2023 Toyota Prius Prime Complaint Log

There is an unexplained loss of 12V power from the 12V battery, and the car will not start. This was reported to the local Toyota dealership on 12/5/25. The car had to be jumped in order to drive it to the dealership/service department. They said the 12V battery was fully charged when they inspected it and there was no parasitic drain on the the battery. They inspected the battery again on 12/30/25 during a routine scheduled service and the 12V battery was good. We have since experienced the inability to start the car on the following dates: 1/10/2026, 2/5/2026, 2/20/2026, 2/22/2026, 2/23/2026. On each of the before mentioned incidents that car had to be jumped by an auxiliary battery pack to get the car to start. We have contact the Toyota dealership again and have a scheduled appointment for 2/25/2026. The dealership had told us that the battery has check out good earlier and they can't replace the 12V battery under the 3 year/36,000 warranty and will need to get Toyota Corporation involved. The car presently has 31,682 miles and it was purchased on 9/19/2023.

The contact owns a 2023 Toyota Prius Prime. The contact stated that upon approaching the vehicle after it had been parked and turned off in the garage, the contact noticed that the hatch door was opened. The contact stated that upon pressing the power button on the hatch and the hatch door power button inside the cabin to close the hatch door, the hatch door failed to close. The manufacturer was notified of the failure and advised the contact to call Roadside Assistance. The contact called Toyota Roadside Assistance who advised the contact to attempt to close the hatch manually. The contact was able to close the hatch door manually. The dealer was not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 7,920. The VIN was not available.

The contact owns a 2023 Toyota Prius Prime. The contact stated while driving 40 MPH with the headlights activated, the low-beam headlights were not providing adequate illumination to light the sides of the roadway properly. The contact stated that shadows were projected to the side of the road from the headlights. The contact had taken the vehicle to a dealer who diagnosed the vehicle and determined that the headlight housing was causing the low beams to be partially shaded. The dealer was informed that when the high beam headlight was activated, the light from the headlight was not casting shadows and the side of the road was lit. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was 9,176.