There are 3 stored owner reports matching the speed control & cruise leading-label group for the 2010 Kia Optima 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 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)ENGINE BLEW DOING 40-45 ON A COUNTY ROAD 1,000 RPM 5TH GEAR, IN AUTOMATIC. 2ND TO 1ST, SOFT TO HARD KICK. VEHICLE SPEED SENSOR MUST BE FAULTY I HAVE TO PUMP BRAKE MORE TO SLOW THE ENGINE SPEED IT LIKES TO BOG TRYING TO SPEED UP IN AUTOMATIC MODE
WHEN COMING TO A STOP MY CAR SHIFTS FROM 3RD TO 2ND HER VERY ABRUPTLY. IT MAKES IT FEEL AS THOUGH I'VE SLAMMED ON MY BRAKES VERY SUDDENLY. IT ALSO DOES IT WHEN I SLOW MY CAR THEN PRESS THE GAS TO ACCELERATE SOMETIMES. I'VE TAKEN MY CAR TO THE DEALERSHIP OVER 5 TIMES SINCE FIRST PURCHASED BY MY MOTHER IN 2010 AND THE DEALERSHIP ALWAYS CLAIMED TO BE UNABLE TO NOTICE THE SUDDEN JERKING. THIS JERKING HAPPENS MOSTLY ON THE STREET DUE TO MY CONTINUAL STOP AND GO, BUT IT HAS ALSO HAPPENED WHILE GETTING ON THE FREEWAY AND DURING FREEWAY TRAFFIC.
THE CRUISE CONTROL IS INOPERATIVE. THE CRUISE CONTROL LIGHT WILL COME ON, BUT YOU CANNOT "SET" THE CRUISE CONTROL. I HAVE READ ONLINE ABOUT SEVERAL OTHER KIA MAKES AND MODELS HAVING THIS SAME ISSUE. AS FAR AS I CAN RESEARCH, THERE IS NOT A FUSE FOR THE CRUISE CONTROL. *TR
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.