There are 4 stored owner reports matching the powertrain & transmission leading-label group for the 2004 Kia Sedona 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 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)THE VAN WAS IN DRIVE TO MOVE FORWARD WHEN THE GAS WAS PRESSED INSTEAD OF GOING FORWARD IT WENT IN REVERSE & WHEN THE BRAKE WAS PRESSED TO STOP IT DIDN'T WORK. THE ONLY WAY TO STOP THE VAN BEFORE GOING INTO THE CEMENT WALL OF A COMMUNITY CENTER WAS TO OPEN THE DRIVER DOOR WHICH CAUSED 3 OTHER VEHICLES TO BE DAMAGED. THANK GOD THE DRIVER IS SAFE BUT THE VAN HAS DEEMED A TOTAL LOSS BY THE INSURANCE COMPANY. *TR
MULTIPLE INSTANCES WHERE VEHICLE HAS BEEN UNABLE TO START. WILL SUBSEQUENTLY TURN OVER FOR A PERIOD OF ABOUT 5 SECONDS AND FINALLY "CATCHES" AND WILL RUN ROUGH. UPON DRIVING THE VEHICLE WILL RUN ROUGH, HESITATE AND STALL, MOSTLY AT TIMES DURING A FULL STOP ATTEMPTING TO ACCELERATE TO NORMAL DRIVING SPEED IN TRAFFIC AND THROUGH TURNING. UPON INSPECTION AT DEALERSHIP, NO FAULTY PARTS FOUND AND CONDITION "DISAPPEARS". UPON RECEIPT OF VEHICLE FROM DEALERSHIP, PROBLEM HAS CONTINUED TO PLAGUE VEHICLE. REPLACED MANY PARTS UNDER THE ADVISEMENT OF THE DEALERSHIP AND HAVE NEVER FOUND A SOLUTION TO THE PROBLEM. NO CHECK ENGINE CODE PRESENT DURING PROBLEM. HAS LEFT FAMILY STRANDED ON MORE THAN A FEW OCCASIONS MAKING VEHICLE UNRELIABLE AND UNSAFE TO OPERATE. *TR
TL*THE CONTACT OWNS A 2004 KIA SEDONA EX. WHILE ATTEMPTING TO ACCELERATE FROM A STOP, THE VEHICLE WOULD NOT MOVE FORWARD. THE CONTACT STATED THAT THE VEHICLE ONLY DROVE IN REVERSE. THE VEHICLE WAS TOWED TO THE DEALER AND THEY STATED THAT THE TRANSMISSION NEEDED TO BE REPLACED. THE CURRENT AND FAILURE MILEAGES WERE 50,000.
DT: TOOK VEHICLE TO DEALER AT LEAST 15 TIMES, THEY SAID NOT KICKING UP ANY ERA CODES. THE THROTTLE BODY WAS CHANGED ALSO TRANSMISSION CONTROL MODULE (TCM ) WAS THEN CHANGED. THIS DID NOT FIX THE PROBLEM. THEY DID SOMETHING WITH THE GROUNDS. IN FEBRUARY 2005 THEY PUT IN A NEW TRANSMISSION. LIKE THE CAR IT WAS LOSING POWER, AND CAR WAS GEARING DOWN ON ITS OWN. AT FIRST THIS ONLY HAPPENED ONCE OR TWICE A WEEK, BUT CURRENTLY IT HAPPENED EVERY TIME CONSUMER GOT INTO THE CAR. THE LAST THIS HAPPENED CONSUMER PULLED OUT ONTO A ROAD AND CAR HAD NO POWER, AND DID NOT WANT TO ACCELERATE. IT WAS ALMOST HIT BY A TRACTOR TRAILER. DROVE TO DEALERSHIP DID NOT TURN OFF THE CAR. TECHNICIAN DROVE THE CAR, AND HE SAID THAT THE TRANSMISSION KICKED ITSELF INTO SAFE MODE, WHICH MEANT THE CAR STAYED IN SECOND GEAR WHILE DRIVING. *AK
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.