There are 1 owner-reported speed control & cruise complaints for the 2007 Kia Optimain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
I HAVE HAD INTERMITTENT ISSUES WITH ACCELERATION WHILE DRIVING MY 2007 KIA OPTIMA. WHEN ACCELERATING WITH THE PEDAL DEPRESSED MODERATELY THE CAR WILL BEGIN TO ACCELERATE AND THEN WILL ALL OF A SUDDEN LOOSE ALL POWER. ESSENTIALLY IT SEEMS AS THOUGH THE PEDAL WERE COMPLETELY RELEASED. WHEN THIS HAPPENS HOWEVER, I WILL TRY AND GIVE IT MORE GAS TO COMPENSATE AND TRIED TO RELEASE THE PEDAL AND REAPPLY PRESSURE TO NO AVAIL. IT WILL USUALLY TAKE FIVE SECONDS OR SO UNTIL I REGAIN ANY SORT OF ACCELERATION. DURING ONE OCCURRENCE I HAVE TO GUIDE THE CAR TO THE SIDE OF THE ROAD AND STOP FOR BEFORE IT WOULD RESPOND AGAIN. THIS PROBLEM SEEMS TO HAPPEN WITHIN A FEW MINUTES OF STARTING THE CAR IN THE MORNING AND HAS OCCURRED ABOUT TEN TIMES IN THE LAST YEAR. THIS IS A DANGEROUS PROBLEM BECAUSE IT HAS HAPPENED A FEW TIMES WHILE CROSSING A BUSY INTERSECTION WITHOUT A TRAFFIC LIGHT. I HAVE ALMOST BEEN HIT TWICE. THE CAR WILL BEGIN TO ACCELERATE AND THEN WILL JUST COAST, WHICH IS PARTICULARLY PROBLEMATIC WITH ONCOMING TRAFFIC. *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.
Data synced from NHTSA on Apr 26, 2026