2017 Toyota Sienna problems
Owners have filed 201 complaints about the 2017 Toyota Sienna with NHTSA. Power train accounts for 17.9% of them — the clear leader, ahead of electrical system at 10%.
Complaints201
Crashes23
Fires8
Injuries15
Deaths0
What owners report breaking
Power train 17.9% · 36
Unknown or other 12.4% · 25
Electrical system 10.0% · 20
Wheels 8.0% · 16
Engine 7.5% · 15
Fuel/propulsion system 7.0% · 14
Structure 6.5% · 13
Service brakes 5.5% · 11
Severity
Of those complaints, 23 describe a crash, 8 describe a fire and 15 report an injury.
Reading the numbers
Across the 19 model years of the Toyota Sienna in this data, 2017 draws comparatively few complaints; 2004 is the outlier year.
Filing volume has held steady, 48 in the last three years against 52 in the three before.
The median odometer reading at the time of complaint was 20,997 miles.
In owners' own words
We experienced a high whine for a couple of months. No codes were being read by any mechanics. Then the transmission started slipping between 2nd and 3rd gears, and then we couldnât reverse. Now itâs not switching gears at all. There is a recall for our year and type of transmission, for this issue, but our vin number is not included in that recall. Power train
Loss of power highway speeds, jerky shifting, âsealedâ transmission leaking fluid. Check engine light and service required light. I have noticed poor performance with this vehicle before and reported it to the dealer to no avail. Toyota has enacted âcustomer support program ZJCâ but the dealership will not honor. Power train
Pressure Control Soleneoid "A" Prformance stuck oof -P0746. Second opionin: Valve bddy Assembly clutch kits inside transmission. Toyota of Dallas refuse to provide service. I had done Tranmission service done by them . Need to get it fix van with new transmission installed and correct any other recall of 2025 to be fix. Power train
Verbatim from NHTSA filings. Complaints are unverified owner reports.
Safety recalls
Checking NHTSA for open recalls…