2015 Toyota Prius: won't start

Filed Mar 20, 2026 · Brakes · NC

My brake actuator and brake booster are failing. All of my dashboard lights have come on (brake, ABS, Traction Control, brake system warning light). Unfortunately, I am over 10 years and Toyota is saying that I need to pay out of pocket for the repairs. This is a known problem and should be covered. I was unaware of the known issue and my car didn't start having problems until after the 10 year mark. I am under 150,000 miles.

Filed Jun 23, 2023 · Electrical · IN

When I parked my car and stopped the engine after driving for 90 min/62 miles on June 22, 2023, I found that I couldn't lock my car's door, through my remote, door handle or the switch inside the door. Upon further examination, I saw complete loss of the power: no light, no audio, no other accessory power, no start of engine. Foot press on the brake feels heavy/less responsive. One hr after the incident I went back (because I had some business to attend) to the car, everything looked normal (with full functions recovered) as if nothing happened before. 6 hrs later the car still behaved fine. I measured 12-v battery and it registered 12.3 v (I bought the car new 8 years ago and I haven't changed the battery yet). I noticed that my the clock in the car lost 10 mins (behind correct time) and I concluded the complete loss of battery power lasted about 10 mins. By the time of this report, I have started the engine 5 times without any problem but this loss of power gravely concerns me. I saw recalls for similar problems affecting similar prius models/years however my car is not on the list.

Filed Sep 25, 2021 · Brakes, Electrical · CA

As stated from 5 months after we bought it, and the first prius, the car won't start. No matter if parked flat, keys in or out over night, or the temp, when the break is pushed it is squishy and makes draining noise and won't start. As a dr on call i have LOST patients because I could not leave my house. i carry and use the charger daily ever since. Taken in lots. they say, "you don't drive enough..or some other bogus excuse, like don't leave keys in car, which is how priuses start and run!. the car is driven in all ways a lot. also we buy headlights and headlamps on both about every 2 months. also it looses power and has shut off while driving. the worst is when it would start on its own in the locked garage. at that point my wife just quit driving all together. nothing but nightmares. She almsot crashed on fw when power went out.

Filed Jan 13, 2016 · Electrical, Transmission · 4,580 miles · NY

Car was stationary in driveway car would not start and master warning light was on in addition to a warning saying "shift malfunction. When parking, park in flat place and apply parking brake securely" a buzzer was sounding. This indicates a shift control system error. The car would not start. Notified dealer and the car was towed. No error codes were found. The car started for the dealer.

Filed Oct 12, 2015 · Electrical · 575 miles · NY

Within a 6 day period, the main 12 volt battery died and the car which was only 3 weeks old would not start. Also the cable used to charge the hybrid battery trips the circuit breaker in my house each time even though it is a ground fault outlet and a 20 amp breaker. I had to call out a tow truck to jumpstart the battery both times. Car was parked and directions were followed exactly for charging it. I took it to the dealer who found nothing wrong and was told I should have a dedicated line to charge the car, even though I wasn't told this by the salesman. The electric service in my garage in brand new. This is ridiculous to go to this expense and not be told in advance, and to have a new battery need charging. It had to be charged before I could even test drive the car but that did not matter. I was told I could not get a new battery as it tested "good".