general problems of the 2019 Toyota Prius

The contact owns a 2019 Toyota Prius. The contact stated there was a coolant leak and the coolant level was low. There was no indication of coolant on the ground. The check engine and engine hot warning lights were illuminated. The contact stated that the failure was related to TSB: 0135-19. The vehicle was taken to the local dealer where it was diagnosed that there was a coolant leak in the front exhaust pipe heat exchanger. The parts to repair the vehicle were on backorder. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 95,000.

Exhaust heat-exchanger coolant pipe (part of the hybrid cooling loop) on my 2019 Toyota Prius is the system that failed. Safety risk: complete loss of coolant can cause sudden engine overheating and possible power reduction or shutdown while the vehicle is moving. I transport two young children daily; an unexpected stall on a highway or during an intersection turn would put all occupants and surrounding traffic at risk. Autonation Toyota mall of georgia (dealer) inspected the car on 22-may-2025, confirmed the leak, and advised the vehicle is unsafe to drive until the pipe is replaced. Repair estimate is $2,249 parts & labor to replace the front exhaust pipe that is on back order, no eta. Toyota corporate (brand engagement, case # 250522002498) is aware; they escalated the file to their parts department because the replacement pipe is back-ordered with no estimated arrival date. No other agencies or insurers have inspected the vehicle. Two days before the dealer visit, the warning symbol began flashing briefly at breaking then for longer intervals while driving. On the morning of 22-may-2025 the lamp was flashing more often and longer prompting the service appointment. Dealer found the coolant reservoir completely empty. No prior warning messages had appeared.

On Saturday February 17, while shifting to reverse in a back alley to back up slowly, the car engine suddenly and loudly revved and shot backwards at accelerating speed. I slammed on brakes which did not respond at all, thus forcing me to attempt to shift gears which also failed to stop the acceleration. Car only stopped because it went up a curb and hit the corner of a parked vehicle in a neighbors driveway. If I had been on busier street and not a back alley this could have resulted in numerous vehicle collisions and unimagined fatalities. Car is being towed on 2-19-2024 to advanced collision repair on 4511 central Ave, columbia heights, for diagnostic assessment. There were no warning lamps, messages or other indicators prior to this terrifying lack of vehicle control . This was first episode since purchasing car approx one year ago. Incident was captured on neighbor’s home camera. Other neighbor heard the revving and ran out due to spontaneously loud revving of an engine.

I bought a brand new 2019 Prius from the dealership that I work at. Only a month later, the pre collision system started become unavailable and the engine started making a loud cranking noise. I took it to Toyota and they told me that the pcs milimetre wave sensor was missing from the car. They also did not want to fix the engine problem or even look into it despite still having warranty left.

Bought a new 2019 Prius from grossinger Toyota on 9/13, went back to the dealer on 9/16 to get my old city sticker from my old car (this new car only had 61 miles), the new car broke while I was there. The entire dashboard went off (blinders cannot be turn on. No indication of speed, no indication of vehicle level, etc). Anything that's on the dashboard went blank. I turned on and off the new card a few time, but the result was the same. Toyota technician couldn't figure out what went wrong themselves. When that happened, I was just about ready to leave the dealer, then I quickly went back to show the grossinger dealer.