2017 Kia Forte electrical system problems

“I was driving this car and received a check engine light and lulled over to find an electrical fire had occurred under the hood. I was able to use a fire extinguisher to put out this fire. The car was towed to a Kia dealership near my home for confirmation and an estimate of the damages. It apparently was caused by a problem that Kia has had with the ABS/hydraulic electronic control units that can trigger electrical shorts.”

“The vehicle exhibits a chronic, systemic electrical failure characterized by the intermittent loss of critical lighting systems, including turn signals and brake lights. This failur5e has persisted over several years and thousands of miles, independent of battery replacements or specific usage patterns. The issue has been confirmed via multiple independent service interventions. Most notably, in February 2024, a third-party professional repair - which included the replacement of the Power Distribution Unit (Central Fuse Box) was performed to address these electrical faults. Despite this professional intervention, the defect recurred in May 2026. The failure of the turn signals and brake lights while in traffic resulted in a Law Enforcement stop and the issuance of a citation. Prior to total failure, the vehicle often displays erratic engine performance, including sputtering and hesitation. These symptoms were identified early in the Vehicle's history, but inquiries regarding recall campaigns for similar Makes and Models were denied by Authorized Dealerships, who cited recall registry despite exhibiting identical Mechanical and Electrical failure modes. The…”

“The headlights and dashboard lose power intermittently while driving at highway speeds, specifically triggered by using the turn signal. This is ongoing since January when I started having to take it for a recalls.More things kept happening. I kept having to have more repairs. Every time I went, I told them about this and it just keeps going on. Today I took a huge list of things they should check to see why it’s doing this. This is the following list that I gave them -2017 Kia Forte - Service Request: •Issue: Headlights/dash icons flicker specifically when using turn signals. •Issue: Average MPG keeps resetting (Computer Brownout). •Mandatory Checks: 1Multi-Function Switch (internal short). 2Manual Voltage Drop Test on the G01 Ground Point. 3Alternator Ripple Test (check for "dirty" power). Last night on my way home from my daughter’s house which is a 50 minute drive, it was in the dark pouring rain and no longer than I had got started going home, I used the turn signal and my lights flickered a little which that’s what they’ve done before. Then the icon inside the car for headlights flashed on and off, lights inside got very dim and then my headlights got so…”

“I have 2 problems with my 2017 Kia Forte sedan: 1) They have put an "environmentally friendly" coating on the wire harnesses under the front hood of the engine which emits a vanilla scent when warm and attracts rats that eat the wire harness when the vehicle is parked. They need to revert back to the original jacket material on the wire harnesses that don't attract rodents. I've spent hundreds of dollars repairing the wire harness, and it's an ongoing problem on wires I haven't replaced. The ones I've already replaced were with "original" materials that don't have the environmentally-friendly coating. 2) Paint (or clear coat?) peeling on the roof and door handles in less than 100,000 miles. I'm told this could be due to a faulty primer, but Kia won't do anything about it, as they say their paint warranty is only for 3 years or 36,000 miles, which is subpar.”

“The contact owns a 2017 Kia Forte. The contact stated that while driving with the phone plugged in on speaker, there was smoke coming from the adapter cord. The contact stated that the charger cord was melting. The adapter was unplugged by the driver. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 141,224.”

“Was traveling on interstate inside lane in heavy traffic and all of a sudden lost power,no throttle response, no warning lights,no priors,wasn't able to move to shoulder.. very close to being rear ended..all of a sudden power returned.. happened 8-12 times trying to get home.. no warning lights .. after got home hooked up my diagnostic scanner and ECU had code P050400 and BCM had no codes but in pids list under stop lamp fuse pid read broken. Checked fuses non were bad.tested brake switch and tested ok and adjusted correctly. Wiring and connectors appeared undamaged...”