Which parts fail
Components named in complaints (automatic and manual transmissions, CVT, axles, driveshaft, 4WD/AWD).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2017 Ford Mustang owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2017 Ford Mustang. The contact stated that while driving at an undisclosed speed, the vehicle was stalling with the powertrain malfunction light illuminated. The contact stated that the vehicle would no longer accelerate while depressing the accelerator pedal. The vehicle had not lost motive power but was inoperable. The vehicle was towed to an independent mechanic where it was diagnosed that the transmission needed to be replaced because there was no transmission fluid in the transmission. The contact stated that no warning lights were illuminated. Additionally, the contact was informed that two unknown cylinders also needed to be replaced. The vehicle was then towed to two other independent mechanics where the previous diagnosis was confirmed. The vehicle was not repaired. …
The contact owns a 2017 Ford Mustang. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power while driving sluggishly. The check engine warning light was illuminated. The vehicle was taken to the dealer, who determined an increased bore size for cylinder #2, which was allowing an abnormal amount of coolant to flow into the engine. The vehicle was not repaired. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was 101,000.
Car has a 6-speed manual transmission, which means it has a clutch and clutch pedal. The clutch pedal began squeaking when letting it up after engagement. Then it stopped depressing the plunger on the clutch engagement sensor preventing the clutch pedal to be depressed 100%. After inspection it was revealed the clutch pedal pivot point at the top where the pivot collar holds the pedal in alignment with the pedal assembly with the brake pedal is cracked. This forces the pedal to the left and out of alignment, which prevents the pedal from engaging properly when pressed, and fails to depress the pedal switch. This pivot connection is made via a weld where the collar goes through the pedal arm. This weld is insufficient and has cracked most of the way around the collar. …
June 2022, approx. 53000 miles, misfire codes. Replaced spark plugs. Codes continued intermittently. January 2023 car was inspected due to heater inop at 61228 miles. Coolant low and misfires. No repairs, just coolant added. I topped off coolant 3X until April of 2023 at 61631 miles, white smoke and damp smell from exhaust along with continuing misfires. Dealer stated water intrusion, engine and turbo bad. No warranty, less than 50% of cost covered by manufacturer. June 2023 car was returned to me. Back at dealer 4 days later, 61691 miles, rear end shudder. Bad rear differential. Manufacturer covered less than 50% of cost. All maintenance was performed at or earlier than warranty required including rear differential service at 33283 miles with Ford.
I was driving at 60mph when the transmission automatically downshifted to second gear while all sport modes were OFF and T/C was ON. Car was simply on drive, and after merging onto freeway and had completely let go of the accelerator pedal the car downshifted by itself no down shifting was done by the paddles. This is the 4th time my car does this and I have to upshift as fast as possible because RPMs go up as high at 7000. i've made some reading and looked at some TSBs looks like this issue has happened to other owners who their vehicle is equipped with the 6R80 transmission.
My 2017 ford mustang gt has 27,000 mile on it. I was driving home from work and just went through a traffic circle and I was in 1gear when I went to shift I could not shift. The clutch blew apart while driving normal and it is the factory clutch. Pictures of the equipment involved are available and show no sign of wear or abuse just that it separated. This could have been a major is had I been on a major highway when it happened
While driving home on the freeway, the weld where the clutch pedal joins the pedal assembly failed. This gave the pedal excessive lateral play and created a situation where I was intermittently unable to disengage the clutch and change gears due to the pedal binding or obstruction along its travel.
Manufacturer defect? Use of plastic Valve covers and insufficient # of bolts used. Oil leak from left side of engine, causing burning of oil. Potential fire hazard. Only ~21,000 miles on 2017 Mustang GT Premium; bought new. https://www.youtube.com/watch?v=xtd4CQzDMJE
I was driving at 70mph and the steering wheel locked without any error showing on the dashboard. Ford could not find a fault when it was connected to a computer. Later after a test drive they confirmed it was the Electronic power assisted gear assembly fault.
Hello! Ford shelby gt 350's have a fatal engine flaw that will lead to the death of many owners. There is a known issue where the oil filter simply falls off the engine because the engine is prone to a ton of vibration. As a result, oil is spilled everywhere and can result in the loss of control of the vehicle due to oil hitting the tires. This has happened to me twice now, thankfully the first time I noticed it while in the garage and thus there was no risk while driving. However the second time, which occurred last night, was while I was on a windy mountain road. I am lucky to be alive right now to write NHTSA this letter. Right before the car completely lost oil pressure, due to the filter falling off, I noticed that the handling was off, almost as if the car had a low/flat tire. …
Transmission complaints in other Mustang years
Frequently asked questions
How common are transmission problems on the 2017 Ford Mustang?
NHTSA has 22 complaints about the transmission & drivetrain of the 2017 Ford Mustang, 8% of the model year's 268 complaints. The component named most often is clutch assembly › pedal/hand lever(motorcycle) (1 mentions).
Is there a recall for 2017 Ford Mustang transmission problems?
No. NHTSA lists no transmission & drivetrain recall for the 2017 Ford Mustang, though it has 6 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2017 Ford Mustang transmission problems start?
Half of the complaints with a recorded mileage happened before about 38,000 miles, and 33% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 0 injuries to transmission & drivetrain problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.