There are 2 stored owner reports matching the speed control & cruise leading-label group for the 2021 Subaru Impreza 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)I was using the adaptive cruise control on the highway set to 55 mph. The car suddenly decelerated to ~44 mph so quickly I had whiplash. There was no other vehicle in front of me and the highway was clear of debris. The dealership said this could be caused by a glare.
THE CAR ACCELERATED WITHOUT ANY INPUT FROM DRIVER. DRIVER DID NOT APPLY PRESSURE TO GAS PEDAL HOWEVER THE CAR STILL MOVES BOTH FORWARD AN BACKWARDS. CAR ACCELERATED ENOUGH TO DRIVE OVER A SPEED BUMP WITHOUT STOPPING, ROUGHLY 5 MPH. THREE VIDEOS WERE TAKEN TO DOCUMENT THE ISSUE. THE EVENT HAPPEN IN A PARKING LOT, THE CAR WAS STOPPED AT FIRST HOWEVER AS SOON AS THE DRIVER REMOVED PRESSURE FROM BRAKES PAFEL, THE CAR ACCELERATED WITHOUT INPUT. THE CAR DIDNT SLOW DOWN EVEN WHEN TURNING, IN FACT THE CAR APPEARS TO HAVE SPEED UP. UNABLE TO UP LOAD VIDEO
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.