Table 1 shows two common power train related problems of the 2018 Toyota Sienna. The number one most common problem is related to the power train (15 problems). The second most common problem is related to the transmission stuck in gear (one problem).
| Problem Category | Number of Problems |
|---|---|
| Power Train problems | |
| Transmission Stuck In Gear problems |
Since owning my 2018 Toyota Sienna, I have experienced hesitation and erratic shifting with my transmission. I have the ua80e transmission which upon research others are experiencing issues with as well. It appears Toyota is not fully acknowledging the problem. Read details...
The van struggles to accelerate. There is no way to turn off eco mode. No button is available. Van struggles to go up hills , excelerate thru intersections and always hunting for gears or stuck in a gear and sounds and acts very heavy on power train end. There is an option to turn off eco light. Read details...