What 134 owners told NHTSA about the 2016 Kia Forte Koup

Car runs fine at lower speeds. When traveling over 50 mph for ten minutes or more, then decelerating or stopping in traffic or at a stop light it stalls. It cranks right back up after you put it neutral and turn the key. We’ve almost been rear ended twice since this started. The car has only been driven about 3000 miles a year over the past 7 years and only about 45 mph. It has been to two shops and hasn’t been driven since May 15th.

NHTSA ODI 11751429

Vehicle won't intake gas. Cod P0451, P0456

NHTSA ODI 11750139

Unknown it makes a ticking noise check engine light came on and oil isn't low. Recently bought it.

NHTSA ODI 11747849

This Forte was not neglected and it was not abused. Nearly 90% of its miles came from highway commuting and interstate travel. It was completely stock, never modified, never driven hard. More importantly, it received fully synthetic oil changes every 3k-4k miles since new, well ahead of what Kia or the oil manufacturer even recommends, because I intended to keep this car long term. All of that is verifiable through Carfax. The engine failure came without meaningful warning. While driving, I noticed an unusual noise and pulled over as quickly as safely possible. I checked the dash expecting some kind of indicator and found nothing. No check engine light, no oil pressure warning. A nearby mechanic found the engine more than 2.5 quarts low on oil despite the vehicle being only about 3,300 miles into a fresh synthetic oil change. There were no external leaks. No oil spots at home, none at work. Nothing to explain where that oil went. After topping it off, the noise briefly stopped. With no warning lights on and the noise stopped, I thought we had caught it in time. I even felt confident enough to also have the mechanic change the transmission fluid as it was about due again. However, a few miles later, the engine suffered complete failure. Violent shaking, severe knock, then the check engine light came on. I shut it down immediately and pushed it home. Once home, I checked the oil again and found it had unusually darkened in an extremely short period of time. The vehicle has not been driven since and is currently inoperable. What troubles me most, beyond the financial loss, is that this vehicle gave me no real opportunity to save it. The oil pressure warning light never illuminated. More than two quarts of oil vanished within a single service interval with no external source and no indication whatsoever, even with checking the level periodically. I went above and beyond in maintaining this vehicle and still lost the engine. This could have been a catastrophe on the road

NHTSA ODI 11740160

This is a paint issue.

NHTSA ODI 11737302

Instrument panel lighting and radio lighting flicker constantly while driving. When the headlights are on, the headlights will also turn and off on their own, constantly. Because of this, I can not drive this car at night, in the early morning, in the rain, or whenever my headlights are needed. From what I've surmised, the issue seems to be the multifunction switch, which, coincidentally, Kia has an active recall on for one of their other models.

NHTSA ODI 11731694

While driving on I-95 at 60mph the car began to jump as it attempted to shift gears and the speed stalled to where it slowed down to 20mph and would not go any faster. The car slowed while I was in the fast lanes of the highway and I had to work my way to the right to the slower lanes to avoid abusing traffic congestion or any accidents. It was scary. Separately, my engine light has been on for the last year. I recently had the MAPs replaced and the light went off for two days and came back. It’s a steady continuous light, no flashing. The analysis check gives some other reason for the light but when checked it doesn’t fix the issue.

NHTSA ODI 11721142

Point 1)CVVT pin was sheared off. Not available for inspection, was replaced and discarded by KIA. Point 2)The vehicle had a rough start and stalled out while stopping. Had to have the car towed to the dealership. Point 3) UNKNOWN Point 4) No Point 5) The Check Engine Light would come on and off randomly. Code P0017 & P0016 would come up as pending when the engine light was on.

NHTSA ODI 11712704

I am filing a formal complaint regarding serious safety and mechanical problems with my vehicle. The brakes do not function properly and I have to add brake fluid every few days, which indicates a possible leak or brake system failure. This creates an extremely dangerous driving condition. The vehicle also has electrical problems, including malfunctioning lights. The engine has lost power, making it unsafe to drive, especially in traffic or on highways. In addition, the airbag warning light is on, which means the airbag system may not deploy in a crash, putting me at risk of serious injury or death. These problems have made the vehicle unreliable and unsafe to operate. I am requesting that these issues be inspected and repaired immediately at no cost to me, or that the vehicle be replaced or refunded under warranty or consumer protection laws. I am concerned for my safety and the safety of others, and I expect this matter to be handled urgently.

NHTSA ODI 11710115

Headlights shut off entirely multiple times when switching to high beams on dark road, almost causing an accident. Multi-function switch failing the exact way the Sorento switches are failing, confirmed by mechanic. This is a severe hazard when driving at night. There was no warning whatsoever.

NHTSA ODI 11694440

The contact owns a 2016 Kia Forte. The contact stated that while driving approximately 45 MPH, the vehicle started to lose motive power. The accelerator pedal was depressed; however, the vehicle failed to respond as needed and then stalled. The contact stated that the "Battery" symbol was illuminated on the instrument cluster. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the engine connecting rod bearings had failed, and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 85,000.

NHTSA ODI 11690736

The fuel input is not working properly. Will not allow fuel to go into fuel tank. Risk of fuel spilling and fire hazard.

NHTSA ODI 11685206

I own a 2016 Kia Forte LX and have been experiencing repeated and dangerous electrical failures with the headlight and lighting system. When I turn on the headlights, they sometimes do not come on at all, or they shut off unexpectedly while driving. In some cases, using the turn signal causes the headlights to cut out completely. The interior dash lights flicker between dim and bright, and the tail lights are also affected. This is a serious safety hazard because it results in sudden and complete loss of exterior lighting (headlights and tail lights) while the vehicle is in motion at night. It significantly increases the risk of an accident. Online owner forums and repair shops confirm this issue is widespread in Kia vehicles, often traced to a failing multifunction headlight/turn signal switch. Despite the frequency of these failures, there has been no recall issued by Kia. I am requesting that NHTSA investigate this defect in the 2016 Kia Forte and related models, as it directly compromises driver and passenger safety.

NHTSA ODI 11684559

The contact owned a 2016 Kia Forte. The contact stated that while decelerating due to traffic, the vehicle was struck in the rear end and pushed approximately a few feet, causing the vehicle's front end to crash into the rear of the vehicle in front. No warning lights illuminated. No air bags deployed. The contact stated that due to the impact of the crash, she had fallen unconscious. A police report was filed. The contact sought medical attention for bruises and head damage. The vehicle was towed to the local tow lot, where it remains, and was declared a total loss by the insurance provider. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The contact related the failure to NHTSA Campaign Number: 22V031000 (Airbags) however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was unknown.

NHTSA ODI 11682452

I purchased the 2016 Kia Forte on [XXX] from Bald Hill Kia in Warwick, RI. Within the first 30 days, there was a knocking noise which turned out to be the knocking sensor. I took the car to be checked on 11/1/2022 and paid to replace the knock sensor. On [XXX], the knock sensor acted up again so the knock sensor had to be replaced again. They also found a small evap leak and the charcoal canister was cracked and replaced. On 12/9/2022, the engine assembly was replaced. On [XXX], the check engine light came on and the O2 sensor was replaced. On 1/5/2023, the catalytic converter had to be replaced. On 1/16/2023, the canister purge valved was replaced. On 8/29/2023, the catalytic converter had to be replaced again. On 6/11/2024, the catalytic converter had to be replaced a third time! Over a year passed and on Saturday afternoon on [XXX] the check engine light turned on again and Kia was closed on Sunday so I took the car to Firestone for a diagnostic test and it turned out that it was the catalytic converter for the 4th time. I dropped off the car in 8/4/2025 and I'm waiting to see if the car can get looked at this week to confirm the problem for a 4th time. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11678419

The contact owns a 2016 Kia Forte. The contact stated while driving approximately 40 MPH and depressing the accelerator pedal to merge onto the highway, the check engine warning light illuminated, and the vehicle went into LIMP Mode. The contact stated that the vehicle failed to exceed 15 MPH. The vehicle was taken to an auto parts store, where it was scanned, and DTC: P1326; was retrieved. The contact stated that the code indicated a Knock Sensor Detection system failure. The vehicle was towed to a dealer, where the contact was informed that the manufacturer had advised the dealer not to diagnose the vehicle due to an incomplete oil change history. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 84,000.

NHTSA ODI 11677520

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. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11675975

While driving my 2016 Kia Forte with my [XXX] daughter in the car, the engine began making loud knocking noises and quickly deteriorated until it became unsafe and undriveable. This failure occurred without warning lights, oil pressure issues, or prior symptoms. We were nearly stranded in an unsafe location and had to immediately pull over and arrange alternate transportation. I later learned this issue aligns with a known defect in Kia’s Theta II engines, which have been recalled or covered under extended warranty in many cases. However, Kia has denied any support, stating my vehicle is “outside the factory warranty” and disqualified due to not completing a knock sensor software update I was never notified about. How Safety Was Put at Risk: My daughter was in the vehicle at the time, and we were placed in a vulnerable position with a failing engine, unable to safely continue driving. A sudden loss of power could have resulted in an accident if we had been in traffic or on the highway. This defect is a serious safety hazard, especially for families with young children. The vehicle has not been inspected by Kia directly since they declined to assist once they determined the factory warranty had expired. I am happy to make the vehicle available for inspection upon request. Warning Lamps or Messages: There were no warning lights or indicators prior to the onset of the knocking and failure. The symptoms began suddenly and escalated rapidly. My Request: I am requesting an investigation into Kia’s handling of these failures, particularly in cases where families were not properly notified about knock detection software updates and are now being denied support for what is clearly a known and widespread engine defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11668553

While driving our 2016 Kia forte 5 the engine completely failed and lost all power while on a busy highway. The engine in this vehicle was not part of the original 2016 Forte Recalls for the same issue and is not part of any current recalls for the same issue. It could have led to very severe injuries or even death due to the failure and complete loss of engine power only. Battery power remained on the car.

NHTSA ODI 11665911

We have a 2016 Kia Forte 5 that did not meet the criteria when the other 2016 Kia Forte's were recalled due to engine failure as it has a 2.0L engine. On or about [XXX], while driving this vehicle, the car lost all power and came to a stop on a busy highway. It still had electrical power, but failed to accelerate and we lost the ability to steer or control the car. We were able to get it off the road and called for a tow. The car was towed to a repair shop and we were informed that the engine failed, and needed to be replaced. This is the same situation that is occurring with the current Kia engine recalls. The garage attempted to contact Kia and we were told that due to the car not selling well in the US, it was considered a niche vehicle, and therefore no recalls were made. The car was in perfect running order with no signs of failure, no lights on the dashboard to warn of a malfunctioning component, and no audible sounds of a failing engine. Our safety, as well as others, was put at risk due to the car losing all power on a 55mph road that is heavily travelled and could cause an accident. The engine was inspected by a certified mechanic and all they can determine is that the engine failed and it needs to be replaced. This placed my wife in a dangerous situation that could have ended badly. To date, the car has been towed back to our home and sits in our driveway as there is no current fix to it, but the reason for the original recall on the 1.6L engines, and the current recall on Kia engines, is the same that occurred with this vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11652096

In December after getting letter in the mail saying I needed an upgrade to my car's knock sensor I took it to a Kia dealership. I received word from the dealership that my car had suffered a lower crank shaft failure and would need to be replaced. The dealership told me that this was a known issue and gave me a number to call to file a claim. After months of trying to get follow-up from the Kia claim office, they denied the claim. They said my engine had suffered failure before I had the knock sensor update and if it would have occurred after they would have replaced the engine. Kia knows that there is a severe issue with the engines they put in these vehicles and they are failing to fix the problem.

NHTSA ODI 11647234

I had diagnostic ran because of a knocking sound and stalling and the oil pressure warning light. I was informed by the technician that the oil pressure was extremely low. Upon further inspection they found metal shards in the oil filter blocking oil flow. They told me this is a known defect and that Kia should be responsible. Contacted Kia and they said it’s not covered. It has 98,289 miles

NHTSA ODI 11644716

We used to have a 2016 Kia Forte5 LX hatchback we been having problems with this vehicle the car would stall and it was having electrical problems like my turn signals not working even when the bulbs were replaced and same thing to the brake lights prior after I noticed the problem with the car was going to take it in to get ot looked at and serviced when exiting my home with the car and turning left the vehicle stalled while in drive I did have my emergency flash on but the other cars didn’t seem to notice the vehicle got t boned and we got in to a accident when trying to get this issue resolved

NHTSA ODI 11619374

When driving slow speeds such as driving through a parking lot my car stalls the radio plays without interruption and would not know it stalls except for the oil pan light and unable to accelerate because the car stalled all the leads me to believe the engine is at fault. When stalled at that point I pull over turn the key off then on starting the car back up (immediately starts without issue). I have searched for error codes and it is like the car doesn't know there is a problem. Below is one of the many forums complaining about the same issue. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11616900

In December 2023 the dashboard ABS, ESC and Brake Dashboard warning lights came on the car while driving. I checked for any ABS codes and noted a C2374 code. The car did not show any handling issues and I attributed it to a anomaly. However over 2024 the lights have come back on but they disapear when the car is turned off and then restarted. As this is happening frequently during the past 3 months I took it to two KIA dealers to have it reviewed. Both dealers say the HECU ( Hydraulic Electronic Control Unit) is failing. As the car now has 110,000 miles on it I was told by KIA that this is passed the warranty and not covered. I am surprised that a safety device is not covered and as this device requires no maintenance by the customer I attribute this to a premature part failure. I note there has been a related safety Recall Report 23E-073 issued for this part. I included the dealers diagnostic reports. If this vehicle is unsafe to drive then I need to be aware of that and KIA should investigate for similar occurrences.

NHTSA ODI 11611124