There are 1 owner-reported speed control & cruise complaints for the 2003 Lexus SCin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
2003 LEXUS SC430. CONSUMER WRITES IN REGARDS TO VEHICLE SUDDEN ACCELERATION. *SMD THE CONSUMER STATED AS SHE PROCEEDED TO PULL OUT OF A PARKING SPACE, SHE THEN PLACE THE VEHICLE IN DRIVE, IT THEN ACCELERATED AT A HIGH SPEED. FINALLY AFTER HITTING A POLE, IT JUMPED THE CURB AND ENDED ON A BUSY STREET. THE DEALERSHIP SENT SOMEONE OUT TO EXPECT THE VEHICLE. THE CONSUMER WAS PROVIDED A DISC THAT SHOWED THE VEHICLE ACCELERATED AT A HIGH SPEED, BUT THEY WOULD NOT SAY THE TRUE CAUSE OF THE PROBLEM, WHICH MAY HAVE HAD SOMETHING TO DO WITH THE WHEEL LOCKING AND THE BRAKES NOT FUNCTIONING.
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 May 4, 2026