2014 Toyota Prius C Vehicle speed control Problems
- Complaints
- 4about this part
- Share
- 12%of 33 total for the year
- Median mileage
- 37,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the vehicle speed control of the 2014 Toyota Prius C, 12% of the 33 complaints for this model year. Where a mileage was given, the median is 37,500 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I live in durango colorado. The traction control function deemed to be dangerous last winter. My vehicle was spinning out on ice covered highways and I could not turn this function off. Newer vehicles have the ability to turn this function off in order to avoid this issue. This is very dangerous. I almost got hit by semi truck.”
NHTSA complaint #10927342, filed 2016-11, 1 miles“I turned on my vehicle and when I switched gears, from park to drive, it did not register that it was in drive. When I tried to drive away, there was no acceleration and lack of power. My battery was operating at almost max capacity.”
NHTSA complaint #11310098, filed 2020-02, 75,000 miles“Brake failure / Unintended Acceleration / Unknown cause Driving at approx 25mph on urban street (road in good condition no potholes, ramps, etc) I began to slowly brake as I approached a red traffic light. Instead of braking, the car began to accelerate quickly. I pressed the brake pedal again - no response. Pressed down hard for a third time which executed an emergency stop. This all happened within 1 or 2 secs. There were no injuries or involvement of other cars on this occasion. However, had I been any closer to the car in front, I believe I would have rear-ended it. …”
NHTSA complaint #11429735, filed 2021-08“Cruise Control Not Working. Traction Control Light Active, Brake Light Active, And Light Active The cause was diagnosed by Toyota of Paris. TSB for C1391 Code abnormal leak in accumulator. The corrective action is to replace brake booster assembly with Master cylinder and Brake Booster pump Assembly.”
NHTSA complaint #11673351, filed 2025-07Related service bulletins
- 10244113Aug 17, 2023TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most…
Vehicle speed control: other model years
Other parts of the 2014 Toyota Prius C
9 complaintsOther or unknown
8 complaintsEngine
7 complaintsElectrical system
6 complaintsAir bags
3 complaintsExterior lighting
3 complaintsSteering
3 complaintsWheels
3 complaintsBody and structure
2 complaintsTransmission and drivetrain
2 complaintsElectronic stability control
1 complaintsFuel system
1 complaints
← All problems reported for the 2014 Toyota Prius C
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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