There are 2 stored owner reports matching the speed control & cruise leading-label group for the 2017 Subaru Legacy in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)When running on a highway and you press down on the accelerator hard to merge onto a highway or go around a vehicle to move out of the way of vehicles quickly coming up behind you, the engine takes over and speeds up on its own. It has occurred three times on a newly purchased used car and it will increase speed up to 100mph. You have to press intermittently on the brakes to pull over to the shoulder and turn off the car for five minutes for the car to reset. If you try to just break, you get a burning smell. I see two class action lawsuits on similar acceleration issues for 2015 to 2017 Outback/Legacy series.
TL* THE CONTACT OWNS A 2017 SUBARU LEGACY. WHILE PARKING THE VEHICLE, THE CONTACT RELEASED HER FOOT FROM THE ACCELERATOR PEDAL AND THE VEHICLE EXPERIENCED UNINTENDED ACCELERATION. THE FAILURE OCCURRED WITHOUT WARNING. AS A RESULT, THE VEHICLE ACCELERATED UP A HILL AND CRASHED INTO A WALL. THE VEHICLE WAS TOWED TO THE DEALER, BUT THE FAILURE COULD NOT BE REPLICATED. THE VEHICLE WAS REPAIRED. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 300.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.