There are 2 stored owner reports matching the speed control & cruise leading-label group for the 2004 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)TL* THE CONTACT OWNS A 2004 VOLVO S40. THE CONTACT STATED THAT AS THE VEHICLE WAS STARTED, THE ENGINE EXHIBITED AN ABNORMAL INCREASE IN ENGINE RPMS UP TO 4000. THE CONTACT THEN SHIFTED INTO DRIVE AND THE VEHICLE ABNORMALLY ACCELERATED TO 40 MPH. THE CONTACT STATED THAT HE DROVE HOME WITH THE BRAKES DEPRESSED AS THE VEHICLE CONTINUED TO MOVE FORWARD. WHEN HE ARRIVED HOME, HE ABRUPTLY JAMMED DOWN ON THE BRAKE PEDAL AND SHIFTED TO PARK UNTIL THE VEHICLE CAME TO A STOP. THE MANUFACTURER WAS CONTACTED AND ADVISED THAT THE FAILURE COULD BE CAUSED BY A DEFECT IN THE THROTTLE CABLE. THE CONTACT INSPECTED THE THROTTLE CABLE AND DISCOVERED THAT THE SPRING WAS MELTED CAUSING THE THROTTLE TO REMAIN OPEN AND THE VEHICLE TO ACCELERATE. THE DEALER WAS CONTACTED AND WAS AWAITING THE ARRIVAL OF THE NECESSARY PARTS TO MAKE REPAIRS. THE FAILURE MILEAGE WAS 85,000 AND THE CURRENT MILEAGE WAS 130,000. UPDATED 06/03/11 *BF THE THROTTLE CABLE WAS COMING APART. UPDATED 08/08/11
TL*THE CONTACT OWNS A 2004 VOLVO S40. WHILE ATTEMPTING TO PARK THE VEHICLE WITH THE BRAKE PEDAL DEPRESSED, THE VEHICLE ACCELERATED ON ITS OWN AND CRASHED INTO A TELEPHONE POLE. THE CONTACT WAS UNINJURED. THE VEHICLE WAS TAKEN TO THE DEALER AND THEY REPAIRED THE DAMAGES AT THE COST OF $8,000. THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE FAILURE MILEAGE WAS 37,171 AND CURRENT MILEAGE WAS 38100 UPDATED 1/5/09 *CN UPDATED 01/09/09.*JB
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.