KIA Forte engine problems

ENGINE

Engine burning excessive oil over a quart in 1000 miles. Catalytic converter code P0420 because of the excessive oil burning. Oil was always changed within the specified dealer milage range.

NHTSA complaint #11758838 — an unverified report by a vehicle owner.

ENGINE AND ENGINE COOLING

See attached document for complaint.

NHTSA complaint #11758293 — an unverified report by a vehicle owner.

ENGINE

I experienced a check engine light and had the vehicle diagnosed with codes P0017 and P0014. The vehicle was taken to a Kia dealership, where the technician found that the exhaust camshaft was free-spinning without the phaser and that the pin connecting the two had sheared. The dealership replaced the exhaust camshaft and phaser and released the vehicle as repaired and operating normally. Less than 24 hours after pickup, the check engine light returned during normal driving. While returning the vehicle to the dealership as instructed, the engine lost oil pressure and stalled three times. One stall occurred after exiting the highway and left the vehicle disabled in a high-traffic intersection, creating a serious safety hazard. The vehicle was returned to the Kia dealership and remains available for inspection. Subsequent examination reportedly found metal debris in the engine/oil pan and a possible restriction of engine oil flow. The exact cause of the sudden oil-pressure loss has not yet been definitively explained. The failure occurred immediately following a dealership repair involving a physically sheared internal engine component.

NHTSA complaint #11758381 — an unverified report by a vehicle owner.

ENGINE

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)

NHTSA complaint #11756624 — an unverified report by a vehicle owner.

ENGINE

My 2016 Kia Forte had a recall that was never performed and I was never told anything about the car fax or any recalls from where I got the car from, it needs a engine repair.

NHTSA complaint #11755914 — an unverified report by a vehicle owner.

ENGINE

This malfunction started in August of 2025 within 12 months of buying this new vehicle. A airbag sensor was replaced, then a national bbb case found the same malfunction only this time it includes the whole safty system failure. I gave the manufacturer a year and they have not corrected the malfunction. I am forced to drive a unsafe car *if I get hit my airbags will NOT DEPLOY*

NHTSA complaint #11753181 — an unverified report by a vehicle owner.

ENGINE

The contact owns a 2023 Kia Forte. The contact stated that while driving at an undisclosed speed, the vehicle made abnormal knocking sounds. No warning light was illuminated. The vehicle later lost motive power while driving with the check engine warning light illuminated. The vehicle was towed to the dealer, and it was determined that the engine needed to be replaced; however, the vehicle was not covered under warranty. The vehicle was not repaired. The contact stated that a week prior to the failure, the vehicle was taken to another dealer to determine the trade-in value, and no failures were found at the time. The manufacturer was made aware of the failure. The failure mileage was approximately 49,000.

NHTSA complaint #11752655 — an unverified report by a vehicle owner.

ENGINE

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 complaint #11751429 — an unverified report by a vehicle owner.

ENGINE

Power loss, engine failure. Will not start

NHTSA complaint #11750089 — an unverified report by a vehicle owner.

ENGINE

Coolant is burning and going into the oil in the engine. Occupancy indicator is malfunctioning causing a drastic amount of liability for death

NHTSA complaint #11750128 — an unverified report by a vehicle owner.

ENGINE

Recently had oil change . Right after B oil change engine light came on, a solid yellow light car is driving rough it’s a 2015 Kia Forte. Have an appointment Monday 7/13/2026 to have dealer to do a B diagnostic. The same place I had oil change

NHTSA complaint #11749789 — an unverified report by a vehicle owner.

ENGINE

2020 Kia Forte, 2.0L 14F engine, 109,000 miles: On July 3.2026 "check engine" light came on. Drove to local auto parts store to have code downloaded, P0017 cam position sensor. Car was performing fine, except for engine light. Drove car to Kia dealership. While driving, warning light for "front collision system came on and car began performing erratically. Left car at dealership for diagnostics. Yesterday received call from dealer, stating that engine needed total replacement due to "lack of oil". Quoted repair cost estimated at approximately $8,000. Car has been regularly serviced, including oil and filter changes per handbook. I have all records for the services. The were no indications of low oil pressure or engine overheating, no warning lights, all gauge readings displayed normal ranges. This same car had a failed transmission replaced approximately 2 years ago, which was covered by an extended warranty related to a recall. There have been 2 engine failure recalls as a result of 2 class action lawsuits for Kia cars with this same engine failure up through the 2019 model years, providing new engines and/or extended warrantees, however, this does not applicable to 2020 and newer models, even though it's the same exact same engine model with the exact issue causing the failure. Engine failure in traffic condions can obviously lead to immediate safety issues. I currently have a call into the Kia customer service/complaint department, but no resolution offerred to date.

NHTSA complaint #11749072 — an unverified report by a vehicle owner.

ENGINE

respectfully submit this correspondence to request formal assistance regarding my 2015 Kia Forte EX, a vehicle covered under the class settlement. The vehicle is exhibiting severe symptoms consistent with KSDS‑related engine failure, yet the required diagnostic protocol has not been completed by the servicing dealership. The KSDS software update was performed in May 2022, and the vehicle currently has only 92,000 miles on the odometer, placing it well within the settlement’s mileage parameters. Despite this, the dealership has failed to follow KSDS procedures and has not produced any written documentation of its findings. All communication with the dealership has occurred exclusively by telephone. Despite repeated attempts to obtain information, I have not received a diagnostic sheet, video recording, code report, KSDS documentation, or any written summary of the vehicle’s condition. All statements provided to me have been verbal and inconsistent. My **primary symptoms** include: - Persistent and worsening **engine ticking** - **Burning excessive amounts of oil** - Activation of **limp mode** - A **flashing check engine light** These symptoms align with known indicators of KSDS‑related engine failure and warrant immediate and proper diagnostic evaluation under the settlement terms. The dealership has verbally stated that the issue may be related to **spark plugs and ignition coils**. However, plugs and coils are a **well‑documented secondary symptom** of rod bearing failure, caused by oil contamination and misfires resulting from internal engine damage. This further supports the likelihood of KSDS‑related engine failure. Kia corporate has not referenced documentation of any kind. They have not requested it, indicated they are awaiting it, or provided guidance regarding its submission. Instead, corporate has repeatedly stated that they “must defer to the dealership,” despite the dealership’s failure to perform or submit the required KSDS diagnostic materials.

NHTSA complaint #11748470 — an unverified report by a vehicle owner.

ENGINE

Engine smoking when started up engine has oil in it scared to move vehicle because I have no idea if it’s going to catch fire or anything

NHTSA complaint #11748132 — an unverified report by a vehicle owner.

ENGINE

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

NHTSA complaint #11747849 — an unverified report by a vehicle owner.

ENGINE

My car wasnt getting enough power and it just died while driving it on the interstate to go home.

NHTSA complaint #11747096 — an unverified report by a vehicle owner.

ENGINE

I received the recall paper in the mail I did everything I was asked to do I. Received a final determination letter stating they was going to fix it and reimburse me for the incidental repairs the vehicle and rental car and they never did anything and now my car is no longer in my possession. They had me pay to tow it to Kia then it got impounded from there and now I don't know where it is

NHTSA complaint #11747100 — an unverified report by a vehicle owner.

ENGINE AND ENGINE COOLING

The contact owns a 2020 Kia Forte. The contact stated that while driving at an undisclosed speed, the engine seized. There was no warning light illuminated. The failure had occurred while the contact was driving on a major highway. The vehicle was towed to the dealer where it was diagnosed with engine failure. The contact was informed that there was no oil in the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was made aware of the failure, and a case was filed. The contact was informed that the failure was not covered under an unknown recall. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 103,000.

NHTSA complaint #11746397 — an unverified report by a vehicle owner.

ENGINE

Vehicle: 2012 Kia Forte Recall: NHTSA 23V-652 (Kia SC284) – HECU/ABS fuse recall My vehicle underwent this safety recall in 2025. The dealership replaced the HECU fuse. Immediately upon leaving the dealership after the recall repair, the same warning lights returned. I contacted the dealership immediately before fully leaving the area to report the issue. I also contacted Kia Corporate after the warning condition returned. Kia was aware the warning lights returned immediately after recall completion. I was advised if the vehicle later entered limp mode again, to contact Kia roadside assistance for towing support per prior guidance. The warning condition was not resolved by the recall repair. The brake warning light remained present, additional warning indicators later appeared, and the vehicle ultimately entered limp mode in January 2026, resulting in loss of reliable transportation and safety concerns. Due to this condition, I was forced to rely on a rental vehicle for an extended period at significant personal cost totaling several thousand dollars. I'm a single parent with a child requiring ongoing medical appointments, making reliable transportation essential. Kia only approved a limited "goodwill payment" of $191.40 for an earlier rental period, while refusing reimbursement for the substantially larger rental costs incurred after the recall failure and progression to limp mode. When the vehicle entered limp mode, I had to arrange towing because Kia assistance was not available as they closed out the recall. Kia is now requiring out-of-pocket diagnostic payment before determining whether the issue is related to Recall 23V-652, despite the warning condition returning immediately after recall repair and later progressing to limp mode consistent with the original failure symptoms. I am reporting a potentially ineffective recall remedy and unresolved recurrence of the safety condition addressed under Recall 23V-652.

NHTSA complaint #11745725 — an unverified report by a vehicle owner.

ENGINE

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 failure of the brake lights and turn signals poses a severe and immediate safety risk to myself, my passengers, other motorists and those on the road...as it creates an unpredictable environment were emergency stopping and lane changes cannot be communicated to the surrounding traffic. The electrical architecture of this vehicle is fundamentally flawed, as evidenced by the recurring nature of the defect despite multiple repair attempts, including the replacement of the primary fuse distribution center. The vehicle, all service records. third-party repair receipt, and relevant law enforcement citation are available for inspection upon request to support this report. The recurring loss of safety-critical signaling systems represents a systemic design defect rather than isolated wear & tear.

NHTSA complaint #11745123 — an unverified report by a vehicle owner.