The Vehicle was serviced as normal, everything came back in good shape. A few days later the transmission began to slip. The vehicle was taken back to the dealership where I was told that the Torque Converter was broken and the vehicle would require a full transmission replacement costing a total of $8K. The vehicle currently has 102,357 Miles on it.
2021 Ford Bronco Sport transmission complaints
Page 4 of 8: complaints 71 to 100 of 194, newest first, as owners wrote them.
Seeing that the 2021 Does Bronco Sport has had a total of 16 transmission complaints/issues I'll go ahead and add mine. My Bronco sport started shuttering during acceleration as well as the RPM needle slightly bouncing up and down. I brought my Ford into the Ford dealership for a diagnosis, I paid $165 for them to look at it and them later tell me that my torque converter is going out. They recommended a flush and fill to help with the longevity, stating that would be between $300-$400. That's when I asked how much it would cost for them to fix the torque converter they stated between $3,500-$4,000. Really something I did not want to hear especially knowing that we are on our 15th recall but this one has no solution. Still waiting on the answers for recall #25S76 and #25V467.
While driving with my [XXX] son in the vehicle, the vehicle suddenly shut down completely in the middle of the street at a red light. Nothing was functional and we were unable to move the vehicle out of the street. A tow truck came in 3 hours and towed the vehicle to the dealership. The dealership advised that it was the battery which they replaced. When merging lanes on the interstate with oncoming traffic, the gas accelerator would not accelerate to speed up. I had to step all the way down on it several times until the vehicle was finally able to accelerate. This has also occurred while at a red light and stop sign. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Grinding noise when turning. Determined noise was coming from rear drive unit due to failed clutches. Had to get rear drive unit assembly and vent line. There appears to be many broncos with this problem.
The contact owns a 2021 Ford Bronco Sport. The contact stated that while driving at slow speeds and turning in either direction, there was an abnormal grinding sound coming from the rear of the vehicle. Additionally, while driving at various speeds, the vehicle shuddered and hesitated while accelerating. The vehicle was taken to the local dealer, who diagnosed the vehicle and determined that the rear differential and transmission were faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was not yet contacted. The failure mileage was 75,000.
We brought the car to the dealership for oil change and recall fixes. After picking the vehicle up, the transmission failed the next day. The dealership nor Ford customer service have been any help and claim that they didn’t do anything that could have impacted the transmission. They are wanting us to pay $13k to replace the transmission
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.
shaking and vibration noise is coming from the rear passenger side of the vehicle. Rear drive unit and hose need to be replaced due to a build up of road debris in the rdu hose. Has happened with many bronco sports from 2021-2022
Car making terrible noise when backing up and turning left. Mechanic said its rear differential and its being recalled. Contacted Ford and my vehichle was manufactured 2 months after the recall issued. And saying they eont fix it. However it is thecexact same issue.
My car is only 4 years old and is now in need of a brand new transmission. The power train lights are on, the emissions lights stay on, it shuts off after getting gas and won’t restart. I’ve been to the Ford dealer to fix “recalls” and was told there was no fix for it yet and that the noises I was hearing and the problems I was having was all fine and that there should be no long term issues with my car. Now, a few months later my car is back at the dealership in need of a whole new transmission. I am so sick of the issues and constant battles with this car and being told it’s fine and to wait for a call for the update to be ready. I am now out of a vehicle and I haven’t even owned it a year yet.
The contact owns a 2021 Ford Bronco Sport. The contact stated that while driving and making right turns at undisclosed low speeds, there was an abnormal growling sound coming from the rear end of the vehicle. The vehicle was taken to the local dealer, where it was diagnosed that the rear drive unit had failed and needed to be replaced. The vehicle was repaired under an unknown Ford TSB. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 77,000.
The contact owns a 2021 Ford Bronco Sport. The contact stated that while driving at 35-40 MPH, the vehicle started shuddering, shifted into gears unintendedly and failed to exceed 4 RPMs and 10 MPH. The messages "System Failure Mileage" and "Parking Not Available" were displayed. The vehicle was towed to the local dealer to be diagnosed. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 136,000.
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.
The contact owns a 2021 Ford Bronco Sport. The contact stated while driving at undisclosed speeds and attempting to turn to the left or the right, there was an abnormal rubbing sound coming from the rear passenger’s side of the vehicle. A dealer was contacted. The vehicle was taken to a dealer where it was diagnosed and determined that rear differential needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance. The approximate failure mileage was 114,715.
I have 66,310 miles on my 2021 Ford Bronco Sport and recently found out that it needs a new transmission. Their quote for the transmission was $13,000… yes you read that right $13,000!!!! More importantly is the fact that the transmission crapped out at 66,310 miles… The dealership (Stamford Ford) told me there was NOTHING they could do as the warranty expired at 60K miles. After some research online it turns out that FORD BRONCO IS PLAGUED WITH TRANSMISSION ISSUES AND THEY REFUSE TO RECALL THEM. There are literally thousands of complaints from people with the same issue
The contact owns a 2021 Ford Bronco. The contact stated while driving 60 MPH, the vehicle started to lose motive power and was shaking abnormally. The contact depressed the accelerator pedal, and the RPM became elevated; however, the vehicle failed to respond as intended. The contact stated there was no warning light illuminated. The contact was able to exit the high and parked in a parking lot. The contact turned off and restarted the vehicle and became aware that the wrench symbol was displayed. The contact shifted into reverse to exit the parking lot and "Low Power Mode” warning light flashed on the instrument panel. The contact was able to drive the vehicle to a dealer at speeds below 30 MPH. The dealer diagnosed the vehicle and determined that the transmission had failed and needed to be replaced. The vehicle was not repaired. The contact researched online and related the failure to the federal safety agency Campaign Number: 25V158000 (Power Train, Electrical System). The contact had replaced the 12-Volt battery prior to the failure because the battery failed to charge. The contact had the alternator checked by a battery shop and the battery was in operational condition. The manufacturer was informed of the failure and informed the contact that the vehicle was not covered under warranty. The failure mileage was approximately 82,000.
Since I have bought this used vehicle in September 2024, it has been shutting off completely with having to restart the engine. There was a recall for the battery in January 2025 that was finally approved to be replaced maybe in May or so. Battery was replaced but it keeps shutting off. I just took it in July 7 for the fuel pump to be replaced as they said that was the final cause. I drove it home the same day when it was finished and it has been shutting off still. It has shut off while I have been at the light, in reverse and as well as putting my vehicle into reverse by itself which could cause an accident. This situation has since be unresolved. I have taken it to the ford dealership with them many times with them saying there is nothing wrong with it.
I have a 2021 Bronco sport Big Bend with only 27,000 miles on it. it I started to notice a binding sensation and accompanying noise from the rear of the vehicle when making sharp low speed turns. I took it to the dealership and they thought it was a brake problem but nothing was found from this inspection and the noise persisted. Then I took it in and had the rear differential inspected and found that the axle retaining clip is broken or has fallen off and the axle is pounding on the retaining pin. The Tech told me that this is a very common problem with Bronco sport Big Bends and requires replacement of the entire differential and the axel shaft, this is a four thousand dollar repair on a lightly used vehicle with low miles. The dealer says there is a national back order on these parts as this is such a common problem with this model.
The contact owns a 2021 Ford Bronco Sport. The contact stated while driving at an undisclosed speed, the vehicle jerked abnormally. There was no warning light illuminated. The vehicle was taken to the dealer where it was diagnosed with a fractured and leaking CV boot. The contact was informed that the CV boot needed to be replaced. The vehicle was not repaired. In addition, the contact stated that the vehicle had been at the dealer several times due to the persistent failure. The manufacturer was made aware of the failure and a case was filed. The contact was informed that the repair was not covered under recall or special programs. The contact was advised to contact the federal safety agency Hotline to report the failure. The failure mileage was approximately 70,000.
Vehicle: 2021 Ford Bronco VIN: [XXX] Mileage: Approximately 88,000 miles Complaint: I am reporting major safety and drivability concerns with my 2021 Ford Bronco, which is currently undrivable and in the shop at Ron DuPrat Ford in Dixon, California. Despite experiencing issues nearly identical to those covered under existing recalls, my vehicle’s VIN is not currently included. While driving on the freeway, the vehicle suddenly malfunctioned. Without warning, it dropped into first gear at high speed, causing a rapid and unexpected deceleration. This could have easily resulted in a serious accident or even death — not only for my family but for others on the road. This is a major safety issue. After pulling off the road, the vehicle would no longer go into reverse and became completely undrivable. I also received multiple dashboard alerts, including: “An electrical fault has occurred with the transmission fluid pressure sensor circuit and its associated wiring.” “Powertrain Malfunction / Reduced Power” “A Powertrain or All Wheel Drive (AWD)/Four Wheel Drive (4WD) fault has been detected.” This is our main family vehicle, used daily for commuting and travel. I am still making payments on it, and the fact that it has become unsafe and unusable at this mileage is unacceptable. If this vehicle was not built for long-term use or daily driving, that should be clearly stated not discovered through dangerous failures like this. I no longer feel safe transporting my children in this car. I strongly urge the federal safety agency to investigate whether the current recall coverage should be expanded to include additional VINs like mine. This appears to be a serious safety defect that poses a risk to drivers and passengers and requires immediate attention. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Vehicle chutters especially turn low speed turns and after stopping and making turn. You can feel vibration in the steering wheel and can be jerky turning. I have read of multiple other reports of this happening to vehicles and there is a TSB (24-2185)out for the repair. Ford knows about it and should be liable for the fix.
Parked my car, came back to it and it would not engage in gear. Put it in reverse and it will not go. Put it on forward and it would go. After a little bit it would not engage even if I put the car in reverse or forward. Car did not give any indication of transmission issues at all. No weird sounds or rough gear. Flushed transmission fluid (black color) and got original ford trans fluid in it. It engages but it is rough and not driveable. Car did not give any indication of transmission problems at all before the issue. Transmission is bad.
The contact owns a 2021 Ford Bronco Sport. The contact stated that while operating the vehicle, the instrument panel malfunctioned, with the message "Pull Over and Restart the Engine" displayed. The battery was replaced, and failure was resolved. Additionally, the contact stated while driving at an undisclosed speed, the vehicle suddenly lost motive power and stalled. The vehicle was towed to the local dealer who diagnosed that the engine was faulty and needed to be replaced. The engine was replaced, and the vehicle was repaired. The contact stated that later while driving at various speeds, the vehicle started jerking while changing gear. The vehicle was towed to the local dealer who diagnosed that the transmission was faulty and needed to be replaced. The transmission was replaced, and the vehicle was repaired. The contact stated that the vehicle later experienced a failure while attempting to accelerate, with the check engine warning light illuminated. The vehicle was driven to the local dealer who diagnosed that the catalytic converter was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was 5,000. The VIN was unavailable.
My vehicle has been jerking/hesitating upon acceleration and at times can barely move going up an incline at low speeds. This has been going on for over a year. Last year I was told by the Ford dealership that it was the RDU recall which did not make a difference, and they replaced the PTO which also did not resolve the issue. I took it back in for more diagnostics this week to the same Ford dealership and was told that the transmission was bad and required replacement - that the fluid was black with metal particles and the level was low although their regular oil changes reflect as recently as two weeks ago that the level and color of the transmission fluid was normal. No warning lamps or messages. I declined the replacement at this time as I feel that it is a manufacturer's defect. It is available for inspection.
Within a few years of purchasing my Bronco Sport, I had a grinding noise when going in reverse. Took it to dealership and they said there was no fix for it. 2 years later, I had a grinding, chatter noise again in back area of car. Dealership said a TSB had been issued and a fluid replacement and vent hose replacement was performed. A year or so later, the same issue began- chatter, grinding noise. Unable to go in reverse. Transmission failure. $7000 dollars later, my car is still not driving well. It has been back to the mechanic and each time they do a software update but problem returns.
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)
Rear wheels seems to lock up if you turn a sharp turn right or left. Rear wheels seems to slide,causing safety concern. Dealer has not been contacted. Manufacturer has not been notified. No warnings or lights
My 2021 Bronco Sport Outerbanks running at 73,000 miles, transmission has given out per Rich Ford Service Dept. I have to spend $10k plus to get it fixed. My warranty ran out. I seen a lot of people having the same issue. Transmission will not go forward or backwards. There should be a recall.
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
The contact owns a 2021 Ford Bronco Sport. The contact stated that while driving at various speeds, the vehicle was driving rough and failed to properly accelerate while depressing the accelerator pedal. The following day while driving to the local dealer, the vehicle stalled. The vehicle was towed to the local dealer who diagnosed that the transmission fluid pump had failed and there were metal shavings inside the transmission fluid. The contact was advised that the transmission needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 122,402.
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