NHTSA has received 38 owner complaints about the 2020 Toyota Sienna, or 5.7 per year on the road — far fewer complaints than typical for a vehicle of its age (complaint index 0.14, where 1.00 is the average of all tracked vehicles). Among the 82 model-year 2020 vehicles we track, it ranks #11 for fewest complaints per year. Against other Toyota models its rate is 83% lower; against other Minivans it is 89% lower.
Counts are normalized by time on the road, not by sales volume: a popular model generates more reports than a rare one, and complaints are not verified individually. How we count
Complaints filed between 2019-10-15 and 2026-08-31. Median delay from incident to filing: 10 days.
38Complaints
5.7Complaints per year on the road
0.14Complaint index vs. all tracked vehicles
2Recalls
2.6%Share involving a crash or fire
7Last 12 months
Analysis
The previous model year (2019) drew 5.9 complaints per year, about the same. The following model year (2021) drew 7.1 per year, more than this one. In its first two years on the road the 2020 model collected 13 complaints, 77% lower than the average vehicle of the same model year.
The most common problem area is Engine (15.8% of complaints), followed by Fuel system (15.8%) and Transmission / powertrain (13.2%). 1 reports (2.6%) describe a crash or fire; owners mention 0 injuries and 0 deaths.
Half of the reported incidents happened within 43 months of the model year's start; the busiest period was years three to five (29% of incidents). 7 complaints were filed in the last 12 months.
NHTSA lists 2 safety recalls for this model year. 21% of the complaints fall in component areas that a recall addresses.
Complaint index
vs. all tracked vehicles0.14
vs. other Toyota models0.17
vs. other 2020 models0.15
vs. other Minivans0.11
Complaints in first 2 years on the road · vs. same-year average (13)0.23
ON jUNE 3, 2021 I experienced a drastic loss in power and all warning light illuminated on the dash , was able to get of the highway to a safe area and vehicle ceased to function .
Engine · 2021-06-11 · ODI 11420552 · Fire
Power sliding door on driver side cable snapped. After closing door and trying to use the door without power unable to open or close the door at all. Passengers forced to use alternate door for exit of vehicle.
Body & structure · 2026-08-31 · ODI 11760949
Odometer Fraud. The contact purchased a 2020 Toyota Sienna. The contact discovered that there was a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 88,044.
Electrical · 2026-08-25 · ODI 11759472
We had our van parked on a driveway with a front facing slope, we had hard rains went we where going away there was water coming out of the seat belt on the passenger side and the panel above the window was stained down to the window support where the air bag…
Airbags & seat belts · 2026-06-21 · ODI 11745526
My Toyota sienna is a 2020, has 83,000 miles and has recently been squealing when I accelerate. I took the van to a local body shop and they said it seems to be my transmission.
Transmission / powertrain · 2026-05-08 · ODI 11736554
Excerpts from complaints filed with NHTSA, trimmed for length. The ODI number is NHTSA's record identifier.
Risk: If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash.
Remedy: Toyota will notify owners, and dealers will replace the fuel pump assembly with an improved one, free of charge. Owners of specific models were notified that remedy parts were available starting January 21, 2021. Owners of other models will be notified as remedy parts become available. Remedy parts should be available for all affected vehicles by late March 2021. Owners may contact Toyota customer service at 1-888-270-9371 or Lexus customer service at 1-800-255-3987. Note: This recall is an expansion of recall 20V-012. Toyota's number for this recall is 20TA02. Lexus' number for this recall is 20LA01.
Summary: Braun Corporation (Braun) is recalling certain modified 2017-2020 Toyota Sienna vehicles. The steering shaft extensions may have been improperly manufactured, possibly causing the extensions to fracture.
Risk: If the steering shaft extension completely fractures, it can cause a loss of steering, increasing the risk of a crash.
Remedy: Braun has notified owners, and dealers will replace the steering shaft extensions, free of charge. The recall began July 25, 2019. Owners may contact Braun customer service at 1-800-488-0359.
No NHTSA investigation covers the tracked model years.
Frequently asked questions
How many complaints were filed for the 2020 Toyota Sienna?
38 complaints were filed with NHTSA for the 2020 Toyota Sienna, or about 5.7 per year on the road.
What is the most common problem reported for the 2020 Toyota Sienna?
The most common category is Engine, accounting for 15.8% of complaints.
Does the 2020 Toyota Sienna have any recalls?
NHTSA lists 2 safety recall(s) for this model year.
Is the 2020 Toyota Sienna still generating complaints?
7 complaints were filed in the last 12 months.
How does the 2020 Toyota Sienna compare with similar vehicles?
NHTSA has received 38 owner complaints about the 2020 Toyota Sienna, or 5.7 per year on the road — far fewer complaints than typical for a vehicle of its age (complaint index 0.14, where 1.00 is the average of all tracked vehicles). Among the 82 model-year 2020 vehicles we track, it ranks #11 for fewest complaints per year. Against other Toyota models its rate is 83% lower; against other Minivans it is 89% lower.