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What 134 owners told NHTSA about the 2018 Kia Forte Koup

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (134)Crash / fire / injury (15)Engine (57)Airbags (16)Electrical system (16)Speed control (10)Transmission & drivetrain (8)Body & structure (7)Fuel system (7)Lights (6)Steering (5)Brakes (4)

57 of 134 complaints match · Engine · clear filters · page 3 of 3

Sep 21, 2020Engine

GOT MY CAR AT 60 MILES. THAT WAS A LIL OVER TWO YEARS AGO AND NOW MY CAR IS AT 68000. THE ENGINE IS STALLING AND IT'S NOT ACCELERATING PROPERLY. WHEN I HAVE TO BREAK OR EVEN BREAK PULLING INTO A PARKING SPOT THE CAR CUTS OFF. NO LIGHTS ARE POPPING UP AND I'VE NEVER HAD THIS ISSUE BEFORE. I SEE A LOT OF OTHER PEOPLE ON HERE WHO ARE ALSO HAVING THESE PROBLEMS.

NHTSA ODI 11360165

Aug 26, 2020Engine

VEHICLE REPEATEDLY STALLS AND MUST BE RESTARTED WHEN TRAVELLING AT LOW SPEEDS. MANUFACTURER AND DEALERSHIP BOTH RECOMMENDED REPLACING AFTERMARKET AUTOMATIC STARTER AND PROBLEM STILL PERSISTS.

NHTSA ODI 11351298

Apr 13, 2020Engine

WHILE MY DAUGHTER WAS DRIVING THIS VEHICLE IT STARTED MAKING A LOUD NOISE, THEN THE MOTOR STOPPED. THERE WAS NO INDICATION, EVER, OF AN ENGINE ISSUE. NO LIGHTS, WARNINGS, TEMPERATURE, NOTHING EVER ALERTED HER. WE TOOK IT TO TWO MECHANICS WHO DIAGNOSED AS TOTAL ENGINE FAILURE. ALL FLUIDS WERE LOW, NO OIL. WE NEVER SAW OIL SPOTS. SHE HAD THE OIL CHANGED IN FEBRUARY. WE HAVE TO PURCHASE A NEW ENGINE AS HER WARRANTY RAN OUT AT 60,000 MILES. HOW CONVENIENT FOR KIA. SHE HAS 67,000 MILES. NONE OF THE SENSORS ALERTED HER TO ANY ENGINE ISSUES! THE MECHANICS NOTED A THICK STICKY COVERING OVER THE BOTTOM OF THE ENGINE. WE KNOW KIA HAS HAD SEVERAL MOTOR RECALLS ON OTHER MODELS. THIS MODEL SHOULD BE INCLUDED. I NOTICED ONLINE SEVERAL OTHER KIA FORTE OWNERS WITH ENGINE ISSUES. PLEASE ADVISE.

NHTSA ODI 11320956

Aug 1, 2019Engine

TL* THE CONTACT OWNS A 2018 KIA FORTE. WHILE DRIVING, THE CHECK ENGINE INDICATOR ILLUMINATED AND THE VEHICLE STALLED. THE VEHICLE WAS TAKEN TO POMONA KIA (8 RIO RANCHO ROAD, POMONA, CA 91766, (909) 664-2200) WHERE IT WAS DIAGNOSED THAT THERE WERE METAL SHAVINGS IN THE ENGINE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED AND PROVIDED CASE NUMBER: 13235167. THE FAILURE MILEAGE WAS 34,000.

NHTSA ODI 11241180

Apr 8, 2019EngineFuel system

THIS IS A FOLLOW UP TO MY ORIGINAL COMPLAINT ON THIS ISSUE #11186351... AS INDICATED IN THAT ORIGINAL COMPLAINT I TOOK MY FORTE IN TO THE DEALERSHIP AND HAD IT SERVICED (OIL & FILTER CHANGE, TIRE ROTATION) AND HAD THEM CHECK OUT THE ISSUE I WAS EXPERIENCING; THEY SAID THEY COULD NOT FIND ANYTHING (NOT SURPRISED) HOWEVER THERE WAS SOME TYPE OF KIA SERVICE ALERT TO REPLACE THE SPARK PLUGS 'AGAIN'... I HAVE HAD THIS 2018 FORTE EXACTLY ONE YEAR NOW AND I AM ON THE SECOND SET OF SPARK PLUGS WHICH I FIND QUITE UNUSUAL TO PUT IT POLITELY.. I HAVE OWNED MANY, MANY NEW CARS AND I'VE NEVER HAD SPARK PLUGS REPLACED AT THIS RATE SO IMO THERE IS SOMETHING ELSE WRONG WITH THIS VEHICLE AND I GUESS I WILL HAVE TO DO THE WAIT AND SEE.. AS FAR AS THE ORIGINAL PROBLEM I STILL HAVE IT DRIVING ALONG AND IT FEELS LIKE I RAN OUT OF GAS WHICH IS NOT TRUE I HAVE ALMOST A FULL TANK OF GAS AND I KEEP AN ELECTRONIC FUEL LOG TO MONITOR GAS USAGE AND THE VEHICLE IS GETTING ABOUT 29 MPH AROUND TOWN ON REGULAR GAS..

NHTSA ODI 11194520

Mar 26, 2019Speed controlEngineFuel system

WHEN ACCELERATING THERE IS NO POWER AND IT IS GOING TO CAUSE THE ACCIDENT I WAS ON THE FREEWAY I WENT TO SWITCH LANES I HIT THE GAS AND THE CAR WOULD NOT MOVE JUST STOOD THERE AND RP M'S GOING UP

NHTSA ODI 11191632

Jan 5, 2019Engine

I HAVE HAD MY BRAND NEW KIA FORTE FOR 8 MONTHS STARTING IN APRIL. I CURRENTLY HAVE 16,581 MILES ON THE CAR. ABOUT A MONTH AGO MY ECO LIGHT CAME ON BY ITSELF AND THERE WAS NO WAY TO TURN IT OFF SO I HAD TO TAKE IT TO KIA WHERE THEY UNSCREWED MY BATTERY AND IT WENT OFF. NOW I AM HAVING PROBLEMS WITH MY CAR NOT WANTING TO TURN ON AND AFTER TAKING A TRIP TO AUTO ZONE WE FOUND OUT THAT IT WAS THE 'CRANK SHAFT'. I AM HAVING PROBLEMS WITH A BRAND NEW CAR THAT I HAVE ONLY HAD FOR EIGHT MONTHS. I WAS DRIVING WHEN MY ENGINE LIGHT CAME ON SO I BECAME REALLY CONCERNED AND THAT'S WHAT FORCED ME TO HAVE TO GO TO AUTO ZONE TO SEE WHY MY ENGINE LIGHT WAS ON.

NHTSA ODI 11165436

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Working with the data? Download all 134 complaints as CSV · fetched from NHTSA July 26, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Kia Forte Koup verdict →