definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
27,147 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2014 Toyota Prius engine problems

engine problem

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2014 Toyota Prius Owner Comments

problem #3

Jul 112016


  • 19,483 miles


Headlights and cabin lights failed to turn off when remote lock was activated. Lights were then turned off manually. Five hours later, in the parking lot, the car was nearly completely dead. Last time it happened, we left it and it recharged itself. This time, it did not recharge itself; it was completely dead the next day. We had to have it towed to the dealership, who "jumped" it and let it sit overnight. They say it now has no problem.

- Westerville, OH, USA

problem #2

Aug 042015


  • 53,101 miles
Within the last six months, and about four times, I had experienced rough/high idling during hot days and after driving over 80 miles; using air conditioning. (I work over 70 miles from home.) I decided to take the car to the Toyota of redlands dealership on August 4, 2015, because the car was displaying the same conditions. While on the way to the dealership, and on the freeway, the car began to idle heavily. I merged to exit the freeway and while on the off ramp, stopped, the car completely shut off. The display read "check hybrid engine. Stop park the car safely." I was able to restart the vehicle to move from off-ramp traffic and park it. The message on display was still there. I shut off the car and called the dealership. They recommended I have the car towed to them. When tow truck arrived, I turned on the car to position it for the towing bed. The message no longer displayed. The car stayed with dealership all day on August 5, 2015. According to the dealership, the display showed no message and there is no code to indicate a malfunction occurred. They were not able to diagnose the problem. I am keeping the vehicle at the dealership on August 6, 2015, for further evaluation. My concern is two-fold: 1. my safety, 2. if the system displayed a message, why does the system not produce a code for the technicians as a non-hybrid car would? this itself presents a serious issue.

- Highland, CA, USA

problem #1

Apr 082014

Prius 4-cyl

  • 8,858 miles
While driving on the freeway at highway speeds a series of yellow triangles suddenly flashed on the dashboard along with some beeps. The engine then stalled and the gas pedal no longer responded to any inputs. Due to a combination of sheer luck and driver presence of mind the car was steered to the shoulder of the highway where it came to a halt. The experience of trying to control a car with a stalled engine and safely steer it to the shoulder in heavy traffic was terrifying to say the least. The car was taken straight to the dealer where it was left for service. After diagnosis a couple of days later the dealer called back and said that the engine control module had failed which is why the engine had stalled. The car is still with the dealer since the part is not available and needs to be shipped from Toyota. The dealer claimed that this was such a rare occurrence that they did not have the parts available. They also claimed that they did not know anyone else for whom this had happened. Maybe so but this was an incident that could have been fatal. The fact that nobody got killed is just plain luck.

- Palo Alto, CA, USA

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