2011 Toyota Prius Engine Problems
NHTSA lists 78 engine complaints for the 2011 Toyota Prius, 15% of its 519 total complaints that year, with a median failure mileage of 88,000. No engine-related recall is on file for this problem area.
- Engine complaints
- 78
- 15% of 519
- Crashes reported
- 4
- Fires reported
- 2
- Injuries reported
- 0
- Median mileage
- 88,000 mi
- Related recalls
- 0
Typical engine symptoms owners report
- Vehicle suddenly accelerates on its own while parking at low speed, striking bumpers, poles, or parked cars.
- Engine loses power abruptly during acceleration or highway driving while a "check hybrid system" warning appears on the dash.
- A loud knocking noise comes from the engine compartment at cold start, especially after sitting in cold weather, and fades after several seconds.
- Owners report a burning smell, a loud explosion-like sound, and black smoke from under the hood while driving, in some cases followed by fire.
- A water leak inside the cabin was traced to a blocked HVAC drainage hose under the hood.
When 2011 Toyota Prius engine complaints were filed
First complaint Apr 18, 2011, latest Sep 22, 2026.
Engine recalls for the 2011 Toyota Prius
No safety recalls on record for this model year.
Engine complaints by Prius model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How many engine complaints does NHTSA have for the 2011 Toyota Prius?
- NHTSA lists 78 engine complaints for the 2011 Prius, which is 15% of the 519 total complaints filed for that model year.
- Is there a recall for 2011 Toyota Prius engine problems?
- No related recall is listed in NHTSA data for the engine problem area on the 2011 Toyota Prius.
- At what mileage do engine problems usually show up on the 2011 Prius?
- NHTSA complaint data shows a median failure mileage of 88,000 miles for engine-related issues on the 2011 Prius.
- Have engine problems on the 2011 Prius caused crashes or fires?
- NHTSA data tied to this problem area lists 4 crashes and 2 fires, with 0 injuries reported for the 2011 Prius.
- How does the 2011 Prius compare to other years for engine complaints?
- The 2011 Prius had 78 engine complaints (15% share), close to the 2010 model's 435 complaints (16% share) and higher in raw count than most later Prius years like 2015 with 14 complaints (8% share).