2010 Ford Focus
Common Problems
Ranked from 181 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
Throttle body failure causing loss of power and 'limp mode'
71complaintsHigh severityEngineThe throttle body fails intermittently, causing sudden loss of power, illumination of the wrench or check engine light, and forcing the vehicle into 'limp mode'. Restarting the vehicle temporarily resolves the issue.
$150–$1,200est. stalling / shutdown diagnosis + repair · 1–5 hrs laborGet local quotes - 2
Rear doors fail to unlock or open from inside or outside
45complaintsSafety riskElectricalRear doors become locked or unresponsive to manual or remote unlocking, posing a safety risk in emergencies.
- 3
Suspension instability causing vehicle sway and tire wear
18complaintsMedium severitySuspensionThe vehicle exhibits excessive swaying, especially at higher speeds or in wet conditions, leading to premature tire wear and poor handling.
$150–$1,200est. suspension diagnosis + repair · 1–5 hrs laborGet local quotes - 4
Transmission Shifting Failure or Neutral Engagement
17complaintsHigh severityTransmissionThe transmission fails to shift properly or unexpectedly shifts into neutral while driving, causing loss of power and requiring repair or replacement.
$200–$2,500est. drivetrain diagnosis + repair · 1–8 hrs laborGet local quotes - 5
Electrical System Malfunction (Lights, Locks, or Sensors)
10complaintsMedium severityElectricalElectrical components such as door locks, lights, or sensors malfunction intermittently or fail entirely.
- 6
Air Bag Failure or Non-Deployment During Collision
9complaintsSafety riskOtherAir bags fail to deploy during collisions, increasing injury risk.
- 7
Ignition Switch or Key Failure
9complaintsMedium severityElectricalThe ignition switch fails to start the engine or turns off unexpectedly, requiring key wiggling or replacement.
- 8
Brake Failure or Delayed Response
5complaintsSafety riskBrakesBrakes fail to respond promptly or cause unintended acceleration, leading to crashes.
$150–$1,000est. brake system diagnosis + repair · 1–4 hrs laborGet local quotes - 9
Tire sidewall splitting without apparent cause
4complaintsMedium severityOtherTires exhibit splitting along the inner sidewall, even with low mileage and regular maintenance, indicating potential manufacturing defects.
- 10
Air conditioning system fails to cool
3complaintsMedium severityEngineThe air conditioning system fails to provide adequate cooling, requiring extensive repairs involving removal of interior components.
$800–$1,600est. a/c compressor replacement · 3–6 hrs laborGet local quotes - 11
Lug Nut Failure or Loosening
3complaintsMedium severityOtherLug nuts swell or loosen unexpectedly, requiring replacement for safety.
- 12
Power steering failure or noise during turns
3complaintsMedium severitySteeringThe power steering system fails intermittently or makes grinding noises during turns, reducing driver control.
$200–$1,500est. power-steering / eps repair · 1–6 hrs laborGet local quotes - 13
Strong gasoline odor inside cabin and trunk
3complaintsMedium severityFuel systemA strong gasoline smell is intermittently detected inside the passenger compartment and trunk, indicating a potential fuel system leak.
- 14
Engine mounts fail causing excessive vibration and noise
2complaintsMedium severityEngineFailed engine mounts cause excessive vibration and rattling, especially noticeable at idle or during acceleration.
$250–$700est. engine mount replacement · 1.5–4 hrs laborGet local quotes - 15
Sunroof Glass Shattering Without Cause
2complaintsMedium severityOtherThe sunroof glass shattered while driving at highway speeds without impact or apparent cause.
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.