Electrical Equipment Problems of Toyota Sienna

A plug-in battery charger failed. You may inspect it. It got hot and smoked, and I suppose was a fire hazard. The problem has not been confirmed nor inspected. There were no symptoms of the problem before the failure. - - - - I used the automotive charger to charge a battery after a light had been on overnight, discharging the battery. I removed the battery from the vehicle because the terminals might have been corroded. When I first put the charger on the battery it indicated full and did not start to recharge it, so I used jumper cables to charge the discharged battery from a good battery in my car and left the charger at 10 amps on the good battery at the same time so that battery would not become discharged. I left it to sit, figuring it would take several hours at that setting, and after about 5 minutes I saw smoke. Both 12v wires were hot and insulation burned or melted off. There is damage to the car where the wires rested on the painted plastic bumper and a plastic bit near the battery, and of course the charger is useless. I wrote to the manufacturer on March 28 to make them aware, and ask how to avoid it in the future, and ask if it can be repaired. I have not heard back. . Read more...

See all problems of the 2003 Toyota Sienna 🔎.

Master head unit, including navigation, rear camera, bluetooth, and stereo, stopped working. It makes a clicking noise but the screen is dead and does not respond at all. Appears to be from a design defect that causes overheating of the unit over time. Multiple reports of similar failures are all over the internet. This is a significant safety issue as the rear camera, bluetooth, and navigation are all important items for extra safety in operating the vehicle. I think most people would expect that a non-mechanical part (like the radio/head unit) would last longer than 6 years, especially when it cost several thousand dollars.

See all problems of the 2006 Toyota Sienna 🔎.

The van was sitting in the garage. When the door was opened with the remote control device, the cable broke and jammed the door opened. It took 1 hour to get the door closed. It has been jammed shut every since. The cost to repair it is $1500.

See all problems of the 2004 Toyota Sienna 🔎.

All the above data is an estimate becuase we are waiting for copies of all maintenance and repair records from Toyota - - but we have had multiple problems with this vehicle including screeching brakes, left veer when driving, bad transmission (replaced twice),smog check failure due to oxygen sensor and/or engine problems, clunking noises in engine, a shuddering of vehicle when driving or braking. The car has been at dealers for as long as 3 weeks; dealer admits not knowing what is wrong. Failed.

See all problems of the 1999 Toyota Sienna 🔎.