TSB: Some AWD 2014 - 2017 model year Sienna and 2016 - 2018 model year RAV4 customers may experience an abnormal noise from rear coupling unit while driving. This condition can be caused by utilizing an improper towing method when transporting vehicles.
full bulletin at NHTSA ↗2015 Toyota Sienna suspension problems
severe Owners of the 2015 Toyota Sienna have filed 5 NHTSA complaints about the suspension at roughly $900 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See suspension across all vehicles →
Complaints
5
Recalls
0
Avg fix
$900
| Model year | suspension complaints |
|---|---|
| 2011 Sienna | 5 |
| 2013 Sienna | 4 |
| 2014 Sienna | 7 |
| 2015 Sienna (this page) | 5 |
1crash
When does it fail?
Of the 5 suspension complaints filed for the 2015 Toyota Sienna, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 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
No new NHTSA suspension complaint has been filed on this vehicle in over 7 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering suspension on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
TSB: The only acceptable towing method for vehicles equipped with an Active Torque Control 4WD system is to have all four wheels off the ground. Flat towing or towing where only the front or rear wheels are supported may damage the all-wheel drive system.
full bulletin at NHTSA ↗Dealer Letter: It has come to our attention that your dealership recently received '15 Model Year Sienna (s) that may not have had the passenger seat Occupant Classification Sensors (OCS) properly calibrated during the assembly process. It has come to our attention that your dealership recently received some '14 Model Year Camry and/or Avalon (s) that may have a lower control arm on the left front suspension that may have been mis-stamped during the assembly process.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 1 most recent
I am a disabled federal employee. I have a new handicap conversion van from vmi vantage mobility int. It is not safe to drive. The suspension is horrible
Had suspension trouble with your 2015 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 suspension problem on the 2015 Toyota Sienna?
It's a meaningful issue. 5 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $900.
At what mileage does the suspension typically fail?
Based on the 5 complaints filed, suspension issues most often appear around 20,267 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $900 for suspension 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 suspension?
No active recalls currently cover suspension 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/2015/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.