Skip to content
Engine coolingPart report

2021 Ford Bronco Sport Engine cooling Problems

Complaints
24about this part
Share
3%of 712 total for the year
Median mileage
57,000miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 24 complaints about the engine cooling of the 2021 Ford Bronco Sport, 3% of the 712 complaints for this model year. Where a mileage was given, the median is 57,000 miles. 2 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The contact owns a 2021 Ford Bronco Sport. The contact stated that while driving at an undisclosed speed on two separate occasions, the turbocharger became inoperable. The contact reported hearing a knocking sound coming from the engine at the time of the failures. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and advised the contact that the remedy was not available to complete the repair. The approximate failure mileage was 80,000.”

NHTSA complaint #11742985, filed 2026-06, 80,000 miles

“The contact owns a 2021 Ford Bronco Sport. The contact stated that while her son was at a stopped at a traffic light, the vehicle shut off without warning, and started to roll backwards. The contact's son applied the parking brake and later restarted the vehicle. The contact stated that upon restarting the vehicle, several warning lights illuminated. The vehicle was taken to the dealer and the contact was informed that the battery was drained. …”

NHTSA complaint #11627253, filed 2024-11, 57,000 miles

“The contact owns a 2021 Ford Bronco Sport. The contact stated that the vehicle failed to start. There was no warning light illuminated. The vehicle was not drivable. The vehicle was towed to the local dealer, where it was diagnosed that the front belt and two coolant hoses needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 37,000.”

NHTSA complaint #11478925, filed 2022-08, 37,000 miles

“The contact owns a 2021 Ford Bronco Sport. The vehicle was taken to Take 5 Oil Change for an oil change, and the contact was informed that the coolant reservoir was empty. The vehicle was taken to Ritchie Automotive, where it was diagnosed that the water pump had failed and needed to be replaced. The vehicle was not repaired. The dealer was notified of the failure and referred the contact to the NHTSA Hotline to report the failure. The manufacturer was not contacted. The failure mileage was approximately 80,000.”

NHTSA complaint #11725042, filed 2026-03, 80,000 miles

“The contact owns a 2021 Ford Bronco Sport. The contact stated that while her daughter was driving at an undisclosed speed, the vehicle inadvertently lost motive power and was unable to accelerate above 30 MPH. The failure persisted; however, the contact was able to drive to the intended destination. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with turbo charger. The contact was informed that the turbo charger needed to be replaced. The vehicle was not repaired. …”

NHTSA complaint #11671668, filed 2025-07, 70,000 miles

Related recalls

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2026113%
202538%
202422%
202321%
202292%
2021243%

Other parts of the 2021 Ford Bronco Sport

Electrical system
212 complaintsTransmission and drivetrain
191 complaintsEngine
152 complaintsBrakes
127 complaintsFuel system
124 complaintsOther or unknown
101 complaintsVisibility (wipers, defrost, mirrors)
26 complaintsSuspension
24 complaintsSteering
16 complaintsForward collision avoidance
15 complaintsVehicle speed control
13 complaintsExterior lighting
10 complaints

← All problems reported for the 2021 Ford Bronco Sport

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology