There are 3 stored owner reports matching the powertrain & transmission leading-label group for the 2020 Toyota Prius Prime in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)I was driving yesterday on Freeway in the 2nd lane ,all of a sudden car went from drive to neutral,I didn't touch transmission gear lever and I put gas And it says it is on neutral N,I was in dangerous situation, the other cars were flying by,I put on hazard lights Slowly changed lanes because it was not on D drive mode,pulled it over to Shoulder applied brakes and shift to D Then proceeded back to freeway, I was very scare in this whole ordeal
The contact owns a 2020 Toyota Prius Prime. The contact stated that while coasting her vehicle into a parking spot at 2 MPH, the vehicle independently accelerated forward with her foot lightly on the accelerator pedal. The vehicle jumped the curb and crashed into two vehicles. The contact was uncertain if any warning lights illuminated on the instrument panel during the failure. The air bag did not deploy upon impact. Police were called to the scene; however, since no injuries or property damage were reported, they informed that contact that they would not be needed. The contact had the vehicle towed to an independent mechanic where it remained in their possession. A dealer was notified and offered no assistance. The manufacturer was also notified and informed her that she would receive a callback. The vehicle had yet to be repaired. The failure mileage was approximately 6,000.
MICE CHEWED THROUGH WIRES AND AIR FILTER, CAUSING DAMAGE TO THE HYBRID SYSTEM. THE CHECK HYBRID SYSTEM WARNING SIGN CAME ON AND THE CAR RUNNING ROUGH. TOYOTA DEALER CHARGED $13066.81 FOR THE DAMAGE.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 29, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.