuver to the side of the road and turn car off, then wait awhile and restart. Made it to work without any more occurrences yet. Car not scanned for codes yet. Yes the wrench came on but went off after restart.

15 Power Train problem

Failure Date: 03/16/2021

Ias I was driving on the highway and let off the gas, the transmission downshifted suddenly to a lower gear causing the engine to rev up to 4000 rpm.

16 Power Train problem

Failure Date: 07/06/2020

While driving the car shifts down into first gear on its own while the dash goes blank and the speedometer stops working. It will also show a wrench light at times.

17 Power Train problem

Failure Date: 12/10/2019

Air bag recall and iam having a code for electronic throttle body control issues that should be a recall from what I heard but my local Ford dealer said it wasnt.

18 Power Train problem

Failure Date: 11/11/2019

Tl-the contact owns a 2012 Ford Mustang. The contact stated that while driving approximately 40 mpg, the vehicle downshifted to approximately 5 mph. The wrench indicator illuminated. The vehicle was taken to the dealer koons Ford, 3111 automobile blvd, silver spring, MD 20904, they determined that the transmission had to be rebuilt or replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 44,000. VIN unavailable. . Bp.

19 Power Train problem

Failure Date: 07/10/2019

When trying to accelerate the car, it sometimes slows down instead of speeding up.

20 Power Train problem

Failure Date: 05/30/2019

Tl the contact owns a 2012 Ford Mustang. While driving 55 mph, the vehicle downshifted into first gear and decelerated to approximately 15 mph without warning. Fowler Ford (located at 3400 s sheridan rd, tulsa, ok 74145, (918) 346-6500) was contacted and an appointment was scheduled to have the vehicle diagnosed. The vehicle was not diagnosed or repaired. The vehicle was not included in NHTSA campaign number: 16v248000 (power train). The manufacturer was not informed of the failure. The approximate failure mileage was 101,000.

21 Power Train problem

Failure Date: 05/27/2019

My Mustang has been doing this more frequently now, where I'm driving highway speeds and the transmission suddenly downshift to low gear from high gear. This afternoon it almost caused me to crash on my way home from work on the freeway. This is completely unacceptable and life threatening. I went on google, to look up if others are having this same issues and I came across a lot of Mustangs of this year have the same exact issue. Matter of fact, Ford is aware of this issue but why hasn't a recall been put out to fix this transmission problem. A lot of lives are at danger and accidents to occur due to this problem.

22 Power Train problem

Failure Date: 03/15/2019

I was driving a county back road with nobody in front or behind me. The vehicle is an automatic and it was in overdrive as my speed was approx. 60 mph. Without warning and without me touching the shifter, the vehicle suddenly downshifted into 1st gear locking the rear wheels until my speed was reduced and they began to roll again. I never lost control of the vehicle but it scared me to death! there was light up wrench symbol error warning. The dash turned red and all speed, fuel level and mileage was blank. I put the vehicle in park and made sure it was engaged. I pulled the emergency brake on and shut the ignition off. Checked the transmission fluid which was fine. My Mustang was made in January 2012 at the flat rock assembly plant. As I began my research, I found the Ford recall 16s19. Which described exactly what happened in my situation. When the dealership called Ford for approval, they said my vehicle was not affected because my VIN was not showing it as an exposed vehicle. It manufacture date, assembly plant, transmission type all match but somehow my VIN was not showing. I paid $950 out of my own pocket for the exact repair this recall called for. Which corrected the issue. How in the heck is my car not covered when I know it had the same transmission molded cover issue. . . Please help me. I can provide my repair records to show it was exactly the repair procedure the recall recommended.

23 Power Train problem

Failure Date: 07/17/2018

Tl-the contact owns a 2012 Ford Mustang. The contact stated that while driving at 55 mph the speedometer would be on 0 and the breaks seized. The contact then turn the vehicle off and restarted which in result began to work properly. The bcm light illuminated. The vehicle was then taken to the dealer gullo Ford 925 I-45 s, conroe TX 77301 (281)-367-0000 where the vehicle was then diagonsed with molded lead frame. The manufacturer was made aware of the failure but no further action were taken. The vehicle was not fixed. The failure mileage was 84,000.

24 Power Train problem

Failure Date: 06/17/2018

Tl the contact owns a 2012 Ford Mustang. While driving approximately 40 mph, the vehicle decelerated without warning. The vehicle was pulled over to the side of the road and restarted. The contact called cavalier Ford chesapeake square at 833-858-5801 (located at 4021 portsmouth blvd. , chesapeake, va 23321) and was informed that there was no recall related to the failure. The manufacturer was not made aware of the failure. The failure was not diagnosed or repaired. The failure mileage was approximately 44,000.

25 Power Train problem

Failure Date: 03/18/2018

Tl the contact owns a 2012 Ford Mustang. The contact stated that on several occasions while driving at approximately 60 mph, the accelerator pedal was depressed however, the vehicle hesitated to accelerate and downshifted. The vehicle was not diagnosed or repaired. The dealer was not contacted. The contact referenced NHTSA campaign number 16v248000 (power train). The manufacturer was not notified of the failure. The approximate failure mileage was 60,000.

26 Power Train problem

Failure Date: 12/15/2017

Tl the contact owns a 2012 Ford Mustang. While driving 45 mph, the accelerator pedal was depressed and the vehicle jerked hard to the left for almost a minute before stopping. The traction control indicator flashed on and off and the abs engaged. The vehicle was taken to oxmoor Ford Lincoln (100 oxmoor ln, louisville, ky 40222, (502) 426-2500), but no diagnostic failure codes were found. The vehicle was not repaired. The manufacturer was notified and a case was opened, but no further assistance was provided. The approximate failure mileage was 73,000.

27 Power Train problem

Failure Date: 11/01/2017

Over the past couple of weeks, the automatic transmission has had a mind of its own. It has downshifted into first gear on its own from different gears, it has stayed locked in gear on several gears and it has stayed in a high gear while stopped, so it is very slow leaving a light. This happens intermittently, but it has happened approximately 6 times over the past couple of weeks. No trouble codes or lights (mil or wrench) have been thrown or lit up during the incidents. The car seems to right itself after a few minutes. Happens mostly when the car has been sitting for a long period and is cold. Took the car to glenn Ford in nicholasville, ky and explained what the vehicle was doing and if it was related to the recall that they performed (16n02/16s19) on the car back in Feb 2017. They brushed it off and said it would be $110 to look at the car. We said fine. They have held the car for 6 days and said they drove it at least 36 miles and "nothing happened". They said there are no dtc/fault codes, so the car is perfectly fine. They said they will not perform the molded leadframe repair of the recall because there are no fault codes. I called Ford customer service complaining of the situation because the info on the notice says either a fault code shows up or the customer "reports an intermittent unintended downshift into first gear". Well, that is exactly what we reported before we even realized anything about the leadframe part of the recall. Both the dealership and Ford have refused to fix the vehicle unless there is a default code/dtc showing. They want us to drive the car until a fault code shows (thus possibly endangering our lives) and then they will look at it again. Doesn't mean fix it, just look at it again for another $110. This is completely out of line. Ford won't even fix it under their own recall instructions!!!! and the car qualifies!.

28 Power Train problem

Failure Date: 08/17/2017

I was driving on interstate at 70mph and the wrench light came on then the check engine light,airbag warning light all came on the speedometer stopped working, the tire sensor went crazy , car lost all speed in heavy traffic was not involved in accident got to side of road turned car off restarted it was fine for a few miles then everything happened again. Called Ford and they had me take it to dealer for check was told it is the leadframe in the transmission and Ford has recalled other Ford Mustang vehicles same year as mine for same problem but mine is not included this is a safety hazard for anyone who has one needs to be checked in all the cars.

29 Power Train problem

Failure Date: 12/07/2016

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.

30 Power Train problem

Failure Date: 12/02/2016

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.

31 Power Train problem

Failure Date: 11/16/2016

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.

32 Power Train problem

Failure Date: 09/22/2016

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.

33 Power Train problem

Failure Date: 09/21/2016

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!.

34 Power Train problem

Failure Date: 09/06/2016

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 stop. . . Fun 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.

35 Power Train problem

Failure Date: 09/01/2016

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.



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