2011 Toyota Prius Engine Problems
NHTSA lists 78 engine-related complaints for the 2011 Toyota Prius, about 15% of the 519 total complaints filed for that model year. No recall is linked to this engine complaint category. Typical failure mileage sits at a median of 88,000 miles.
- Engine complaints
- 78
- 15% of 519 complaints
- All complaints this year
- 519
- Crashes reported
- 4
- Fires reported
- 2
- Injuries reported
- 0
- Median mileage
- 88,000 mi
- Related recalls
- 0
Typical engine symptoms owners report
- Owners describe a sudden, unexpected acceleration or forward lurch while braking or parking at low speed, sometimes ending in a crash into a pole, bumper, or parked object.
- Several drivers report a loud knocking or rattling noise from the engine compartment on cold starts, especially after the car sat outside in freezing temperatures, which faded after seconds or after a restart.
- Some owners report the vehicle suddenly losing power and dropping from highway speed to a crawl without warning.
- A smaller number of complaints describe smoke, a burning smell, or an explosion-like sound from under the hood followed by an engine fire.
- One owner reported delayed throttle response paired with the cold-start knocking noise, requiring the engine to be shut off and restarted.
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
- Does the 2011 Toyota Prius have an engine recall?
- No. NHTSA does not list any recall tied to the engine complaint category for the 2011 Toyota Prius in this data.
- How common are engine complaints on the 2011 Prius?
- NHTSA lists 78 engine complaints for the 2011 Prius, which is 15% of the 519 total complaints filed for that model year.
- At what mileage do engine problems typically show up on the 2011 Prius?
- The median mileage at failure among reported engine complaints is 88,000 miles.
- What kind of engine problems do owners describe?
- Owners describe sudden unexpected acceleration or lurching, loud knocking noises on cold starts, sudden loss of power at highway speed, and in a few cases smoke or fire from the engine bay.
- Were there any injuries or fires linked to these engine complaints?
- NHTSA data shows 4 crashes and 2 fires tied to engine complaints for the 2011 Prius, with 0 injuries reported.