Which parts fail
Components named in complaints (service brakes, ABS, rotors and pads, parking brake).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2021 Ford Explorer owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2021 Ford Explorer. The contact stated that he recently had a manufacturer recall performed on the vehicle for Ford Customer Satisfaction Program Number 22N06 (Rear Axle Bolt Replacement). The contact stated that the dealer re-programed the E-brake to engage automatically when the vehicle was placed in park(P). The contact stated while reversing out of his driveway the vehicle would not move. The contact had been instructed to tap on the accelerator to release the E-brake. The contact stated that the RPM was raised to approximately 2,000 RPM, and only then would the high RPM release the E-brake; however, the vehicle would lurch into motion at approximately 10 MPH. The contact stated that the E-brake warning light was illuminated and then switched off once the E-brake was disengaged. The contact stated that the failure was more pronounced while reversing on a slope. …
On July 1, 2023, I had the vehicle parked on an incline with a trailer attached to the vehicle. The vehicle was in Park and the Parking Brake was set. As I attempted to unload the trailer, the vehicle started to move and rolled down the incline. I was on the trailer and was moving with the vehicle, I could have been injured but fortunately the vehicle rolled into a pile of topsoil before it could pick up too much speed. However, both the vehicle and trailer were damaged My safety was put at risk as the vehicle was moving without anyone in it. This occurred in my driveway but could have happened on a busy street. I still own the vehicle and it is available for inspection. There were no indications, warning lamps, etc. that would have notified me of the impending failure. I contacted Ford and they have been of little help. …
The contact owned a 2021 Ford Explorer. The contact stated while driving approximately 25 MPH he depressed the brake pedal to slow for a traffic signal and the vehicle experienced brake failure. The contact stated no warning light was illuminated. The contact drove over the median to avoid crashing into vehicles directly in front of his vehicle. The contact stated that he was pumping the brake pedal however, the vehicle seemed to accelerate independently. The contact stated that he attempted to shift the vehicle into neutral(N) however, the shifter dial would not move. The contact stated he had attempted to turn the vehicle off but could not turn off the vehicle. The contact stated he was finally able to stop the vehicle prior to crashing into traffic directional poles. The contact stated that the Police arrived on the scene and wrote a report. …
The contact owns a 2021 Ford Explorer. The contact stated that while her husband was driving at an undisclosed speed, the brake pedal was sticking on three occasions. The contact stated that while driving at an undisclosed speed in a parking lot, the contact had to raise the brake pedal with her foot after the brake pedal was depressed. The contact stated that it felt like the parking brake was engaged. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the power brake booster was inoperable. The part: L1MZ2005K - Ford Power brake booster was on back order for a month. The vehicle was taken to an independent mechanic who repaired the brakes, and informed the contact that the required parts were on back order for three months. …
The contact owns a 2021 Ford Explorer. The contact stated that while driving on several occasions at various speeds, the master warning, brake, battery, ABS, and brake system warning lights illuminated. Additionally, the message "STOP Safely Now" was displayed. The vehicle then went into LIMP Mode each time, but the vehicle failed to respond while the contact was attempting to turn off the vehicle or accelerate. The contact stated that while the vehicle was in neutral(N), it failed to respond as intended. The vehicle was taken to a dealer, where it was diagnosed that there were 11 undisclosed modules that needed to be updated, and the hybrid system was inoperable. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 54,230.
The contact owns a 2021 Ford Explorer. The contact stated that he had received a recall notification for NHTSA Campaign Number: 22V255000 (Power Train). During a routine maintenance check, the recall was serviced; however, upon return of the vehicle, the brake pedal was depressed to the floorboard with the parking brake fault, uphill assist, and ABS warning lights illuminated. The contact also stated that while driving at various speeds, the brake pedal hardened and the vehicle failed to stop as needed. The contact's wife called the dealer and was informed that there were 5 other vehicles that had experienced the same failure. The contact attempted to reach the manufacturer but was unsuccessful. The vehicle was not repaired. The failure mileage was approximately 37,000.
The contact owns a 2021 Ford Explorer. The contact stated while driving 30 MPH and attempting to slow down, the vehicle failed to properly respond. The contact desperately depressed the brake pedal, but the vehicle failed to respond. The contact activated the parking brake, and the vehicle was able to stop. The contact was able to drive back to the residence. The vehicle was towed to the dealer and the dealer stated that the ABS module needed to be replaced. The vehicle was repaired but the failure persisted. The vehicle was taken to the dealer and the dealer stated that the wiring harness needed to be replaced. The vehicle was not repaired. The manufacturer was contacted, and a case was filed. The failure mileage was 20,000.
The contact owns a 2021 Ford Explorer. The contact stated that while driving at approximately 35 MPH down a hill, the engine and powertrain were resistant when the brakes were applied. No warning lights illuminated. A mobile mechanic was sent by a local dealer to inspect the vehicle. The mechanic determined that the failure was due to the transfer case but was not related to NHTSA Campaign Number: 26V402000 (Power Train). After test driving the vehicle, the mobile mechanic determined that the vehicle was unsafe to drive. The vehicle was not repaired. The manufacturer was contacted and referred the contact to the local dealer. The failure mileage was approximately 89,200.
The recall to replace the rear axle bolt was completed and new boil installed. They left the automatic emergency brake program engager which results in the vehicle lurching forward or backward when shifted into gear and results in collisions with other vehicles as the collision detection system is not working.
After receiving a Ford issued recall for a potential rear axle bolt fracture, the dealer reprogrammed the PCM per Ford's reported repair solution. After this PCM update, the vehicle would randomly slam to a complete stop while driving. It happened several times with 3 different drivers (myself, my wife, and my son), each happening at 30-35 mph or less. It was usually preceeded by an audible clicking sound, but not always. We took the vehicle to the dealership several times, but they said they were not able to reproduce the issue, and continually returned the vehicle to us despite our grave concern for high risk of crash and injury. …
Related recalls
Parking brake › Electrical
Ford Motor Company (Ford) is recalling certain 2020-2022 Explorer vehicles equipped with a 2.3L RWD, 3.3L GAS, 3.3L FHEV, or 3.0L ST powertrain. The previous powertrain control module (PCM) update completed under recall 22V-255 did not include the automatic electronic parking brake feature when the vehicle is shifted to park,…
Remedy: Dealers will update the PCM software, free of charge. Owner notification letters were mailed on May 31, 2023. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 23S16.
Brake complaints in other Explorer years
Frequently asked questions
How common are brake problems on the 2021 Ford Explorer?
NHTSA has 24 complaints about the brakes of the 2021 Ford Explorer, 5% of the model year's 447 complaints. The component named most often is electrical (1 mentions).
Is there a recall for 2021 Ford Explorer brake problems?
Yes — NHTSA recall 23V-199 (electrical, Mar 24, 2023). Recall repairs are free at authorized dealers.
At what mileage do 2021 Ford Explorer brake problems start?
Half of the complaints with a recorded mileage happened before about 37,000 miles, and 43% before 25,000 miles.
Is it dangerous?
Owners linked 3 crashes, 0 fires and 1 injury to brakes 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.