2026 Toyota RAV4 PLUG-IN Hybrid

The contact owns a 2026 Toyota RAV4 Plug-in Hybrid. The contact stated that while starting the vehicle, several unknown warning lights illuminated. The vehicle was towed to a dealer, where it was diagnosed with an EV inverter and transmission failure. The vehicle was pending repairs and remained at the dealer. The manufacturer was notified of the failure. The failure mileage was approximately 60.

Purchased brand new vehicle. At the time of incident vehicle had 168 miles. I was driving approximately 20 miles per hour on a parkway entrance ramp with no vehicle in front of me and no vehicles approaching from behind. I accelerated gradually to merge onto the parkway. The engine kicked and the dashboard lit up with several warning indicator lights including the check engine light (see attached images). The dashboard also had the following messages displayed “ system malfunction visit your dealer, drive start control malfunction visit your dealer, AWD malfunction 2WD Mode engaged visit your dealer, check engine visit your dealer, hybrid system malfunction visit your dealer, hybrid system malfunction output power reduced, visit your dealer”. I was able to drive the vehicle home about 1 mile. Called pickup truck and had vehicle towed to dealer. Dealer kept vehicle for 6 days. In that time dealer was in communication with Toyota headquarters. On the 6th day, a mechanic from the service department called and said the vehicle was ready for pick up. When I asked why this occurred, the only thing they could attribute the incident to was the brand new battery was slightly low.

On 7/7/2026, while driving on a local road at under 600 miles from purchase (590 on odometer), the dashboard displayed a warning that something was critically wrong and instructed the driver to pull over immediately. Once pulled over, the vehicle lost the ability to shift and became fully inoperable. Multiple alerts triggered simultaneously: Drive-Start Control System, AWD System, Check Engine, Integrated System Warning (TSS malfunction), and Hybrid System. The vehicle would not power on for 15-20 minutes, after which it powered on with some functionality restored (possibly an internal reboot), though alerts remained present. It came to rest partially obstructing a live traffic lane with no ability to move further off the road, creating a collision risk. Vehicle was flatbed towed to the dealership. Dealership held the vehicle one week (7/7-7/14). Technician confirmed alerts were genuine but could not reproduce the fault after ~38 miles of test driving. Only historical communication codes detected; no active diagnostic trouble codes (DTCs) present. Vehicle was returned with no repair and no identified cause. Unsure if dealer service center contacted Toyota engineering for help. This is the second distinct electrical/software anomaly in ~5 weeks. On 6/18/2026, the traction battery dropped to 0% overnight despite being securely plugged in at 63%; the rear liftgate was also found open unexpectedly. This resolved on its own; vehicle was not serviced. Vehicle is available for inspection.

When my wife left for work the car displayed an SRS/airbag warning on the dash. It was running so she decided to go to work, but turned around after a few miles when she realized all of the driver assist systems were also disabled. When she got home I checked the battery voltage and it read 11.8 volts (I also read the DTCs, and pulled B1AC0). After charging overnight the error was gone. This vehicle is driven almost daily, was delivered to us 3 months ago, and doesn't sit with the ignition on draining the battery (my short way of saying there no behavioral or maintenance related reasons for this to occur). I have been monitoring the battery charge after drives now and putting it on the charger every night. It appears the car is chronically undercharging the battery--a known issue going back several years on RAV4 hybrids (layperson analysis here: [XXX]) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)