2021 Ford Bronco Sport Driver assistance Problems

The contact owns a 2021 Ford Bronco Sport. The contact stated that the daughter had reported that while in a parking lot, the brakes unintendedly engaged, and then the vehicle suddenly accelerated. The driver immediately applied the brakes to stop the vehicle. The contact was able to duplicate the failure while attempting to park the vehicle. The messages "Power Train Malfunction" and "Reduced Power" were displayed, the power train warning light illuminated, and the parking brake warning light flashed continuously. The vehicle was being towed to the dealer. The vehicle was not yet diagnosed or repaired. The manufacturer was informed of the failure. The failure mileage was 108,236.

NHTSA ID

11742661

Incident

Jun 7, 2026

Mileage

108,236 mi

I purchased the 2021 Ford Bronco Sport in August of 2025. There were issues after about a week with all kinds of messages of components not working cycling through constantly on the display. The electric brake would engage on its own while parked and had to be shut off before I could go forwards after starting the vehicle. I took it to the dealership where I bought it and after a few days they said it was a batter issue and replaced it at no cost to me. It worked okay for a short time and then I had the same issues and now added to those were it wouldn't start for at least 15 minutes and several tries. Cruise Control could not be used and the turn signals would not work while all of the messages were displaying. The windshield wipers would only work at the highest setting and the rear wipers would not work at all. I took it to another Ford Dealership and they said it was an electrical wiring issue that they found. The High Speed Cam wiring is what they found a break in and they fixed it and cleared the codes. I paid $450 for this repair. Just 4 days later the issues have returned. Messages about components not working, this time the right turn signal would not shut off. I am concerned about the safety issues while driving with my turn signal stuck on. I called the same Ford dealership and they can get it in on Friday so that I can have a loaner car. I just don't feel safe driving the Bronco. I don't have the money to loose on trying to trade it in with these issue. Help!!!!

NHTSA ID

11729602

Incident

Mar 26, 2026

Keeps cutting off and my screen aswell.

NHTSA ID

11694512

Incident

Jun 19, 2024

!!!ALWAYS GET A SECOND OPINION WITH "TRANSMISSION ISSUES"!!! I will NEVER get a Ford again! I'm updating my previous issue #11688946 I received my 2021 Ford Bronco Sport in early 2023. I noticed a shutter when accelerating from a stop, I took it to the dealership and had the 3rd fuel injector recall completed (still waiting for a remedy to the most recent #25V467). The dealership stated my vehicle should run fine now. The shutter persisted and worsened and a new issue developed, my RPM's would slightly bounce while going at a steady speed. 09/19/2025 BACK TO THE DEALERSHIP I GO!Just for them to "diagnose" the issue I had to pay $165.00. AND they tried to charge me double stating it took them 2hrs. My BS was dropped on less than 2hrs of them calling me. DIAGNOSIS: torque converter. They recommended a flush and fill for $300-$400. 09/25/2025 I bought an OBD-II and plugged in to see if there were any codes. The codes I got make way more sense than a new transmission. -U0140:00-08--BCM missing communication -U1A00:87-08--APIM private communication network malfunction -U2013:01-08-- Switch pack issue Also the EVAP system vapor pressure as well as Oxygen sensor current (B1-S1) is functioning incorrectly and randomly drops below the normal range. My transmission is fine... All they had to do is updated/reset my BCM when they had it as well as perform a "relearn". But they didn't!!! Clearly these are not always transmission issues but service work is what makes dealerships more money.

NHTSA ID

11693477

Incident

Oct 14, 2025

Car was put into drive and wouldn’t go. It would finally go but Everytime the engine changed gears it dropped to 0 rpm’s making it very dangerous to drive!!! Lots of lights came on and my app sent me two things wrong with it. After having it checked the codes said it was a valve body issue. Replacing the transmission is $4000, and I’m not the first with this problem a friend of mine had the same issue a couple weekend before me.Had two mechanics one of which was from the dealership tell me this was happening a lot! It’s very dangerous especially when you have kids in the car like I did and are having to stop at red lights and such. There were no issues or lights to show warning of this happening either.

NHTSA ID

11684257

Incident

Aug 21, 2025

Car suddenly and dangerously braked on highway with no other vehicles around. Afterwards the tool and check engine lights came on. All advance trac systems failed. Dealership replaced the broken bolts and rear axle. In review it appears recall 21s04 should apply. Site shows 2021 broncos from Hermosillo plant apply. Rep stated building date range 7/22-11/24. How can this apply to a 2021 ford recall?

NHTSA ID

11679032

Incident

Jul 4, 2025

My car would not move or go into gear. I was told it was my transmission but the diagnostic said it’s my powertrain control module. The mechanic finally admitted he broke my transmission. My Bronco is still sitting at the service department of the dealership. I have not had my vehicle since June 6, 2025. All I get is still ordering parts! I need a vehicle this is my only source of transportation and now I’m borrowing daily from family members. I don’t understand why they didn’t look into the powertrain from the beginning.

NHTSA ID

11676317

Incident

Jun 5, 2025

I have attached a letter that I mailed to Ford Consumer Affairs detailing the issues with this vehicle and asking them to repair the transmission. I received a response letter from them yesterday denying my claim. I am seeking advice on how I can proceed with Ford, if at all, to try to get them to fix this issue that was clearly caused by multiple recalls. I am not the only consumer reporting the exact same problem with this vehicle. Thank You, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11662543

Incident

Jan 3, 2023

The brakes make a loud and terrible squeeking noise (moan noise) when driving the vehicle in reverse and braking. There is something terribly wrong and may initiate a problem at a later date when driving forward. Ford is aware of the problem and issued TSB22-2326 in August 2022, revised to 23-2041 in February 2023, revised to 23-2308 in October 2023 and revised again to 25-2143 in April 2025. THEY HAVE SUCCESSFULLY DELAYED THE RECALL FOR THREE YEARS NOW THAT ALL 2021 BRONCO SPORTS ARE OUT OF WARRANTY. This is rediculous and dangerous.

NHTSA ID

11662345

Incident

Apr 10, 2021

They sold me a car that wasn’t ready to be sold. They promised to fix it, but they didn’t. Child seat anchor latch ,cross traffic alerts rear,rollover stability control, front drive airbags antilock brakes front passenger airbags the trim electronic/control brake assist running light side impact airbags. Say current airbags, front passenger airbag front dryer airbags Ford collision warning, warning don’t worry, automatic emergency break for compound doesn’t work in base. It’s supposed to be a gold certified vehicle. they’re lying to me about my warranty in the packages that I bought. My caliper was supposed to be fixed because it was ready when I got it my chassis and Auntie breaker system my gateway to be reprogramming for inspection and maintenance the warranty for the rest. The budget powertrain the SOS post crash alert system. They never gave me copy my certified thing. I have a non-conformity part on my car and it’s supposed to be certified that supposed to be on there cause preowned CPO certified the non-conformity part don’t fit in there or fit as it supposed to because it’s not after four part because they don’t do it. I bought extra. I bought extra warranties and extra upgrades and they’re not honoring it they want to give all my paperwork when I bought the car. There was no buyers guide in the window per federal regulations or state creditors I paid for seat covers upgraded. They never put them in. Ford dealership in nevada on decatur

NHTSA ID

11659334

Incident

Jan 15, 2025

The contact owns a 2021 Ford Bronco Sport. The contact stated while driving at various speeds, an alarm was intermittently activated associated with the Forward Collision Avoidance system while there were no other vehicles nor objects nearby. The engine warning light was illuminated. The vehicle was taken to a local dealer and was diagnosed; however, the cause of the failure was not yet determined. The vehicle was not repaired. In addition, the contact stated that the radar sensor system was replaced previously. Upon further investigation, the contact related to failure to NHTSA Campaign Number: 21V982000 (Forward Collision Avoidance); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 32,000.

NHTSA ID

11656493

Incident

Sep 15, 2024

Mileage

32,000 mi

Purchased the Bronco Sport brand new in September 2021. Almost from the outset, the vehicle has been a nightmare. We just purchased our third battery. The vehicle died at an intersection and had to be towed to the dealership. They replaced the battery but it again failed. We have experienced numerous electrical issues with the vehicle as well as with the brakes and the power train. We have had the shift system fault notification come on several times. We took it in to the dealership who made some repairs and the notification went away for awhile. However, most recently, we were driving the vehicle down the interstate when it suddenly would not accelerate. We were very lucky to be able to maneuver the vehicle onto the shoulder. After a few minutes, the vehicle started and we were able to drive it home very slowly on side roads. We took the Bronco Sport to the dealership again and notified them of the multiple trips we had made there to fix this code issue. The dealership did a diagnostic and had a transmission specialist look at the car. The conclusion was that we needed a brand new transmission to the tune of $11K. Additionally, the dealership stated that we likely had rear differential issues as well - the subject of one of the many recalls on this lemon of a vehicle. We have not had the diagnostic performed as we are waiting on Ford to let us know if they will buy back the vehicle. Again, we purchased the car new and it has about 80K miles on it. There is no discernible reason for the transmission to fail on a car this new which has primarily been driven to and from work. A quick Google and social media search shows this is a pervasive problem with the 2021 Bronco Sport - many owners are experiencing electrical, power train and transmission issues. NHTSA needs to investigate this matter before someone is seriously injured or killed because of the failure of Ford in manufacturing the 2021 Bronco Sport.

NHTSA ID

11655719

Incident

Mar 24, 2025

The contact owns a 2021 Ford Bronco. The contact received notification of NHTSA Campaign number: 25V019000 (ELECTRICAL SYSTEM); however, the part to do the recall repair was not yet available. The contact stated that while driving at an undisclosed speed, the vehicle accelerated independently. The contact stated that after depressing the brake pedal several times, the vehicle was able to come to a stop. The message "Brakes Applied - Acceleration Reduced" was displayed. The contact had experienced the failure approximately 10 times. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was approximately 30,000. VIN tool confirms parts not available.

NHTSA ID

11655477

Incident

Mar 18, 2025

Mileage

30,000 mi

See attached document for complaint.

NHTSA ID

11653738

Incident

Mar 15, 2025

My car has left me in the middle of the road twice in 2 weeks . I am scared and nervous can’t understand what’s going on , I am with my kids and no one to help . Every light comes on and off and it won’t start , the first time my ex husband jumped it with his jumping cables and it came right back to life , but this second time , we jumped it for about 5 times and nothing . Towing truck came in the night the day after it happened and he jumped it and it started, drove my car really carefully back home and now I’m scared to use my car because I’m afraid it’ll leave me in the middle of the highway or what’s worse it can cause an accident and my kids inside . I couldn’t even imagine how devastating that would be. Please help me to find a solution for this matter _ Sincerely, A mom with 3 kids driving to her job and kids sports every day and she needs a reliable car .

NHTSA ID

11653099

Incident

Apr 3, 2025

Since performing a manufacturer update to the Sync technology system, my touch screen has not functioned properly, including the back up camera. The screen goes black or freezes on the rear view camera even when in drive and moving forward. Each time this happens, the system has to be rebooted.

NHTSA ID

11629720

Incident

Dec 9, 2024

Since the purchase of the Bronco Sport in 2021, I have intermittently taken it in for required service. However, there have been times when I have had to take it in for hearing noise coming from when I make turns, and it sounded like my break pads were making the sound of wear. A recent report did address the break pad concern, and they were replaced. Intuitively something told me to check my fluid levels and the engine air filter, along with the cabin air filter. They both needed replacing, which I did on my own. The mechanic who put on my break asked me questions about the Bronco, I explained to him that I was having issues with take off, and have had to take it in for recalls since make the purchase. He asked me to open the hood. What he found was oil leaking around was oil leaking around my turbo. I was shocked. Because it had not been long since it was serviced. I was told to not drive it too far because there were reports of some Broncos catching on fire. When I would take it in to Town AND Country Ford, where it was purchased, they would tell me that they could not find anything wrong repeatedly, supposedly one of the recalls was fixed. Yet, I still hear the noise when I make turns. Another Ford dealership around the corner from where I live and I decided to take it there to see if I could get different results. No help. They have changed my oil I hope. Then there is Bates Ford in Lebanon, Tennessee. I have taken it there for oil change and informed them of issues. This is the last dealership who inspected the Bronco. They did not tell me about the oil leak. I drive 10 miles to work weekly. 100 miles every other month to visit elderly relatives. So, I have not put too much wear and tear on the Bronco and do not drive it hard. Please, If you are able to help in this area, it is much appreciated. I have 54,000 miles on it

NHTSA ID

11615833

Incident

Sep 22, 2024

Vehicle experienced power terrain failure causing vehicle to stop while driving in the middle of the road meanwhile cars avoid hitting my vehicle. I had my [XXX] old in the backseat at the time and this incident could have caused injury or possibly death. Vehicle has also experienced accelerator issues. Vehicle would lag 3-5 seconds for vehicle accelerator to speed up when pressing on accelerator. Fortunately no major accidents, but I am concerned that the issues I have experienced thus far with the Bronco 2021, it can potentially cause a major accident that can possibly cause injury or death. Through Ford Pass app I do recieve warning messages of mechanical issue at time of incident. Vehicle has been inspected and mechanical issues corrected at the dealership. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11596698

Incident

Oct 30, 2022

I bought my Bronco back in January this year (2024) and everything worked great. Then fast forward the end of May (2024) and my car when I got in it and crunk it up told me my MyKey had been activated. I said what is a MyKey never heard of it before in my life. I did some Google searches and tried to figure out. Once I figured it and couldn't get it off of there myself I took it to a Ford dealership. They told me the MyKey had to have the admin key and they would have to cut one etc and then the labor all together would be 400 dollars. I was floored how did this even happen? Who put the MyKey on here? It restricts the speed which you can go, only allows the radio so high, and you have to be buckled for the radio to play its crazy. So I call the dealership which I bought it from, Hendrick, my car was used and had about 39k miles on it. They don't know about MyKey either they sell used cars, but their main cars are Chrysler, Dodge, Jeep Ram. The used car guy said he would pay 200 for the key but not the labor that we had our car long enough it was time we took responsibility for it. Fast forward I reach out to Ford. The lady at Ford who said she was just a media specialist says oh just pay the money and keep the receipt. That if Ford does a recall in the future you will be reimbursed. I told her that this response was unsatisfactory as it creates a safety issue. I told her I was taking the car to Ford for recalls that needed to be fixed the next week and I would asked them how it got set. She didn't know how it got set either. The previous Ford dealership said he didn't know and that it could have been the previous owner but he couldn't confirm. So I went to the Ford dealership in Auburn this time to have the recall fixed and the lady at thr service center said yes the MyKey is only activated off the Ford app. My wife nor myself had the Ford app at the time this started which means the previous owner still had access to my key and set these limits. Google show more

NHTSA ID

11596023

Incident

May 20, 2024

The contact owns a 2021 Ford Bronco. The contact stated that while driving at 40 MPH during a rainstorm, the Lane Keep Assist System (LKAS) activated, after which the contact briefly lost control of the vehicle and the vehicle began to tailspin. The vehicle came to a complete stop after crashing into a barrier wall on the driver’s side. The air bags did not deploy. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. A Police report was not filed. There were no injuries reported. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 27,000.

NHTSA ID

11589287

Incident

May 17, 2024

Mileage

27,000 mi

The contact's mother owns a 2021 Ford Bronco Sport. The contact stated that while the vehicle was parked with the engine turned on and the transmission shifter in the park position, the engine began to rev and the vehicle suddenly experienced unintended acceleration and crashed into a brick building. During the incident, the braking system malfunctioned and did not stop the vehicle, and only the driver's side leg air bags were deployed. No other air bags in the vehicle were deployed during the crash. The driver sustained bruising to both legs, a left leg laceration, and a neck injury. The front passenger sustained a neck injury and the rear driver's side passenger sustained a torso bruise from the seat belt. All occupants received medical treatment at the scene. A police report was taken. The vehicle was destroyed and towed away. The contact indicated that the collision avoidance system had also malfunctioned and did not prevent the crash from occurring. The manufacturer and local dealer were not notified of the failures. The failure mileage was unavailable.

NHTSA ID

11550344

Incident

Sep 29, 2023

While driving vehicle will flash place hands on wheel while hands are on the wheel. It will then turn off sound system and cut off adaptive features until I shake my steering wheel irrationally to the left and right. It will also jerk the vehicle into other lanes to try and correct to stay in lane, while I'm inside of the lines issuing the adaptive driving features. If there is a break in the lines, ie: turning lane or intersection the adaptive wants to jerk course into other lanes. While driving down the expressway, if a car on either side brakes around me the collision control takes over and slams on the brakes. Most of the limits near me are 70!! Going 70 and slamming down to 50 before i can regain control has almost gotten me killed several times here in Florida!! I've informed dealership, but they claim the sensors are not throwing codes. This also has been happening since purchasing this vehicle.

NHTSA ID

11548006

Incident

Dec 21, 2021

Around 08/22 backup camera failed and now there is a dent in the tailgate area. I have documentation from the dealership, finally that the backup camera was not working properly. On about May 23, 2023, I stopped at a local grocery store for just a few items. When I came back out my car would not even attempt to turn over (approx. 24,000 miles). Had to wait three hours for roadside assistance to use a jump box to get it started (would not jump-start like a normal vehicle). The next morning it was dead again, and I had to call an Uber to get my child to school, not acceptable. I took it to the dealership again, and after three days they replaced the battery.....I had not even owned the vehicle for two years, it had 6 miles on it when I bought it, and it needs a new battery? Now it is 09/22/23, the dealership has had my car since the morning of 09/13/23 and I still don't have it back. There are issues with the safety features (lane departure doesn't work, front crash assist goes off randomly, backup camera STILL doesn't work half of the time, keep hands on steering wheel alert when both hands are on steering wheel, key not detected alert after I've been driving and the key is with me, stereo still playing when I disconnect the phone and exit out of all music apps on phone it just still plays music even music that I have never listened to). There is more but I cannot remember it all at the moment, and I don't have all of my records because they are with my car that I have not had in my possession in quite a while. DON'T BUY A BRONCO! BUY A JEEP!!!! That is what I have learned from this, my first and only Ford and I can't wait to go back to Mopar products. I have truly bought a lemon!

NHTSA ID

11546110

Incident

Aug 6, 2022

The contact rented a 2021 Ford Bronco Sport. The contact stated that while driving at approximately 30 MPH, the vehicle stopped unintendedly without the brake pedal being depressed. The vehicle then lost power and was not able to be restarted. The vehicle was towed to Enterprise Rental Car. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 25,000.

NHTSA ID

11544129

Incident

Sep 8, 2023

Mileage

25,000 mi

3 systems go out suddenly while driving and control becomes unstable. Return to dealer 2 times to have it "recalibrated" and it went back out within 3 days intermittently working and mostly failing. Dealer said it was do to calibration with the camera and 360 technology needing to be re-calibrated. The vehicle has never been in an accident.

NHTSA ID

11531724

Incident

May 1, 2023