Tl* the contact owns a 2015 Subaru outback. The contact stated that while at a complete stop, the vehicle failed to accelerate without warning. The vehicle was taken to a dealer where the technician informed that the vehicle was functioning as designed. The manufacturer was not notified of the failure. The failure mileage was 856. Updated 02/18/15*lj updated 9/12/2017*cn
2015 Subaru Outback powertrain problems
severe 34 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
34
Recalls
0
Avg fix
$2,500
1crash
2injuries
When does it fail?
Of the 34 powertrain complaints filed for the 2015 Subaru Outback, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 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 34 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.
No new NHTSA powertrain complaint has been filed on this vehicle in over 11 years — the issue may be aging out of the active population.
What owners are reporting 4 most recent
While driving down freeway at 75 MPH, transmission made two clunking sounds, and speed decreased - rpms increased. We could smell oil burning smell, but no smoke or leaks. We were approximately 12 miles outside of las vegas and 22 miles into our trip. There was no warning and no decrease in speed or other signs prior to the clunks/clanks. Vehicle towed to Subaru of las vegas. First Subaru…
After a transmission replacement performed by Bud Clary Chevrolet, Inc. in Longview, WA on September 9, 2025, my vehicle was returned to me with critical components left unsecured. On November 19, 2025, an independent mechanic discovered loose suspension bolts connecting the ball joints to the spindles on both front wheels. On November 29, 2025, Subaru of Portland documented additional unsecured…
A transmission that was replaced in July of 2023 went bad un December of 2024 and dealership won't give reasons why transmission went bad or what caused a almost brand new transmission with less than 50,000 miles on it went bad. They are demanding we pay $5000.00 dollars on a transmission that was replaced under the extended warranty on cvt transmission from subaru. Which also extends to the…
Had powertrain trouble with your 2015 Subaru Outback?
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 2015 Subaru Outback?
It's a meaningful issue. 34 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 19 complaints that reported odometer mileage, most powertrain failures cluster between 23,000 and 45,000 miles, with the median around 32,000. A quarter of owners report trouble before 23,000; a quarter make it past 45,000. 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/2015/Subaru/Outback.
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.