after hearing wining noise from transmission as driving down highway at full speed with out warning car suddenly and quit violently came to a stop . no waring lights ! transmission appears to be in two gears at once reverse and forward will only roll if put in neutral .internal failure in the transmission according to the dealer . The car not included in the recall issued for the same year…
2017 Toyota Sienna powertrain problems
severe 32 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
32
Recalls
0
Avg fix
$2,500
1crash
2injuries
When does it fail?
Of the 32 powertrain complaints filed for the 2017 Toyota Sienna, here's the actual mileage breakdown — failures cluster heaviest at 125,000-150,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Owners have filed 32 powertrain complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Powertrain accounts for 22% of all owner complaints filed against this vehicle, across 12 categories tracked.
What owners are reporting 2 most recent
The contact owns a 2017 Toyota Sienna. The contact stated that while driving approximately 30-40 MPH and releasing the accelerator pedal, the vehicle made an abnormal whining sound that progressively became louder. The vehicle was taken to the dealer, where it was diagnosed, and it was determined that the transmission needed to be replaced. The vehicle was not repaired due to the cost. The…
Had powertrain trouble with your 2017 Toyota Sienna?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2017 Toyota Sienna?
It's a meaningful issue. 32 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Across the 11 complaints that reported odometer mileage, most powertrain failures cluster between 14,000 and 110,000 miles, with the median around 40,000. A quarter of owners report trouble before 14,000; a quarter make it past 110,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2017/Toyota/Sienna.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.