Problems · by component
1998 Kia Sephia electrical system problems
78 owner complaints to NHTSA about the 1998 Kia Sephia cite electrical system, 16% of all 491 complaints for this model year.
Complaints
78
16% of all complaints
Crashes
5
Reported by owners
Fires
8
Reported by owners
Injuries
7
Reported by owners
What owners say about the electrical system
Verbatim from NHTSA complaints, newest first
“I BROUGHT A NEW KIA SEPHIA IN 1998, AND HAD NOTHING BUT TROUBLE WITH IT! TRANSMISSION WAS REPLACED 2 TIMES BY THE MECHANIC FOR KIA MOTORS, AND NEEDED TO BE REPLACED AGAIN ON 7/2007. ALSO , THE BRAKES HAVE BEEN REPLACED 4 TIMES AND NEED TO BE REPLACED AGAIN. NOW THE HEADLIGHTS KEEP TURNING OFF WHILE DRIVING AT NIGHT, BUT NO MECHANIC CAN LOCATE THE ELECTRICAL SHORT PROBLEM. *AK”
“TL*- THE CONTACT STATED THAT WHEN TRYING TO MERGE INTO TRAFFIC WITH THE 1998 KIA SOPHIA IT STALLED. WHEN THIS HAPPENED INSTRUMENT PANEL LIGHTS TURNED ON. THE VEHICLE STALLED IN HEAVY TRAFFIC, AND SHE HAD TO PUT THE VEHICLE IN PARK AND RESTART IT. THE CONTACT STATED THAT THE VEHICLE'S CURRENT MILEAGE WAS 70,000 MILES. THE DEALERSHIP INFORMED HER THAT SHE NEEDED A NEW VEHICLE. THE CONTACT STATED THAT THE DEALERSHIP FOUND NOTHING WRONG WITH THE VEHICLE. THE VEHICLE STALLED INTERMITTENTLY. AT TIMES WHEN THE VEHICLE STALLED, AND SHE TRIES TO RESTART IT, THE VEHICLE WOULD NOT RESTART. *AK”
“OVER A PERIOD OF TIME, APPROXIMATELY 70,00 MILES ON MY CAR, THE AC/HEATER FAN MOTOR WILL BLOW AIR INTERMITTENTLY, REGARDLESS OF THE FAN'S SPEED SETTING. EVENTUALLY, THE FAN STOPS BLOWING ALL TOGETHER. THIS SAME THING HAS HAPPENED WITH MY 1999 KIA SEPHIA. *JB”
“WHILE DRIVING 55 MPH, THE VEHICLE STALLED. THE CONSUMER TRIED TO RESTART THE VEHICLE BUT WAS UNABLE TO DO SO. THE CONSUMER NOTICED SMOKE COMING FROM UNDERNEATH THE HOOD. IT CAUGHT ON FIRE. THE FIRE DEPARTMENT WAS CALLED TO EXTINGUISH THE FIRE. THERE WERE NO INJURIES TO REPORT. HOWEVER, VEHICLE WAS TOTALED. *AK THE CONSUMER STATED THAT THERE WAS A HARD START THAT WOULD NOT HOLD FUEL PRESSURE. *SC *JB”
“BATTERY WASN'T HOLDING CHARGE, NEEDED CONTINUOUS REFILL WITH DISTILLED WATER, OVERHEATING, OVERFLOWING AND SPILLING ACID CORRODING OTHER PARTS. (NAR) *PH *CB”
“I PURCHASED A KIA IN MARCH 02' I USED THE CAR FOR LONG TRIPS THE FIRST YEAR I HAD OWNED THE CAR AND I HAD NO FAULTS IN JAN.- FEB 03' THE CAR BEGAN TO SHIFT IN TO NUMEROUS GEARS AND THEN STALL. I WAS THEN DEPLOYED TO IRAQ. I LEFT THE CAR WITH A GOOD FRIEND. WHEN I CAME BACK HE INFORMED ME THAT THE CAR WOULDN'T START. DEALER SAID IT WAS THE FUEL PUMP. FRIEND REPLACED THE FUEL PUMP.FRIEND THEN REPLACED FUEL PUMP AGAIN WHEN CAR WOULDN'T START. FRIEND LEFT THE CAR ALONE,WHEN IT DIDN'T START, UNTIL I HAD RETURNED FROM IRAQ. I CAME BACK AND TOOK THE CAR TO MIDAS, DUE TO THE FACT THAT THE DEALER DIDN'T HAVE AN IDEA OF WHAT WAS GOING ON. MIDAS THEN SAID IT WAS THE FUEL PUMP. I HAD IT REPLACED FOR A THIRD TIME. CAR RAN FOR A DAY THEN DIED. I TOOK THE CAR BACK TO MIDAS THEY SAID IT WAS THE WIRING HARNESS. I HAD THAT REPLACED. CAR STILL DIDN'T START. SO MIDAS SAID THREE WEEKS LATER THEY SAID IT WAS THE FUEL MODULE. THE CAR THEN WORKED FOR ABOUT A MONTH THEN WOULDN'T START. TOOK CAR TO SEVERAL SHOPS ALL SAID IT WAS THE PUMP. I THEN HAD A MECHANIC FROM MY UNIT CHECK IT OUT. HE SAID IT WAS WITHIN THE WIRING TO THE FUEL PUMP STILL HASN'T FIGURED IT OUT. SINCE THEN I HAVE FOUND…”
Showing 6 of 78 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.