There are 7 owner-reported powertrain & transmission complaints for the 2004 Kia Rioin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
VEHICLE WAS PURCHASED USED APPROXIMATELY 2 YEARS AGO. ON THE APPROXIMATE INCIDENT DATE, THE CLUTCH PEDAL FAILED TO ACTUATE THE CLUTCH AFTER PRODUCING A LOUD NOISE. INSPECTION AT A REPAIR FACILITY REVEALED FAILURE IN SEVERAL CLUTCH COMPONENTS AND A METAL FATIGUE FAILURE IN THE CLUTCH AND BRAKE PEDAL SUPPORT BRACKET. I AM FILING THIS COMPLAINT ON BEHALF OF MY DAUGHTER FOR THE FAILED SUPPORT BRACKET, WHICH I HAVE IN MY POSSESSION.
TL*THE CONTACT OWNS A 2004 KIA RIO. WHEN THE CONTACT APPROACHED A STOP LIGHT, THE VEHICLE BEGAN ACCELERATING AND A NOISE WAS PRESENT IN THE FRONT OF THE VEHICLE. THE TRANSMISSION WAS REPLACED ON THREE OCCASIONS WITHIN THE LAST 1000 MILES. THE DEALER INFORMED THE CONTACT THAT THE TRANSMISSION NEEDED TO BE REPLACED. THE CURRENT MILEAGE WAS 55700 AND THE FAILURE MILEAGE WAS 30000.
ON FRIDAY, 8/22/08, THE VEHICLE STALLED AFTER BEING DRIVEN FOR LESS THAN A QUARTER OF A MILE FROM MY HOME AND IN A 25 M.P.H. ZONE. ON MONDAY 8/25/08, I HAD THE VEHICLE TOWED TO THE DEALERSHIP WHERE I PURCHASED THE VEHICLE. THERE I MET WITH THE SERVICE TECHNICIAN. THE SERVICE TECHNICIAN FELT THAT THE TIMING BELT MAY HAVE FAILED AND THAT THE EVENT WOULD LIKELY NOT BE COVERED UNDER MY WARRANTY BECAUSE, AS THE CUSTOMER, I SHOULD HAVE HAD THE TIMING BELT REPLACED AT 60,000 MILES. MY VEHICLE HAD 79,418 MILES AT THE TIME THE VEHICLE STALLED. MY 2004 KIA RIO HAS AN INTERFERENCE ENGINE AND NO ADEQUATE WARNING OF THE PROBABILITY OF A TIMING BELT FAILURE WAS EXPRESSED OR POSTED BY KIA. MY ENGINE HAS COMPLETELY FAILED BECAUSE THE TIMING BELT STRIPPED. IT WILL COST $1,200.00 TO $2,000.00 TO REPLACE THE MOTOR IN THIS AUTOMOBILE. *TR
DT*: THE CONTACT STATED WHILE TRAVELING AT SPEEDS BELOW 25 MPH, THE TRANSMISSION WOULD NOT DOWNSHIFT, CAUSING SEVERE HESITATION. THE DEALERSHIP DETERMINED THE PROBLEM WAS IN THE TRANSMISSION AND NO REPAIR WAS AVAILABLE. 11/30/06. *JB
WHILE ON A LONG ROAD TRIP, I EXPERIENCED A PROBLEM WITH THE CLUTCH ON MY 2004 KIA RIO CINCO. AT HIGHWAY SPEED I ATTEMPTED TO PASS A TRUCK WHEN, AT APPROXIMATELY 70 MPH, THE CLUTCH PARTIALLY DISENGAGED CAUSING MY ACCELERATION TO CEASE. I LET OFF THE THROTTLE AND WHEN RE-ENGAGING THE THROTTLE, THE CLUTCH SLIPPED AGAIN. I HAD TO LET OFF,APPLY BRAKES, AND SWERVE IN BEHIND THE TRUCK I WAS ATTEMPTING TO PASS TO AVOID BEING STRUCK BY AN ONCOMING TRUCK. THE CAR SEEMED TO OPERATE PERFECTLY AFTER THIS INCIDENT BUT I CONTACTED CUSTOMER SERVICE BY PHONE AND WAS TOLD TO HAVE IT LOOKED AT BY A DEALER AS SOON AS POSSIBLE. WHEN I FINALLY FOUND A DEALER THAT HAD THE TIME TO LOOK AT IT A DAY LATER, I WAS TOLD IT WAS THEIR POLICY TO NOT REPAIR CLUTCH PROBLEMS SINCE THEY ARE CALLED A "WEAR ITEM". THEY ALSO TOLD ME THE CLUTCH PLATE LOOKED TO BE BADLY BURNED BUT I COULD FINISH THE TRIP IF I BABIED IT. I CONTINUED ON TO OUR FINAL DESTINATION AND HAVE DECIDED TO SELL THE CAR. AT THE TIME OF THE INCIDENT DESCRIBED, THE CAR ONLY HAD ABOUT 10,000 MILES ON IT. I AM A PROFESSIONAL DRIVER AND AM ALMOST THE SOLE DRIVER SO THIS WASN'T CAUSED BY DRIVER ABUSE. I GUESS THEIR ARE LOOPHOLES IN THE WARRANTY THAT KIA ADVERTISES SO HIGHLY AND THEY AREN'T AFRAID TO LOSE CUSTOMERS WHEN THEIR PRODUCT FAILS. *NM
CAR IS A KIA RIO CINCO, I HAVE EXPERIENCED WHAT SEEMS TO BE CLUTCH SLIPPAGE IN ALL GEARS. CAR WILL ONLY ACCELERATE ABOUT 10 MILES IN EACH GEAR, THEN BEGINS TO STALL AND THEN DECELERATE, UNLESS I MOVE IT TO THE NEXT GEAR. WHEN I REACH 5TH GEAR AT ABOUT 42 MILES PER HOUR, THE CAR WILL DRIVE OK UNTIL I REACH 50 AND THEN BEGAN TO DECELERATE, STABILIZING AT ABOUT 45 MILES PER HOUR. *JB
WHILE DRIVING BETWEEN 30-35 MPH VEHICLE SUDDENLY STOPPED ACCELERATING. A POLICE OFFICE HAD TO USE HIS VEHICLE TO PUSH THE CONSUMER'S VEHICLE TO THE SIDE OF THE ROAD. VEHICLE WAS TOWED TO THE DEALERSHIP, WHERE THE TRANSMISSION WAS REPLACED. THE FAILURE RECURRED WHILE DRIVING AT HIGHWAY SPEEDS. THIS ALMOST RESULTED IN VEHICLE BEING HIT BY ONCOMING TRAFFIC. THE VEHICLE WAS COASTED OF THE HIGHWAY, THEN TOWED TO THE DEALERSHIP, WHO REPLACED THE TRANSMISSION AGAIN.*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.
Data synced from NHTSA on Apr 26, 2026