2021 Ford F 150 Super Cab Diesel
Common Problems
Ranked from 352 federal NHTSA complaints. Every problem links to the complaint IDs behind it.
15 Common Problems
Ordered by how often owners reported each one to NHTSA. The bar shows how common a problem is relative to the most-reported on this vehicle. Expand any problem to see the federal complaint IDs.
- 1
Axle Bolt Failure
186complaintsHigh severityTransmissionAxle bolts break, causing instability and potential for increased wear on connected components.
$200–$2,500est. drivetrain diagnosis + repair · 1–8 hrs laborGet local quotes - 3
Transmission Hard Shifting and Jerking
63complaintsHigh severityTransmissionThe transmission frequently shifts hard and jerks, causing potential loss of control and accidents.
$200–$2,500est. drivetrain diagnosis + repair · 1–8 hrs laborGet local quotes - 4
Visibility Issues
45complaintsHigh severityOtherWindshields crack easily or windshield wipers fail to operate, reducing visibility.
- 5
Driver Side Door Freezing
5complaintsLow severityOtherDriver side door freezes in the lock position, preventing entry or exit from the vehicle.
- 6
Electrical System Issues Leading to Safety Warnings
5complaintsMedium severityElectricalElectrical system issues trigger safety warnings, such as 'parking brake fault' or 'brake service required'.
- 7
Fuel system issues leading to engine stalling and power loss
5complaintsHigh severityFuel systemThe fuel system causes engine stalling, power loss, and jerking during acceleration, often due to faulty fuel pumps or gasolines.
$150–$1,200est. stalling / shutdown diagnosis + repair · 1–5 hrs laborGet local quotes - 8
Parking Brake Malfunction
5complaintsMedium severityOtherParking brake malfunctions, causing the vehicle to fail to engage or disengage properly.
$150–$1,000est. brake system diagnosis + repair · 1–4 hrs laborGet local quotes - 10
Axle failures leading to loss of power and vehicle instability
3complaintsHigh severityTransmissionAxle failures result in loss of power, vehicle instability, and potential rollaways, posing a significant safety risk.
$200–$2,500est. drivetrain diagnosis + repair · 1–8 hrs laborGet local quotes - 11
Engine Misfire
3complaintsMedium severityEngineThe engine misfires, often due to faulty spark plugs or other ignition components, leading to rough running and reduced performance.
$200–$900est. ignition service (coils/plugs) · 1–4 hrs laborGet local quotes - 12
Steering System Failure
3complaintsMedium severitySteeringThe electric steering system occasionally fails, causing the vehicle to become difficult to steer.
- 13
Transmission Failure
3complaintsHigh severityTransmissionThe transmission fails completely, resulting in a loss of power and the vehicle becoming undrivable, often due to internal mechanical issues.
$2,500–$5,500est. transmission rebuild/replacement · 8–16 hrs laborGet local quotes - 15
Visibility and wiper system failures leading to reduced visibility
2complaintsLow severityOtherVisibility and wiper systems fail, reducing the driver's ability to see clearly, especially in adverse weather conditions.
Other years & sources
Data source: U.S. National Highway Traffic Safety Administration (NHTSA) owner complaints and recalls. Problems are clustered and ranked from the complaint record; occurrence counts reflect corroborating complaints, not total incidence. Vehicle image is illustrative. Repair-cost figures are typical U.S. independent-shop ranges (parts + labor) for the class of repair shown — actual quotes vary by region, engine, and diagnosis; always confirm with a local shop.