YearToAvoid

2010 Toyota Prius Engine Problems

NHTSA lists 435 engine-related complaints for the 2010 Toyota Prius, 16% of all complaints filed for that year, with a median failure mileage of 11,900 miles. No related recall is on file for this specific engine complaint set.

Engine complaints
435
16% of 2,757
Crashes reported
38
Fires reported
6
Injuries reported
13
Median mileage
11,900 mi
Related recalls
0

Typical engine symptoms owners report

  • Owners describe sudden unintended acceleration or surge while braking, slowing, or backing up, sometimes ending in a crash into another vehicle, curb, or structure.
  • Several reports describe the vehicle lunging forward or backward with a loud whining noise right before the incident, even at very low speeds.
  • Some drivers say the brake pedal sank further than normal or the car kept accelerating even after the brake was applied and the ignition was turned off.
  • One owner reported the surge happened moments after starting the engine, causing a collision with a parked vehicle.
  • A few incidents involved smoke or fire appearing from the engine area during or after the sudden acceleration event.

When 2010 Toyota Prius engine complaints were filed

First complaint Jan 4, 2010, latest Jul 24, 2025.

2010 Toyota Prius engine complaints: complaints filed per quarter1732010 Q12012 Q12014 Q12016 Q12018 Q12020 Q12022 Q12024 Q4
435 complaints filed with NHTSA from 2010 Q1 to 2025 Q3; peak 2010 Q1 (173).

Engine recalls for the 2010 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.

  1. 2010435 (16%)
  2. 201178 (15%)
  3. 201243 (10%)
  4. 201357 (14%)
  5. 201431 (15%)
  6. 201514 (8%)
  7. 201629 (19%)
  8. 201725 (27%)
  9. 20188 (22%)
  10. 201910 (33%)
  11. 20202 (14%)
  12. 20213 (50%)
  13. 20224 (17%)
  14. 20230 (0%)
  15. 20242 (8%)
  16. 20251 (6%)

Frequently asked questions

How many engine complaints does NHTSA have for the 2010 Toyota Prius?
NHTSA lists 435 engine-related complaints for the 2010 Prius, which makes up 16% of all 2,757 complaints filed for that model year.
Is there a recall for the 2010 Toyota Prius engine problems described here?
No related recall is listed in NHTSA data for this specific set of engine complaints.
At what mileage do these engine problems typically show up?
The median mileage at failure reported to NHTSA for this engine issue is 11,900 miles.
Did the 2010 Prius engine complaints lead to any crashes or injuries?
NHTSA data tied to these engine complaints show 38 crashes, 6 fires, and 13 injuries reported.
Is the 2010 Prius worse than other years for engine complaints?
Yes, the 2010 model's 16% share of complaints tied to the engine is higher than most other Prius model years listed, such as 2012 at 10% and 2015 at 8%.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.