There are 2 owner-reported speed control & cruise complaints for the 2021 Subaru Imprezain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
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.
Data synced from NHTSA on Apr 25, 2026