Kia Forte loss of power problems

Filed Oct 23, 2026 · Engine · IN

While Driving, the vehicle lost power and stopped. Found out the timing chain went out/broken. This car only had 62,000. 2019 Kia Forte

Filed Oct 8, 2026 · Driver assistance, Engine · VA

During a day trip on 9/19/26 my 2020 Kia Forte (purchased new and well maintained) lost power and several of the dash board lights came on including check engine, traction/stability control, and collision alerts. The car entered what I was told is "limp mode". I had the car towed home and after one shop misdiagnosed the problem I had it towed to the Kia dealership where purchased. I was told the engine had code p0017. I was sent a document that the "phaser sheared off p0017 exhaust cam and cvvd gear timing off-recommend long block-cvvd replacement may still have engine damaged after replacement" with a price of $9053.39 attached. Kia service manager is supposed to be seeing about assistance for repair as it is cost prohibitive and I have proof of proper maintenance however I am not receiving info on process unless I reach out. Car has been in Kia possession since 9/24/26.

Filed Oct 4, 2026 · Engine, Transmission · FL

On October 4, 2026, at approximately 27,870 miles, my 2024 Kia Forte GT-Line unexpectedly shut off while I was driving and making a right-hand turn into a parking lot. The vehicle was in Drive when the engine shut off. The instrument cluster continued to indicate “D” and displayed the message: “Engine Off! Shift to P or N, then start engine.” The tachometer indicated 0 RPM, and the gas pedal was unresponsive. I photographed the instrument cluster immediately following the event. This was not the first occurrence of an abnormal shutdown. On two previous occasions, while backing up in a parking lot, the vehicle displayed a similar instruction requiring me to place the vehicle in Park and turn off/restart the vehicle. During those events, the vehicle would not operate normally until the ignition was completely cycled off and restarted. The October 4 occurrence is particularly concerning because the engine shut off while the vehicle was actively moving rather than while parking. Loss of engine power while turning, crossing an intersection, entering traffic, or traveling at higher speed could create a significant collision risk. The cause is currently unknown. I am reporting the condition because the vehicle has now experienced multiple intermittent events and has demonstrated an unexpected engine shutdown while being driven.

Filed Sep 10, 2026 · Engine · GA

While driving my 2015 Kia Forte5 at approximately 80 mph on GA-400, I was traveling in the far-left lane when the vehicle suddenly and unexpectedly lost acceleration and engine power. Pressing the accelerator produced little to no response. There was no gradual reduction in speed or sufficient warning that the vehicle was about to lose propulsion. Because I was in the far-left lane, I had to maneuver across approximately four lanes of highway traffic to reach the shoulder. Fortunately, this occurred at night when traffic was relatively light, allowing me to get the vehicle to safety. GA-400 normally carries very heavy traffic during the daytime, and I believe the same sudden loss of propulsion under those conditions could have resulted in a serious collision because the driver may have no safe way to cross multiple lanes while rapidly losing speed. After the initial incident, I was able to drive approximately five minutes to my brother’s house. An independent mechanic inspected the vehicle, and the following day we brought it to an authorized Kia dealership and explained the loss-of-power condition. At that time, the engine had not yet completely failed. The dealership did not proceed with an engine repair/replacement and indicated that the engine/check-engine-light condition needed to be present. After leaving Kia, the problem became substantially worse. While the vehicle was being driven back, the engine completely lost power and the vehicle became disabled. We had to physically push the vehicle to a safe location. The vehicle is currently available for inspection. Kia later informed us that the vehicle had been reported as a total loss in 2017 and therefore they consider it ineligible for warranty coverage. Regardless of warranty eligibility, my reason for filing this complaint is the serious safety risk created by the sudden loss of propulsion at highway speed. I am requesting that the federal safety agency document and review this incident as a potential vehicle safety defect

Filed Aug 12, 2026 · Acceleration, Engine · CA

The systems affected appear to be engine, powertrain, and vehicle speed control. My 2014 Kia Forte, VIN [XXX] has approximately 118,000 miles. Since purchase in November2025 from Wondries Toyota, the vehicle has had repeated high RPM, poor acceleration, and loss of power when entering freeway on-ramps and driving uphill. It struggles to accelerate while merging into faster traffic, creating a safety risk as vehicles behind approach at higher speeds. Two different mechanics verbally advised that there may be an oil leak or oil consumption issue affecting the catalytic converter. I replaced the catalytic converter a couple months ago, but it became clogged again and the power loss continues. The vehicle is available for inspection. The problem has not been inspected by the manufacturer yet, and I don’t have a written diagnostic report at this time. There was no crash, fire, injury, or fatality, and no police report. Warning lights are unknown. The exact incident date is approximate. The issue has been ongoing since after purchase and occurs multiple times, especially during freeway merging and uphill driving. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 13, 2026 · Electrical, Engine · CA

Power loss, engine failure. Will not start

Filed Jun 1, 2026 · Driver assistance, Electrical · GA

While driving, the Forward Collision Warning system activated unexpectedly without any apparent hazard or obstruction in front of my vehicle. Immediately after the warning appeared, the vehicle suddenly lost speed and became very slow to accelerate. I was unable to safely increase my speed while traveling on a busy roadway, creating a dangerous situation and nearly resulting in a collision with surrounding traffic. Due to the sudden loss of power and inability to accelerate normally, I activated my hazard lights and was forced to pull onto the shoulder of the road for my safety and the safety of other drivers. There were no visible obstacles, vehicles, or road conditions that appeared to justify the activation of the Forward Collision Warning system. This unexpected activation and resulting loss of vehicle performance created a significant safety risk. I am submitting this complaint because a malfunction of the Forward Collision Warning system or related vehicle systems could potentially lead to a serious accident or injury. I have experienced recurring brake issues despite recently having the brakes replaced. The problem continues to occur, raising concerns that there may be an underlying electrical or electronic malfunction affecting vehicle performance. I was recently pulled over shortly after the brake replacement due to concerns regarding the vehicle's braking system. Because the issue persists after repairs, I am concerned about the safety of the vehicle and the potential risk of a crash or loss of control.

Filed May 8, 2026 · Engine · IN

While driving, the vehicle suddenly began knocking severely, smoking, leaking oil, and then shut off unexpectedly without adequate warning. This created a serious safety hazard and near fire risk. The engine assembly failed catastrophically. Dealership inspection documented: connecting rod punctured engine block bearing material found in oil pan broken piston components in oil pan oil leakage underneath engine complete engine seizure/failure The dealership confirmed and documented the failure and replaced the engine assembly. Repair records and failed components should still be available for inspection through the dealership. My safety and the safety of others were placed at risk because the vehicle suddenly lost power while driving. Oil leaked from the damaged engine and the engine compartment began smoking. The engine could have caught fire or caused an accident due to sudden loss of power. There were no adequate warning indicators before failure. No meaningful oil-pressure or low-oil warning appeared until the vehicle was already smoking and severely damaged. This failure closely mirrors known Kia engine defect investigations and Recall Campaign SC209 / the federal safety agency Recall 21V259000 involving: connecting rod bearing damage piston oil ring defects excessive oil consumption engine seizure engine stall fire risk Although my VIN is not currently included in the recall population, the documented failure symptoms are substantially similar. I also report that another Kia vehicle in my household, a 2017 Kia Sorento, experienced a separate rod-bearing-related engine seizure despite proper maintenance and documented oil changes. The connecting rod blew a hole through the engine block, causing oil leakage and heavy smoke while driving. The vehicle could have caught fire or exploded, placing my life and others at serious risk due to sudden engine failure without adequate warning. Engine replaced under warranty; concerned for safety after 2 similar Kia failures.

Filed May 7, 2026 · Acceleration, Electrical · NC

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 dim that I had to follow other cars that had LED headlights down an interstate at 65 mph or less safely just to get to my exit to get home for over 45 minutes. I have mentioned this to them repeatedly, but I gave this list to them this morning. I called a little bit ago just to check on things and I was told “well we’ve been driving it for over an hour and we can’t seem to get it to act up”. I said are you not going to do the things that I stated and actually physically touch and look and not just sticking it on a computer. He rudely asked- what are you talking about? It’s all computer. That’s what we do.I’ve had to deal with this since pretty much the middle of January 2026. We are now here at May 7 and it got at its worst last night and horrified me and my safety.When I have car will upload docs

Filed Apr 21, 2026 · Transmission · OH

I am reporting a transmission failure in my 2020 Kia Forte with approximately 54,000 miles. The vehicle experienced a sudden and complete transmission failure on March 19, 2026, on the highway from Cleveland to Cincinnati. after being owned for less than seven months. The vehicle is now at a dealership 2.5 hours away, requiring a full transmission replacement. This appears to be a premature failure and not consistent with normal wear and tear for a vehicle with this mileage. I am aware of a Technical Service Bulletin issued by Kia regarding IVT transmission issues in 2019–2021 Kia Forte models, which may be related to this failure. As well as legal investigations and lawsuits regarding said transmission models. Given the safety implications and potential for loss of power while driving, I am submitting this complaint for review.