Three problems related to wiper have been reported for the 2021 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 Toyota Sienna based on all problems reported for the 2021 Sienna.
2021 Sienna hybrid platinum awd ~65k miles. Safety issue: fogging of windows increased, as ac was not working properly. Believe rear ac lines had galvanic corrosion from differing metals, steel bracket with aluminum line-sets causes corrosion hole in refrigerant line set, and leak causing loss of all freon. No warning lights or messages, ac just stop blowing cold. Vehicle is driven in michigan on winter roads with road salt, but stored in garage and only 4 years old. $1742 fix to replace line-sets, which can corrode again without proper design fix. Problem confirmed by dealer, and seen in other similar year Sienna's.
My van been giving me some weird issues lately. When I’m going downhill, my brakes don’t seem to work well! I have to push it all the way down, like a spongy. It doesn’t break until I put on the emergency brake. The seat broke only weighed 185 pounds! the wiper blades don’t do a great job cleaning the driver’s side after I bought new ones. Dealership wipers.
With the rear seat entertainment system in use, the rear visibility is completely blocked in conjunction with the standard rear view mirror. This is a major design defect and is avoidable with available options that should be standard. Without being able to utilize all possible ways to view around the vehicle, Toyota has put its owners, occupants, and fellow drivers at unnecessary risk. An easy remedy is Toyota retrofitting and including going forward their digital rear view mirror.
| Wiper problems | |
| Sun/moon Roof Assembly problems |