There are 1 stored owner reports matching the speed control & cruise leading-label group for the 2018 Kia Stinger 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 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)I WAS DRIVING ON INTERSTATE GOING 70MPH WITH THE ADAPTIVE CRUISE ON AND MY SPEED SUDDENLY DROPS TO 50 ( LIKE SNAPPING YOUR FINGERS ). SCARED THE HECK OUT OF ME. WHEN I STOPPED I CHECKED THE FRONT SENSORS TO MAKE SURE THERE WAS NOTHING BLOCKING IT. A COUPLE WEEKS LATER THE SAME THING HAPPENED GOING ABOUT 70 ON INTERSTATE AND THE SPEED SUDDENLY DROPS TO ABOUT 50, BUT THIS TIME THE TRUCK BEHIND ME ALMOST REAR ENDED ME. BOTH TIMES WHEN THE SPEED DROPPED LIKE THAT I WAS FREAKING OUT AND TRYING TO GET MY FOOT BACK ON THE GAS AND GET MY SPEED BACK UP. A COUPLE WEEKS LATER I WAS GOING ABOUT 35 AND DID NOT HAVE THE ADAPTIVE CRUISE ON AND IT SUDDENLY STOPS AGAIN. THIS TIME THE CRASH WARNING LIGHT SHOWED UP ON THE DASHBOARD AND THE ERROR WARNING CAME UP AND SAID THE AUTONOMOUS BREAKING SYSTEM IS DISABLED. WE TOOK A PICTURE OF THE DASHBOARD. ON THE BOTTOM LEFT CORNER OF THE PICTURE IT SAYS CRUISE AND SHOWS THE ERROR LIGHTS ON THE DASHBOARD. CRUISE WAS NOT ON SO I ASSUME IT WAS PART OF THE ERROR THAT CAME ON WITH THE DASHBOARD LIGHTS. I AM SCARED TO DEATH TO DRIVE MY CAR NOW. I HAVE 2 GRANDKIDS THAT ARE IN MY CAR 3-4 TIMES A WEEK. GOD FORBID I GET HIT AND SOMETHING HAPPENS TO MY BABIES!!! I TOOK THE CAR TO HENDRICK KIA IN CONCORD, NC SO THEY COULD SEE WHAT WAS WRONG. WHEN THEY HOOKED THE CAR UP TO THE COMPUTER NO ERROR CODES SHOWED UP. ONE OF THE GUYS HAS BEEN DRIVING MY CAR HOME AND TO WORK FOR 2 DAYS AND THE PROBLEM HAS NOT HAPPENED AGAIN. I DON'T KNOW WHAT TO DO NOW.
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.