Table 1 shows four common electrical system related problems of the 2015 Toyota Sienna. The number one most common problem is related to the electrical system (37 problems). The second most common problem is related to the software (two problems).
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems | |
| Software problems | |
| Instrument Panel Speedometer/odometer problems | |
| Wiring problems |
In August 2025, autonation Toyota on sahara, checked the VIN of my Toyota Sienna and contacted Toyota while I was present. Toyota confirmed a broken fuel-door hinge was covered under a customer support program. Instead, autonation attempted to repair, rather than replace, the hinge. Read details...
Van would reboot while parked or driving. It started with dashboard rebooting then I couldn�t start the van. There was a time after driving I put the van in park and turned it off but my van was moving on it�s own. I always call the dealership when the rebooting occurs. Read details...
Odometer fraud. The contact purchased a 2015 Toyota Sienna. The vehicle was a private sale. The contact stated that at the time of purchase, the mileage was 92,862. The contact later purchased a carfax report which indicated that the last odometer report in 2024 showed that the mileage was 205,000. Read details...