Toyota REDUNDANT SIENNA electrical problems
24 complaint narratives mention electrical terms.
Key facts
284 owner complaints analyzed
2 distinct recall campaigns
11,000 mi median reported failure mileage
Scope: 2021 to 2022 model years. Data snapshot: . 18 complaints include usable failure mileage.
Electrical and battery issues evidence
24 of 284 complaints match this topic (8.5%). The keyword filter can include complaints that mention a transmission without reporting its failure. View matching rules.
Owner report 11426402 · 2021-07-26 (July 26, 2021)
We were driving down the freeway when we got rear ended hard by a large pickup. Then we lost electrical and engine power. The brakes stopped working. The hazard lights stopped working. Luckily we were able to coast to a complete stop as there was no way to stop the car. The police came and took a report. Then the car was towed to a body shop. We're awaiting the insurance company adjuster for inspection.
Owner-reported narrative. Look up ODI 11426402 at NHTSA ↗
Owner report 11455682 · 2022-03-08 (March 8, 2022)
While driving during snowy weather suddenly smoke began to billow from steering column area and vehicle slowed down, then stopped, while simultaneously several malfunction indicators lit, I tried to restart the vehicle to pull to a berm, it was unable to restart or even shift into neutral, the vehicle lost all power and had to be towed. This alone could have caused an injury or accident. The problem was from an electrical short from a hole in the firewall made by VMI which permitted snow, road water, and road salt to enter into the cabin area o…
Owner-reported narrative. Look up ODI 11455682 at NHTSA ↗
Owner report 11467697 · 2022-06-06 (June 6, 2022)
My husband and I were pulling out of a parking lot, and needed to cross two lanes of south bound to end up in one of the two lanes of north bound traffic. Upon pulling out, the van stopped accelerating. We were stopped, sideways in the two lanes of southbound traffic. My husband checked to make sure the van was in drive, and it was. He tried accelerating a few times, and nothing happened. Finally, after about 10 seconds, the van began to accelerate once the accelerator was pressed again. He didn’t have to turn the van off or restart it or anyth…
Owner-reported narrative. Look up ODI 11467697 at NHTSA ↗
Owner report 11470424 · 2022-06-22 (June 22, 2022)
I went on a trip to Missouri to visit my son and family. When going through St. Louis on 5/18/2022 I ran through a thunderstorm with a lot of rain. After I stopped, I noticed a puddle of water between the front seats. I could not find out where it came from. Later that same day I went through another storm. Again I found a puddle of water between the seats. This is a vehicle that was modified by VMI into a handicapped accessible van. Water coming in is concerning due to all the electrical components that could be shorted out. I don't wan…
Owner-reported narrative. Look up ODI 11470424 at NHTSA ↗
Owner report 11488710 · 2022-10-10 (October 10, 2022)
My car became inoperable because Hybrid/EV Battery Voltage System Isolation Fault:Internal electronic failure.Code P0AA6-49..Well known problem to Toyota about corrosive electrical connections(cables)..which needs to be replaced under Hybrid system warranties..but dealership and Toyota refusing to replace it under warranties..even they know some owners started class action against Toyota
Owner-reported narrative. Look up ODI 11488710 at NHTSA ↗