There are 5 stored owner reports matching the speed control & cruise leading-label group for the 2003 Lexus RX 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 5 of 5 matching reports.
Open the full vehicle complaint log (all categories)AS I WAS DRIVING THE CAR STARTED TO SPEED UP UNCONTROLLABLY AND WOULD NOT SLOW DOWN EVEN WITH THE BRAKES APPLIED. I HAD TO PUT IT INTO NEUTRAL TO APPLY THE BRAKES BUT WE WENT FROM 45 - 85MPH IN A MATTER OF SECONDS WHILE DRIVING IN 45MPH ZONE IN THE INNER CITY. WHEN I TURNED THE CAR BACK ON WHILE IN PARK THE ACCELERATOR WAS STILL STUCK UP TO 100MPH + SO IT WAS NOT DRIVABLE. WE FOUND OUT LATER FROM THE MECHANIC THAT THE THROTTLE WAS STICKY AND STUCK IN THE OPEN POSITION.
HAD CAR IN DRIVEWAY UNUSED FOR MONTH OR TWO. CAR SEEMED TO BE IDLING AT HIGHER THAN USUAL SPEED AFTER STARTING (@2300 RPM). VEHICLE JERKED A BIT AT EACH STOP SIGN AS IF PROBLEM WITH TRANSMISSION. TOOK VEHICLE ON ROAD AT 35 TO 40 MPH, TOOK FOOT OFF GAS AND VEHICLE KEPT ACCELERATING AT A MODEST PACE TO ABOVE 50. GLANCED AT FLOORMAT (NOT TOUCHING ACCELERATOR), PUT CAR IN NEUTRAL. ENGINE REVVED TO HIGH RPM THAN CAME BACK TO NORMAL. PUT BACK IN GEAR AND DROVE SHORT DISTANCE HOME. *TR
TL*THE CONTACT OWNS A 2003 LEXUS RX300. WHILE DRIVING 10 MPH OUT OF THE PARKING LOT THE VEHICLE ACCELERATED AND HE LOST CONTROL. AS HE SWERVED THE VEHICLE HE HIT THREE SMALL TREES, A WOODEN FENCE, AND A BRICK WALL BEFORE THE VEHICLE STOPPED. THE AMBULANCE AND POLICE DEPARTMENT CAME BECAUSE HE WAS TRAPPED IN THE VEHICLE. HE WAS TAKEN TO THE HOSPITAL FOR INJURES TO HIS LOWER BACK. THE VEHICLE WAS DESTROYED. THERE IS A POLICE REPORT IF NEEDED. THE INSURANCE COMPANY WAS NOTIFIED. THE DEALER NOR MANUFACTURER HAVE NOT BEEN CALLED. THE FAILURE MILEAGE WAS 14,070. UPDATED 05/10/10 *BF THE VEHICLE WAS DECLARED A LOSS. UPDATED 05/17/10.*JB
TL*THE CONTACT OWNS A 2003 LEXUS RX300. WHILE DRIVING INTO A DRIVEWAY AT SPEEDS OF FEWER THAN 8 MPH, SHE HEARD A LOUD REVVING NOISE AND THE VEHICLE ACCELERATED WITHOUT INTENT. THE VEHICLE CRASHED INTO THE GARAGE DOOR AND PUSHED THE TWO VEHICLES INTO THE DRIVEWAY THROUGH A CEMENT WALL AND INTO HER HOME. THERE WERE NO INJURIES. NEITHER THE MANUFACTURER NOR DEALER WAS CONTACTED. THE REPAIRS WERE COVERED THROUGH HER INSURANCE COMPANY. THE FAILURE MILEAGE WAS 38,000 AND THE CURRENT MILEAGE WAS 70,000.
TL*THE CONTACT OWNS A 2003 LEXUS RX300. WHILE DRIVING INTO A DRIVEWAY AT SPEEDS OF UNDER 8 MPH, SHE HEARD A LOUD REVVING NOISE AND THE VEHICLE ACCELERATED. THE VEHICLE CRASHED INTO THE GARAGE DOOR AND PUSHED TWO OTHER VEHICLES IN THE DRIVEWAY THROUGH A CEMENT WALL AND THROUGH HER HOME. NEITHER THE MANUFACTURER NOR DEALER WERE CONTACTED. THE REPAIRS WERE COVERED THROUGH HER INSURANCE COMPANY. THE FAILURE MILEAGE WAS 38,000 AND THE CURRENT MILEAGE WAS 70,000.
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: Aug 30, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.