There are 2 stored owner reports matching the speed control & cruise leading-label group for the 2008 Volvo S40 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)WHILE DRIVING ON THE HIGHWAY I SET CRUISE CONTROL TO 65. WITHIN SECONDS I FELT AS IF I WERE GOING VERY FAST AND I HAD ACCELERATED TO NEAR 90 MPH. I TURNED CRUISE CONTROL OFF, STEPPED ON THE BRAKE AND WHEN I LET OFF THE BRAKE THE CAR BEGAN TO ACCELERATE AGAIN. AFTER THE SECOND TIME STEPPING ON THE BRAKE THE PROBLEM CEASED. THE SAME TYPE OF INCIDENT OCCURRED AGAIN, ONLY THIS TIME CRUISE CONTROL WAS NOT INVOLVED. STOPPED AT A RED LIGHT, I STEPPED ON THE ACCELERATOR TO MAKE A RIGHT HAND TURN, THE RPMS IMMEDIATELY JUMPED AND MY CAR ACCELERATED VERY QUICKLY. I STEPPED ON THE BRAKE AND AFTER A FEW SECONDS THE ISSUE RESOLVED ITSELF. *TR
TL*THE CONTACT OWNS A 2008 VOLVO S40. SHE STATED THAT WHILE DRIVING 2 MPH AND PARKING THE VEHICLE WITH HER FOOT ON THE BRAKE PEDAL, THE VEHICLE ACCELERATED ON ITS OWN AND CRASHED INTO A STORE WINDOW. THERE WERE FRONTAL DAMAGES TO THE VEHICLE. SHE SUFFERED CHEST INJURIES. A POLICE REPORT IS AVAILABLE. THE VEHICLE WAS TOWED TO THE DEALER AND THEY ARE WAITING FOR THE DIAGNOSTIC TEST RESULTS. THERE HAVE BEEN NO REPAIRS DONE TO THE VEHICLE. THE FAILURE AND CURRENT MILEAGE WERE 10000.
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.