705 of the 11,737 complaints filed about the Ford Mustang are about the braking system — 6% of everything owners reported. The worst model year for it is 2000.
705
Complaints
6%
Share of all complaints
143
Crashes
6
Fires
SERVICE BRAKES
I am experiencing the same issues as NHTSA 22V-011 where the brake pedal stop bumper had disintegrated, causing continuous brake lights and a potential rollaway risk
NHTSA complaint #11752628 — an unverified report by a vehicle owner.
SERVICE BRAKES
Breaks went out
NHTSA complaint #11750914 — an unverified report by a vehicle owner.
SERVICE BRAKES
Breaks went out
NHTSA complaint #11750915 — an unverified report by a vehicle owner.
SERVICE BRAKES, HYDRAULIC
The contact owns a 2020 Ford Mustang. The contact stated while the vehicle was parked, the contact noticed smoke coming from underneath the hood. The vehicle was unoccupied. The contact inspected the vehicle. The contact stated that the fire was about three inches from the back of the engine, close to the fire wall. The contact used a nearby fire extinguisher and extinguished the fire. The contact stated that upon further inspection of the vehicle, the contact noticed brake fluid on the ground underneath the vehicle. The vehicle was towed to the dealer, however the diagnostic test had not been completed. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that the failure was a known failure with the vehicle. The manufacturer was not made aware of the failure. The failure mileage was approximately 41,331.
NHTSA complaint #11749075 — an unverified report by a vehicle owner.
SERVICE BRAKES
Break bumper disintegrated, causing the rear bites to stay on and the automatic transmission to be able to switch from Parker to drive causing the vehicle to be able to roll and possibly crash
NHTSA complaint #11747552 — an unverified report by a vehicle owner.
SERVICE BRAKES
The 2026 Ford Mustang was off and rolled away out of the driveway colliding with tree, The incident was caught on my Ring Camera, the electrical system vehicle had acting strangely and kept giving warning the trunk was open and had to go open and close it multiple times. once i parked the vehicle at my house the car rolled away, according to Ford manual the vehicle is equipped this is a failure to the involves a critical safety system (Automatic Return to Park) that is explicitly designed to prevent exactly what happened, you should treat this as a serious safety defect. As of May 2026, Ford has already issued a major recall (Recall 25C69) for rollaway risks in other 2026 models like the Mustang Mach-E and Maverick due to a software fault in the "Integrated Park Module." While your gasoline Mustang (EcoBoost) was not explicitly named in that specific recall, it uses similar electronic shifting logic.
NHTSA complaint #11736799 — an unverified report by a vehicle owner.
SERVICE BRAKES
While driving, I attempted to depress my clutch pedal in order to bring my vehicle to a stop. My clutch pedal only went halfway to the floor. I was able to force it down to the floor using a higher than usual amount of force. After bringing my vehicle to a stop I inspected my clutch pedal and found that it had side to side play resulting from a cracked weld where the clutch pedal was welded to a shaft on the clutch/brake pedal assembly. Upon further research online I discovered that other owners of similarly aged mustangs have had identical issues to what happened to me.
NHTSA complaint #11722755 — an unverified report by a vehicle owner.
SERVICE BRAKES
While driving at normal road speed, the vehicle suddenly displayed multiple warnings at the same time indicating that AdvanceTrac (electronic stability control), traction control, and ABS were disabled, and the vehicle entered a reduced functionality state. These warnings appeared simultaneously without any hard braking, loss of traction, or driver input at the time. The warnings and system faults then cleared in a cascading manner over a short distance, with each system returning one after another while continuing to drive, without shutting off the engine. After approximately a few thousand feet, all warning messages disappeared and the systems appeared to return to normal operation on their own. This has occurred more than once since ownership. The first occurrence happened at approximately 50 mph. The second occurrence happened at approximately 20 mph and occurred only seconds before an emergency braking event in the rain to avoid a collision. At the time the warnings appeared, the vehicle had temporarily lost ABS, stability control, traction control, and related braking assistance systems, creating a serious safety risk during an actual emergency maneuver. After the events, an OBD-II scan was performed and no stored fault codes or diagnostic trouble codes were present. However, for the next several engine on/off cycles, the steering and traction control behavior felt abnormal, as if the systems were only partially engaged, even though no warning lights or messages were displayed. No permanent warning lights remained illuminated afterward. The problem is intermittent and difficult to reproduce. No collision occurred, no repairs have yet been performed, and the cause is currently unknown
NHTSA complaint #11713036 — an unverified report by a vehicle owner.
SERVICE BRAKES
I was driving down the road in my 2018 Mustang ecoboost. When all of the sudden slowing down it locked the rear wheels up. I slid off the road and fortunately I didn’t hit anything but it did pop my side skirt off in the rear of the car. Thankfully the person behind me reacted in quick enough time to get around me considering the rainy weather conditions. This is very dangerous. It’s throwing a code for a solenoid B. Had traction control lights. And says see manual. But they all illuminated after the problem first happened. The car has been parked for a while. However someone suggested I try this website. There were no pre warnings to what was going on. The car drove fine up until the point of it just randomly deciding to lock the rear wheels up. I still owe money on the car and have been paying for it for almost two years since it happened. The car has around 100k miles. I saw online where my car is not the only case. One of the cases the car almost got hit by a train. Yikes.
NHTSA complaint #11708074 — an unverified report by a vehicle owner.
SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES
The contact owns a 2015 Ford Mustang. The contact stated that while driving 35 MPH and attempting to depress the brake pedal, the clutch pedal detached from the brake pedal assembly. Neither an independent mechanic nor a dealer was contacted. The vehicle was not taken to a dealer or independent mechanic to be diagnosed. The vehicle was not repaired; however, the vehicle was in the process of being repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 115,724.
NHTSA complaint #11695325 — an unverified report by a vehicle owner.
SERVICE BRAKES
While parked all day with the ignition off and lights off, I returned to find the brake lights and third brake light illuminated. The lights stayed on even after moving the brake pedal. I discovered a small broken plastic bumper on the floorboard, which appears to be the brake pedal stop bumper associated with recall 22V011. This failure causes the brake light circuit to remain closed, leaving the brake lamps on continuously, potentially confusing other drivers and draining the battery. No crash occurred.
NHTSA complaint #11680544 — an unverified report by a vehicle owner.
SERVICE BRAKES
Automatic breaking engaged too sensitively, the driver infront of me had stopped a few yards away and I was already starting to stop when the vehicle suddenly stopped. The driver behind me almost rear ended me. This was at a green light.
NHTSA complaint #11675438 — an unverified report by a vehicle owner.
SERVICE BRAKES
Brake Stop Lamps Remain On When I was driving, my car was having throttle/acceleration issues. When I had my foot on the gas, my car would accelerate and the RPMs would rise, but then all of a sudden the acceleration stopped as if I was not applying throttle. I had to constantly take my foot off the gas and reengage for the car to drive home. When I parked my car, I noticed that my brake lights were all on even though my car was turned off & it is draining the battery out. I did some research & found out there is a recall for this issue (22S02) for the 2015 Ford model & Dealership mentioned that recall doesn't apply to my vehicle. So I have to get the repair done by replacing the break light switch & Break pedal bumper assembly with my local Auto zone shop and pay from my pocket.
NHTSA complaint #11674253 — an unverified report by a vehicle owner.
SERVICE BRAKES
The brake sensor position pad sensor deteriorated. Causing the system to read that the brakes were being applied. This makes the Brake lights staying on even when the key is turned off. This is safety since with the lights always being it there is no way for others to know when you are actually stopping. And it also makes the car be able to be started by accident. Even with no key fob. It also causes the lights being on and the ignition to be ready start to drain the battery. Ford used inferior material for the stop pad. It is a hard plastic piece instead o being either metal or rubber. There is a lot of info on mustang form sights about this happening around the 8 year mark.
NHTSA complaint #11674284 — an unverified report by a vehicle owner.
SERVICE BRAKES, HYDRAULIC
The contact owns a 2015 Ford Mustang. The contact stated that the brake pedal bumper fractured, and the brake lights illuminated. The contact stated that the failure caused the battery to become drained. The accelerator pedal was stuck and drained the battery. The contact stated that the failure was related to NHTSA Campaign Number: 22V011000 (Service Brakes, Hydraulic). Additionally, the contact resides in North Carolina but had not transferred the New York vehicle registration. The contact called the local dealer and was referred to the manufacturer for assistance. The vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 76,000.
NHTSA complaint #11672456 — an unverified report by a vehicle owner.
SERVICE BRAKES
Was driving and the traction control light came on car started shaking, pulled over got out to look and the car was on fire. Fire started in the right rear of the trunk Where the backup camera wire harness is located. It has not been inspected. Car is currently at an impound lot but is available for inspection.
NHTSA complaint #11663557 — an unverified report by a vehicle owner.
SERVICE BRAKES
My wife was pulling into her head-in parking space at work and the brakes did not slow the car down. She pressed the brakes hard. The car went over a curb and hit a fire hydrant. The fire hydrant broke off and the car rolled over it. The car went into the street and she steered it to keep it out of traffic and stopped by using the parking brake. There were no warning lights. The airbag(s) did not deploy. There were no personal injuries. The car was inspected by a repair shop and deemed a total loss. A brake line was damaged during the crash. The repair shop personnel did not think the brakes failed prior to the accident because the master cylinder had fluid in it. No other brake inspections have been done.
NHTSA complaint #11662734 — an unverified report by a vehicle owner.
SERVICE BRAKES
Broken break pedal stop, causing break lights to stay on, other malfunctions as the car thinks the breaks are pressed when they aren't.
NHTSA complaint #11657155 — an unverified report by a vehicle owner.
SERVICE BRAKES, HYDRAULIC
The contact owns a 2017 Ford Mustang. The contact stated that the brake fluid was depleting abnormally. The contact was adding brake fluid constantly. There were no warning lights illuminated. The contact stated that the failure was like NHTSA Campaign Number: 23V162000 (Service Brakes, Hydraulic). The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 90,000.
NHTSA complaint #11655184 — an unverified report by a vehicle owner.
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING
The contact owns a 2014 Ford Mustang. The contact stated that while driving approximately 80 MPH, the transmission unexpectedly downshifted from fifth gear to first gear, causing the vehicle to abruptly decelerate. After turning off and restarting the vehicle, the vehicle operated but in LIMP Mode. The vehicle was taken to the local service center who diagnosed that the wheel speed sensor and lead frame needed to be replaced. The vehicle was not repaired. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The failure mileage was 140,000.
NHTSA complaint #11642585 — an unverified report by a vehicle owner.