Which parts fail
Components named in complaints (power windows, windshield, wipers, mirrors, sunroof).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2021 Ford Bronco Sport owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2021 Ford Bronco Sport. The contact stated that the windshield had fractured in the lower corner of the driver's side and extended towards the center of the windshield. The vehicle was taken to a glass specialist who replaced the windshield. The failure occurred an additional two times. The windshield was replaced by the glass specialist the second time; however, the windshield was not replaced after the third time. The vehicle was taken to the dealer, but the windshield was not replaced became the Warranty coverage had expired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The approximate failure mileage was 10,000.
The contact owns a 2021 Ford Bronco Sport. The contact stated that while attempting to open the rear windshield, the lever on the windshield detached from the vehicle. Due to the failure, the contact was unable to close the rear windshield and had to use a bungee cord to secure the windshield. The vehicle was taken to the dealer where the contact was informed that the liftgate windshield assembly needed to be replaced. The contact was also informed that the vehicle was no longer covered under warranty. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline to file a complaint. The vehicle was not repaired. The failure mileage was approximately 33,000.
The contact owns a 2021 Ford Bronco. The contact stated while driving at an undisclosed speed, the contact heard a loud sound coming from the moon roof. In addition, the contact stated that the moon roof failed to close properly. The contact stated that rainwater was entering the cabin of the vehicle during inclement weather. The vehicle was taken to the dealer; however, the vehicle was not diagnosed. The manufacturer was made aware of the failure. The contact was made aware of NHTSA Campaign Number: 21V809000 (Visibility); however, the VIN was not included in the recall. The contact was referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 20,000.
The contact owns a 2021 Ford Bronco Sport. The contact stated while driving at 60 MPH, a loud booming noise was heard. There were no warning lights illuminated. The contact was passing the railroad tracks and saw glass flying from the top of the vehicle. After the contact arrived at the residence, duct tape was used to secure the sunroof glass to take the vehicle to the independent mechanic. The dealer was made aware of the failure and provided the contact a quote for the repair. The vehicle was then taken to an independent mechanic and the vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 42,000.
The contact's son owns a 2021 Ford Bronco Sport. The contact stated that the exterior mirror housing on the driver's and passenger's side mirrors had started to melt due to sunlight exposure. The contact had called two dealers and was informed that the repair was not covered under warranty. The contact sent a letter with pictures to the manufacturer and received a letter back stating that the cost of repair would not be covered. The manufacturer was also notified of the failure by phone and the contact was referred to the NHTSA Hotline to report the failure. The vehicle had not been repaired. The failure mileage was approximately 5,500.
The contact owns a 2021 Ford Bronco Sport. The contact stated while the vehicle was parked, the contact's daughter's arm bumped into the passenger's side windshield, and the windshield was severely cracked. The vehicle was taken to an independent mechanic but was not diagnosed; however, the windshield was replaced. The contact stated on one occasion while driving 70 MPH, a small object struck the passenger's side windshield, and a large crack was formed. The dealer was not contacted, and the vehicle was not repaired. The manufacturer was notified of the failure and a case was filed. The failure mileage was approximately 38,956.
The contact owns a 2021 Ford Bronco Sport. The contact stated that she noticed a crack was formed at the bottom of the windshield. Upon taking the vehicle to a dealer for an oil change, the mechanic informed her that several cracks had formed at the bottom of the windshield. The mechanic also stated that there was an unknown recall for the failure; however, the VIN was not included. The contact stated that the cracks had expanded vertically on both sides of the windshield, obstructing the driver's vision. The manufacturer was notified of the failure. The vehicle was not repaired. The failure mileage was approximately 13,000.
The contact owns a 2021 Ford Bronco. The contact stated that while driving approximately 70 MPH, there was an abnormal vibrating sound coming from the moon roof. The contact stated that the moon roof started to bend inward and required to be held up manually. The contact then closed the moonroof. The contact contacted an independent mechanic and was informed that it was a known failure. The mechanic referred the contact to the dealer. The vehicle had not been taken to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 40,000.
The contact owns a 2021 Ford Bronco Sport. The contact stated that after driving for two hours, the vehicle was parked, and the sunroof exploded without impact. There was an abnormally loud sound heard before the sunroof exploded. There were no reported injuries. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The contact attempted to contact the manufacturer, but there were no related options for assistance. The failure mileage was approximately 65,000.
I live in northern Indiana where humidity is high in the summer. We often have nights with a low temperature in the 60s to low 70s, with heavy dew, and sometimes fog. I park the Bronco in the garage overnight, and the windows are clear in the morning. I go to work before sunrise. With the climate control (With: Manual Temperature Control) set for no, or low heat, and outside air, everything is fine till about 10 minutes into the drive. The air conditioner turns on (with no indication that it is on, except the ice cold air coming out of the vents). Then the windshield starts to fog up on the outside because of the high humidity outside and a cold windshield. There is now way to turn off the air conditioner, except to turn off the climate control. …
Related recalls
Visibility › Sun/moon roof assembly
Ford Motor Company (Ford) is recalling certain 2021 Bronco Sport vehicles. The moonroof glass may not have been bonded correctly to the moonroof frame, which could result in the glass panel detaching from the vehicle.
Remedy: Dealers will inspect the moonroof glass date code and replace the glass, if necessary, free of charge. Owner notification letters were mailed November 18, 2021.
Window & Wiper complaints in other Bronco Sport years
Frequently asked questions
How common are window & wiper problems on the 2021 Ford Bronco Sport?
NHTSA has 25 complaints about the windows, wipers & sunroof of the 2021 Ford Bronco Sport, 4% of the model year's 709 complaints. The component named most often is windshield (6 mentions).
Is there a recall for 2021 Ford Bronco Sport window & wiper problems?
Yes — NHTSA recall 21V-809 (sun/moon roof assembly, Oct 15, 2021). Recall repairs are free at authorized dealers.
At what mileage do 2021 Ford Bronco Sport window & wiper problems start?
Half of the complaints with a recorded mileage happened before about 33,000 miles, and 50% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 0 fires and 1 injury to windows, wipers & sunroof 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.