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Vehicle speed controlPart report

2011 Toyota Prius Vehicle speed control Problems

Complaints
28about this part
Share
5%of 522 total for the year
Median mileage
21,000miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 28 complaints about the vehicle speed control of the 2011 Toyota Prius, 5% of the 522 complaints for this model year. Where a mileage was given, the median is 21,000 miles. 3 of these say a crash was involved, according to the filers.

Example complaints

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

“A check hybrid system alert came on and included lit break, check engine, steering, ABS, skid and yellow triangle with an ! Mark inside. The car stopped and I could not move it. Good thing I was on a side street with light traffic. This happened again after the inverter was replace; and it happened again after the 12 v battery was replaced.”

NHTSA complaint #11403403, filed 2021-03, 3 miles

“This is the second complaint for the same vehicle and the same complaint. The first occurred 11/11/2016. I was making a right hand turn into a parking spot in the same parking lot. As I turned into the spot and released my foot from the accelerator my car accelerated. This time I was able to stop the vehicle before striking another car or the handicapped ramp.”

NHTSA complaint #10995694, filed 2017-06, 89,000 miles

“Making right turn into a parking spot and the car accelerated striking a parked car to my right and my car was stopped by a cement handicap ramp. There was extensive front end damage to my car, as well as the front passenger door. The car on my had the right front bumper removed and the wrought iron railing on the ramp severely dented.”

NHTSA complaint #10995691, filed 2017-06, 87,000 miles

“Break actuator is failing in my 2011 Toyota Prius. The car now has a unpredictable ABS breaking system. Sometimes the breaks work and sometimes they quickly fail and a error light comes on. The light than goes out as if nothing happened and all is fine. This is a very dangerous problem that will lead to many accidents because the vehicle tells you its good to go, mean while the ABS system is failing to stop the vehicle intermittently. I am scared because I dont know if the car will do this on a turn then lose control injuring myself and others.”

NHTSA complaint #11406997, filed 2021-04, 217,000 miles

“In motion while accelerating past a slower car. Heard and felt a pronounced thump and lost engine power on busy local thoroughfare. Moved to a turn lane and stopped. Multiple dashboard lights and check hybrid system on LED display. Power off car, and back on twice and got the same error on display. Found that car could move on EV power and I got it into a safer location at an adjacent parking lot. Had vehicle towed to repair facility. As a driver this was disconcerting as I could not clearly determine if the car was at all driveable. …”

NHTSA complaint #11141949, filed 2018-10, 113,000 miles

Related service bulletins

Vehicle speed control: other model years

YearComplaintsShare of year
202516%
202427%
202214%
2021117%
202017%
2019413%
2018411%
20171314%
2016149%
201574%
2014147%
2013225%
2012133%
2011285%
201028710%
20097114%
200815610%
20071246%
2006846%
200510910%
2004529%
200355%
2002127%
20012515%

Other parts of the 2011 Toyota Prius

Brakes
278 complaints
Electrical system
68 complaints
Exterior lighting
48 complaints
Engine
47 complaints
Air bags
46 complaints
Other or unknown
30 complaints
Transmission and drivetrain
18 complaints
Electronic stability control
16 complaints
Visibility (wipers, defrost, mirrors)
13 complaints
Fuel system
11 complaints
Hybrid propulsion system
10 complaints
Body and structure
9 complaints

← All problems reported for the 2011 Toyota Prius

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