2016 Kia Forte KoupRecalls, problems, MPG & safety

“Im getting denied dued to engine failure but whoever had the vehicle before didn't follow up with the ksds update, I just purchased the vehicle on June 30th,2026, I need this fixed ASAP because I still owe on this car.”

“The Headlights and ALL exterior lights FLICKER or TURN OFF ENTIRELY while driving, especially when touching the Multi-Function Turn Signal Stalk to signal a turn. This can and HAS happened when the Headlights are switched on any mode: MARKER LIGHTS, HEADLIGHTS, or AUTO. I can be driving, Headlights are on AUTO - suddenly - ALL HEADLIGHTS/EXTERIOR LIGHTS FLICKER OR TURN OFF. I have to quickly touch the Multi-Function Stalk or switch it from AUTO to HEADLIGHTS to keep the lights on. I then have to be careful when using the same Stalk to signal turns or it may cause the lights to flicker or turn off entirely AGAIN. THIS ISSUE CAN OCCUR EVERY DAY IF I'M NOT VERY DELICATE WITH THE MULTI-FUNCTION STALK. SOMETIMES, IT FLICKERS/TURNS OFF NO MATTER WHAT & I HAVE TO SWITCH THE LIGHTS FROM AUTO TO HEADLIGHTS OR VICE-VERSA TO ENSURE HEADLIGHTS STAY ON. THIS ISSUE HAS EVEN HAPPENED WHEN I DIDN'T TOUCH THE STALK AT ALL & I WAS DRIVING ON A DARK, RURAL HIGHWAY. LIGHTS OUT! THIS IS A DANGEROUS ISSUE THAT CAN INCREASE THE RISK OF A CRASH. PLEASE INVESTIGATE, THANK YOU. I plan on having this issue fixed ASAP at my expense, which I hope won't be too expensive. $$$”

“1. NHTSA Safety Complaint Draft Vehicle Info: Make: Kia Model: Forte5 SX Year: 2016 VIN: [XXX] Engine: 1.6L GDI (G4FJ Nu engine) Issue: This vehicle uses the 1.6L GDI Nu engine (engine code G4FJ), which is the same engine involved in Kia’s engine defect recalls and class action settlements related to connecting rod bearing failure and engine seizure risks. However, Kia is refusing to provide the Knock Sensor Detection System (KSDS) update, and no internal campaigns or recalls are listed for my VIN despite the identical mechanical risk. I purchased the vehicle in 2017 and was unaware of the extended warranty and safety campaigns until now. I am experiencing symptoms of rough idle and pre-knock concerns, and yet Kia and my local dealership are unwilling to escalate my case or even verify warranty eligibility. This defect poses a risk of sudden engine failure and should be addressed under expanded recall coverage. I am requesting NHTSA investigate inclusion of later-production 2016 vehicles like mine, which clearly share the same defective power train.”