2021 Toyota Redundant Sienna Wipers & Visibility Problems
4 owner-reported wipers & visibility complaints from NHTSA data
Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.
Owner Complaints (4)
Your air conditioning system stopped working properly, which caused your windows to fog up and reduced visibility — a safety concern. The dealer found that the AC refrigerant lines corroded due to galvanic corrosion where steel brackets contact aluminum line-sets, especially in Michigan's salty winter conditions. The corroded lines developed a leak that let all the refrigerant escape. Fixing this issue requires replacing the entire line-set assembly, though the same corrosion problem could occur again without a design improvement.
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Your driver's side door mirror vibrates while driving, making the reflection shaky and hard to see clearly. The passenger mirror works fine with no vibration. While the dealer says this is normal, you've never experienced this issue in 30+ years of driving other vehicles. The fix would likely involve inspecting and tightening the mirror's mounting bracket or replacing the mirror assembly if the mounting hardware is defective.
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The contact owns a 2021 Toyota Sienna. The contact stated while driving 55 MPH, the sunroof exploded outward from the vehicle while closed. The contact stated that upon inspecting the sunroof he noticed that 80% of the glass was missing from the vehicle. The manufacturer was notified, and a claim was opened. The local dealer was notified of the failure and informed the contact that the manufacturer stated that the failure was caused by a road hazard such as a hit by a rock. The contact stated that there was no prior damage to the sunroof. The failure mileage was approximately 12,000. The VIN was not available.
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.