There are 26 owner-reported air bags & restraints complaints for the 2004 Kia Optimain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNED A 2004 KIA OPTIMA. WHILE DRIVING 25 MPH, ANOTHER VEHICLE CRASHED INTO THE CONTACT'S VEHICLE FROM THE FRONT. THE PASSENGER SIDE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS FILED. THE CONTACT SUSTAINED STOMACH AND CHEST INJURIES THAT REQUIRED MEDICAL ATTENTION. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE VEHICLE WAS DESTROYED. THE MANUFACTURER WAS NOT CONTACTED. THE VIN WAS UNKNOWN. THE APPROXIMATE FAILURE MILEAGE WAS 57,000.
THE AIR BAG WENT OFF WHILE MY WIFE WAS REACHING FOR HER SEAT BELT AND SCRAPPED AND BURNED HER ARM. IT SOUNDED LIKE A GUN GOING OFF. I RUSHED HER HOME AND TOOK CARE OF HER WOUNDS
AIR BAG LIGHT ON DASHBOARD STAYS ON, STARTED TWO DAYS A GO.
AIRBAG LIGHT REMAINS ON SHOWING A PROBLEM WITH THE SYSTEM. WAS TOLD COULD BE A SENSOR AND WOULD COST $150 TO DIAGNOSE AND UP TO $2000 TO FIX. NOT WORTH THE COST CONSIDERING THE AGE BUT NEEDS TO BE FIXED FOR SAFETY REASONS
A CHILD WAS SITTING IN THE REAR CENTER SEAT WHEN A SNAPPING SOUND OCCURRED WHILE AT A STOP SIGN. UPON INVESTIGATION THE SEAT BELT MECHANISM BROKE, CAUSING IT TO NOT RETRACT OR LOCK. SECOND SEAT BELT TO BREAK ON THIS VEHICLE, A YEAR APART. *TR CONCERNED THIS IS A SAFETY ISSUE AS SEAT BELTS ARE REQUIRED BY LAW. *TR
THE AIRBAG LIGHT STAYED ON SOLID. I TOOK IT TO MY MECHANIC AND HE PUT THE COMPUTER ON IT. HE SAID IT READ THE DRIVER SIDE AIR BAG WAS NOT FUNCTIONING. THIS LIGHT IS INTERMITTENT AS IT GOES OUT EVERY ONCE IN A WHILE, EVERY FEW DAYS. I DO NOT HAVE THE $1000 PLUS TO REPAIR IT. *TR
AIRBAG LIGHT STAYS ON AND THE FRONT PASSENGER DOOR WON'T OPEN OR CLOSE. *TR
THE VEHICLE HASN'T BEEN IN ANY ACCIDENTS WHICH I AM VERY THANKFUL FOR CONSIDERING THE AIR BAGS MAY OR MAY NOT WORK. THE AIR BAG LIGHT IS ON AND THE DEALERSHIP HAS RESET IT SEVERAL TIMES. THE CAR WON'T PASS INSPECTION WITH THE LIGHT ON. I AM A RECENT COLLEGE GRADUATE ON A FIXED INCOME. I NEED THE CAR FOR TRANSPORTATION TO WORK AND AT THIS TIME DON'T HAVE THE FUNDS TO GET IT FIXED IF THERE IS A PROBLEM WITH THE AIR BAGS. I NEED THE KIA DEALERSHIP TO CONSIDER CALLING A RECALL ON THESE AIRBAGS DUE TO A SAFETY ISSUE ESPECIALLY IF THERE WAS AN ACCIDENT AND THE BAGS WOULDN'T DEPLOY. I NEED TO BE ABLE TO GET THIS CAR INSPECTED WITH LITTLE COST TO ME.
TL* THE CONTACT OWNS A 2004 KIA OPTIMA. THE CONTACT STATED THAT THE REAR DRIVER'S SIDE SEAT BELT WOULD NOT RETRACT PROPERLY. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC, WHO STATED THAT THE RETRACTOR NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE AND CURRENT MILEAGE WAS 78,000. *TR UPDATED 03/27/13*LJ UPDATED 05/09/2013 *JS
TL* THE CONTACT OWNS A 2004 KIA OPTIMA. THE CONTACT STATED THAT AFTER TURNING THE VEHICLE OFF AND ATTEMPTING TO EXIT THE VEHICLE THE DRIVERS SIDE DOOR WOULD NOT UNLOCK AND COULD NOT BE OPENED. THE CONTACT ALSO INDICATED THAT THE FRONT DRIVERS SIDE DOOR COULD NOT BE UNLOCKED FROM OUTSIDE OF THE VEHICLE. THE DOOR FAILURES HAD OCCURRED ON MULTIPLE OCCASIONS. THE AIR BAGS SENSOR LIGHT REMAINED ILLUMINATED INDICATING THAT THE AIR BAG SYSTEM WAS FAULTY. THE FAILURE WAS NOT DIAGNOSED NOR WAS THE VEHICLE REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 58,000.
MY AIR BAG LIGHT COMES ON THERE'S NO WIRES DISCONNECTED UNDER THE SEAT AND MY SEAT BELTS DO NOT RETRACT WELL ALSO MY DOOR LOCKS ARE GETTING STUCK IN LOCK MODE AND MY ENGINE COMES ON AND THEN GOES OFF.AFTER AWHILE.WHEN IN PARK
A 5 YEAR OLD CHILD WAS SITTING IN THE BACKSEAT BEHIND THE DRIVER WHILE DRIVING 25 MPH AND A LOUD POP OCCURRED. THE SEAT BELT MECHANISM BROKE. IT WAS TAKEN APART AND FOUND THAT THE INNER WORKINGS OF THE SEAT BELT ARE PLASTIC AND A SMALL PLASTIC CLIP THAT HOLDS THE SPRING BROKE, THUS A NON WORKING SEAT BELT. SEARCH TO SEE IF A RECALL WAS PRESENT. NO RECALL BUT TONS OF THREADS POSTED OF THE SAME THING OCCURRING ON OTHER KIA OPTIMAS. *TR
TL* THE CONTACT OWNS 2004 KIA OPTIMA. THE CONTACT STATED THE PASSENGER FRONT DOOR LOCK FAILED TO UNLOCK ELECTRONICALLY OR MANUALLY. THE AIR BAG WARNING LIGHT ALSO REMAINED ILLUMINATED. THE DRIVERS DOOR LOCK ALSO FAILED AT 41,000 MILES; HOWEVER, THE ACTUATOR WAS REPLACED. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR THE PASSENGER DOOR OR THE AIR BAG WARNING LIGHT. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 41,000. THE CURRENT MILEAGE WAS 64,000. ..UPDATED 12-30-13 *BF THE CONSUMER STATED THE VEHICLE WAS TAKEN TO BE REPAIED. THE TECHICIAN ADVISED THERE WAS A NICKEL IN THE DOOR PANEL AND THAT THE WAS REPAIRED. THERE DOOR WAS NOT ACTUALLY REPAIRED. UPDATED 1/16/2014 *JS
I PURCHASED MY 2004 KIA OPTIMA WITH 100K MILES ON IT AND AFTER ABOUT 30 DAYS THE AIRBAG LIGHT CAME ON WITHOUT BEING INVOLVED IN ANY MOVING INCIDENT AND REMAINED ON. I TOOK IT TO THE KIA DEALER (ROSEN, MILWAUKEE, WI) AND THEY BELIEVED IT WAS THE CONTACTS BECAUSE I GOT CODE B1378, AIRBAG RESISTANCE TO HIGH. THEY SPRAYED SOMETHING ON THE CONTACTS BECAUSE THE COULDN'T FIND ANYTHING WRONG WITH THE AIR BAG SYSTEM. THEY RESET THE AIRBAG LIGHT FREE OF CHARGE, BUT AFTER DRIVING ABOUT ONE WEEK THE LIGHT CAME BACK ON. THIS IS A MAJOR SAFETY ISSUE THAT KIA NEEDS TO RESOLVE BECAUSE THE AIR BAGS WILL NOT DEPLOY IF THE CAR IS INVOLVED IN AN ACCIDENT. *TR
WE HAVE HAD THE AIRBAG LIGHT COME ON FOR THE PAST 3 YEARS ALWAYS JUST BEFORE THE STATE INSPECTION IS DUE EVERY TIME WE GET IT FIXED THEY SAID ITS A SWITCH OR A CONNECTOR. BUT THIS YEAR WAS THE WORST ,LIGHT CAME ON IN APRIL, THIS TIME THEY SAID IT'S THE AIRBAG WIRE HARNESS AND WOULD COST OVER 1500.00 . WE GOT KIA TO PAY FOR THE PART,AND WE WOULD COVER THE LABOR. I'M JUST WORRIED WILL THIS HAPPEN AGAIN. IT SHOULD BE INVESTIGATED FURTHER. *TR
TL*THE CONTACT OWNS A 2004 KIA OPTIMA. THE CONTACT WAS TRAVELING AT SPEEDS OF 15 MPH IN RAINY WEATHER. THE VEHICLE AHEAD OF HIM STOPPED SUDDENLY. THE CONTACT WAS UNABLE TO STOP THE VEHICLE AND CRASHED INTO THE REAR OF THE PRECEDING VEHICLE. THE AIR BAGS DID NOT DEPLOY UPON IMPACT. THE CONTACT WAS INJURED. A POLICE REPORT WAS FILED. THE CONTACTS VEHICLE WAS DESTROYED. THE FAILURE AND CURRENT MILEAGES WERE 82,500.
I WAS DRIVING AND THE VEHICLE AIR BAG LIGHT CAME ON. *TR
ME 2004 KIA HAVE THE AIR BAGS LIGHT ON AND I HAVE TAKE THE VEHICLE TO A REPAIR SHOP AND THEY HAD NOT FIND WHAT IS WRONG WITH IT. I CALL THE KIA DEALER AND I WAS TOLD THAT THERE WAS NOTHING THEY COULD DO. I AM AFRAID THE AIR BAGS WILL POP WHILE I AM DRIVING. CAN YOU PLEASE TELL ME IF THIS IS A SAFETY ISSUE. THE AIR BAGS LIGHT STAY ON AT ALL TIME. *TR THANK YOU
DASHBOARD AIRBAG INDICATOR LIT. CODE B1378 PULLED BY THE DEALERSHIP - DRIVERSIDE SIDE AIRBAG RESISTANCE HIGH. $1,020 TO FIX (REPLACE SEATBACK) . THIS CAR HAS 26,400 MILES ON IT. WAS TOLD NONE OF THE 4 AIRBAGS WILL WORK BECAUSE THIS ONE BAG HAS FAILED. I UNDERSTAND DEVICES FAIL BUT TO DESIGN AN ENTIRE SAFETY SYSTEM TO DEACTIVATE BECAUSE ONE PART OF IT GOES BAD IS NEGLIGENT ENGINEERING. ALSO, FACTORY WARRANTIES COVERING EMISSION SYSTEMS LONGER THAN SYSTEMS RESPONSIBLE FOR BODILY SAFETY IS BAD POLICY. *TR
PURCHASED A 2004 KIA OPTIMA IN 11/2005 AND HAVE REPORTED AIR BAG LIGHT COMING ON EVERY COUPLE OF MONTHS. CAR REPAIR HAS BEEN ATTEMPTED 4 TIMES SINCE DATE OF PURCHASE AND REPORTED 5 TIMES AS OF 04/11/2008. I AM AFRAID THAT THE AIRBAG MAY OR MAY NOT DEPLOY WHEN NEEDED, OR IT WILL DEPLOY WHILE DRIVING. *TR
Showing 1–20 of 26 complaints
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