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2021 Kia Forte

The Verdict

82 Smooth Ride

The 2021 Kia Forte has 67 owner complaints filed with NHTSA. The most reported issues are body (26 complaints) and engine (23 complaints). With a Klunk Score of 82/100, it earns a "Smooth Ride" rating. If you're shopping for a Kia Forte, consider the 2024 model year which has 68% fewer complaints.

Safe Bet

The 2024 has 68% fewer complaints

View the 2024 Kia Forte dashboard →

82

Klunk Score: Smooth Ride

This vehicle year has significantly fewer complaints than average. A reliable choice.

How is this calculated?

The Klunk Score ranks this vehicle year against all others in our database based on total owner complaints filed with NHTSA. 100 = fewest complaints (top tier), 0 = most complained-about. Scores above 60 are better than average; below 40 means more problems than most.

Recalls 1

Active safety recalls from NHTSA for this vehicle year.

21V164000 AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE

Kia Motors America (Kia) is recalling certain 2021 Telluride, K5, and Forte vehicles. The Occupant Classification and Detection System (OCS/ODS) unit may not detect the presence of a child restrain...

Risk

In the event of a crash, deployment of the front passenger air bag, with a child in that seat, can increase the risk of injury to the child.

Remedy

Kia will notify owners, and dealers will replace the OCS/ODS unit, free of charge. The recall began March 18, 2021. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for th...

Reported Nov 3, 2021

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Under the Hood

Each number is a complaint. Darker = bigger problem.

YearBodyBrakesElectricalEngineTransmission
20105614609210
20112723415316
20122838451725
20132132261124
20149720932233
20153413411626
2017507711684
201837427615
2019354234142
2020271121814
202126210236
2022122362
20232931086
202481552

By Category

Body
26
Engine
23
Electrical
10
Transmission
6
Brakes
2

By Severity

1
29
2
28
4
10

Worst Problems

Compare Against

See how the 2021 Kia Forte stacks up against rivals.

Complaints

Body 4

The contact owned a 2021 Kia Forte. The contact stated that while driving at 45 MPH, the steering wheel locked independently, causing the vehicle to veer off the road into a construction site. The contact stated that the air bags did deploy. The contact stated that she sustained noise and neck injuries, including placenta rupture, causing early labor. Medical attention was required. The contact stated that a police report was filed. The vehicle was towed to an impound lot. The vehicle was deemed a total loss. The manufacturer was not notified of the failure. The approximate failure mileage was 150,000.

2mo ago
Engine 2

Driving under normal conditions April 20,2026, on the way to school. Got off the freeway and the vehicle immediately shut-off and the check engine light came on. Vehicle was stuck partially in the roadway and would not move. Vehicle was towed to Kia dealership and they found that there was no oil in the engine and that the oil drain plug was completely missing. This problem caused catastrophic engine failure resulting in the need for a full engine replacement. A routine oil change had been conducted approx. 2,000 miles prior to this on January 12, 2026. The vehicle had been driven daily since that oil change with no noticeable oil leak or problems preceding this event. Had this event occurred at freeway speeds, it could have caused serious injury to the driver and other motorists on the roadway at that time. It appears that the drain plug fell out since there was no other additional or noticeable damage to the oil pan or surrounding the drain plug itself. This information was confirmed by a photograph taken by the dealership conducting the repairs.

2mo ago
Engine 1

To Whom It May Concern, I am submitting a formal complaint regarding a serious safety issue involving my 2021 Kia Forte. Approximately one year ago, I purchased this vehicle used with approximately 56,000 miles. I have owned the vehicle for nearly a year without prior incident until a recent and significant failure occurred. While driving on a highway after work, the vehicle suddenly lost engine power. The RPMs dropped abruptly, and the vehicle began decelerating rapidly before completely shutting off. This occurred without any prior warning indicators, such as dashboard warning lights or messages. I attempted to restart the engine three times before it successfully turned over. Upon restarting, the engine produced a loud knocking noise that had not been present before. Since this incident, the vehicle has been unable to operate reliably. It will start and run briefly but stalls again after a short distance. The knocking noise persists, suggesting a serious internal engine issue. The vehicle remains in my possession and is available for inspection. Component/System Involved: The failure appears to involve the engine and/or internal engine components. The exact cause has not yet been diagnosed by a professional. Safety Risk: This failure posed a significant safety hazard, as the sudden loss of power occurred while traveling on a highway. This could have resulted in a serious accident, particularly if surrounding traffic had been heavier or less responsive. Inspection and Diagnosis: The issue has not yet been formally diagnosed or confirmed by a dealership or independent repair facility. Additionally, the vehicle has not been inspected by the manufacturer, law enforcement, insurance representatives, or other entities. Warning Indicators: There were no warning lights, messages, or other indicators prior to or during the initial failure. The only symptom Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

3mo ago
Engine 1

Oil is burning out quickly causing the car to stop abruptly without any warning and caused damages to the engine.

4mo ago
Engine 2

The contact owns a 2021 Kia Forte. While driving at various speeds, the check engine warning illuminated. The vehicle would start to vibrate. The vibration was more evident while slowing down or stopping at traffic lights. The vibration and the warning light had become a recurring failure. After turning off and restarting the vehicle, the check engine warning light was cleared. However, lately, turning on and restarting the vehicle failed to clear the warning light. Additionally, the vehicle lost motive power and stalled several times. While the vehicle was stopped and idling, the RPM was fluctuating as if the accelerator pedal was depressed. The vehicle was taken to the same dealer several times; however, the dealer was unable to duplicate the failure. The contact was advised that the vehicle was in good working order. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 125,000.

4mo ago
Electrical 4

On May 13, 2023, I was involved in a severe frontal collision on the passenger side while driving my 2021 Kia Forte. The impact caused significant damage, and my insurance company declared the vehicle a total loss. Despite the severity of the crash, none of the airbags deployed. I experienced body pain for several days following the accident. Given the nature of the collision and the damage sustained, the airbags should have deployed to protect the occupants. This raises serious concerns about the reliability of the Supplemental Restraint System (SRS).

5mo ago
Engine 1

Was currently stuck in slow walking traffic and once traffic began to progress the car overheated engine notice appeared. Pulled into a parking lot as soon as car was parked the vehicle turned off. This happened during the night and was an extremely traumatic experience! Car does have a diagnosis about the engine been blown. Still in the works of being fixed by the dealership. Very long process!

5mo ago
Engine 1

I am writing to report a serious safety concern involving my Kia vehicle. Shortly after getting an oil change, my car began making unusual noises and then suddenly stopped working in the middle of a busy intersection. This unexpected stall created a dangerous situation for both myself and other drivers. After having it towed to the dealership, it comes down to an engine malfunction which was not covered by my warranty since it just hit 70,000 miles. I have since learned that other Kia owners have experienced similar issues, and I am concerned this may be related to a larger defect or recall issue. I wanted to report this incident to ensure it is properly documented and investigated.

8mo ago
Body 2

So i took my car to sands kia in surprise az about my seat belts. Both the front driver and passenger belts come unlatched while driving. They said out of warranty so i would have to pay or they will do nothing. This should be a Kia issue. Obviously a defect in the seat belts. I can be driving on freeway and multiple times they will come unlatched while driving. So instead of having both hands on the steering will. I have to fiddle around to get it to latch again. It is a legal requirement to have working seat belts and u feel kia should fix this issue. I told them this and that i didn't feel this was something i should have to pay for and the service writer just asked me if i was leaving then. Hope there is no accident because seat belts won't work and there will be a lawsuit.

9mo ago
Engine 2

2021 Kia Forte VIN# [XXX] 107,000 miles While driving my Kia Forte on [XXX] i experienced a sudden noise without warning just 2 months to the exact date after an oil change. The vehicle became unsafe to operate and could not accelerate properly. In some cases it would no have it would feel like it was losing power and creating a scary and dangerous situation. A certified mechanic diagnosed there was no oil in my vehicle which matches the oil consumption defect identified in Kia's Theta II GDI engine recalls and nationwide class action settlement. Kia has acknowledged in public filing that is defect poses a risk of engine seizing and fire. Although my VIN is not currently listed under any active recall, my vehicle exhibits the exact same defect pattern as recalled vehicles, including sudden loss of power at highway speeds which is a significant safety hazard. Manufactures Response: I contacted Kia Corporate to request an engine replacement consistent with the recall and the settlement remedies and they refused to cover the repair solely because my VIN is not included in the recall list despite the defect being identical. Safety Concern: The sudden loss of power creates a risk of rear-end collisions, loss of control and potential fire. This defect can be life threatening and should not be excluded from recall coverage simply due to VIN range. Requested Action: I am requesting that NHTSA investigate why vehicles with identical engine defects, including mine have been excluded from recall coverage and compel Kia to provide a no-cost repair. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

11mo ago
Engine 1

My 2021 Kia forte GT is currently sitting in my driveway, undriveable. It started about 3months or so ago I had realized I was getting more and more frequent oil changes to the point where the car would be consuming a quart of oil in at least a week or less. Fast forward to this previous week, I now had a hard knock/rattle within my engine. The engine gave way on my way home which is a significant safety issue to myself and those who were driving around me. I have contacted Kia customer as they have had previous complaints as well as a lawsuit on the engine for the excessive engine oil consumption leading to possible engine failure. There’s no reason why an only 4 year old car should have a blown motor. I am thankful that I am personally ok and didn’t hurt anyone else while in the midst of driving my vehicle home.

12mo ago
Electrical 2

HVAC blower motor connector got so hot it has melted the plactic

12mo ago
Engine 1

The contact owns a 2021 Kia Forte. The contact stated while driving 65 MPH, there was an abnormal rattling sound coming from the engine compartment before the vehicle lost motive power. There was no warning light illuminated. The vehicle was towed to the dealer, where it was diagnosed and determined that the cylinders and pistons had failed, and the engine needed to be repaired or replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 93,532.

13mo ago
Transmission 1

Transmission, yes it’s available. I was driving on the highway and the vehicle began jerking and revving, slowing down and then speeding up. It is at a service center now. Now lamps

15mo ago
Body 2

Component/System Involved: Electric Power Steering (EPS) – specifically, a potential malfunction with the assist motor response timing. Description of Incident: While driving, primarily on the highway, I have experienced a recurring issue with the power steering system. The steering assist appears to delay activation after periods of inactivity—such as when driving straight. When I attempt a small correction (even a movement as small as 1/16 of an inch), there is unusually high resistance, followed by a sudden release. This results in an overcorrection and can create a cycle of steering instability as the same pattern repeats with each correction. Safety Risk: This malfunction poses a safety risk because the delay in steering assist and sudden release can lead to unintended sharp corrections or lane drifting, especially at highway speeds. The issue requires both hands on the wheel to maintain control, and the unpredictable nature of the steering increases the chance of losing control or colliding with another vehicle. Warning Lamps/Symptoms Prior to Failure: There are no warning lights, error messages, or chimes preceding or accompanying the issue. Mileage & Vehicle Info: Several people seem to be having the same issue and it happens at different stages of the vehicles life, but no one seems to have found a solution or source of the problem.

15mo ago
Engine 1

On Saturday, March 1, 2025, I took my 2021 Kia Forte LXS for a routine oil change. I had NO PRIOR issues, warning lights or anything with my vehicle. The oil change was performed. I then drove my vehicle less than 20 miles, the vehicle would then not accelerate and started to bog down. I was able to get my vehicle off the major I-4 interstate, however eventually the vehicle then shut down. The vehicle now will still start however is making this terrible clicking noise. I have had video of the engine running looked at by several mechanics who states the engine is blown. I have contacted Kia who clearly has known engine issues on several of their Fortes however Kia continues to state since mine is not currently on recall, they are not taking responsibility. Kia know they have several recalls due to engine issues. I cannot get a mechanic to work on my vehicle due to the recalls as mechanics only want to put in brand new engines due to Kia engine recalls. A new engine will cost upwards of $10,000. Again, Kia knows and had several recalls with engine issues

16mo ago
Transmission 1

The transmission went out while driving, entering the highway. It was intermittently missing a gear or slipping in about 2nd or 3rd gear. I first noticed it going about 40 mph and trying to accelerate to highway speeds. It was during a winter storm and other vehicles behind me had to brake unexpectedly. I wasn't sure if I felt for sure, so I continued to drive through many inclines and declines. The inclines became more difficult and the inability to maintain consistent speeds. I drove gently to the nearest Kia dealership which was in Salt Lake City about 60 miles away, where they informed me that I needed a new transmission. The car had about 75,000 miles on it and I bought it as a certified Pre-owned Kia with about 4,000 miles on it. The dealership plugged in the diagnostic code reader. But there were no codes detected. The service tech drove the car and felt the issue. A warranty representative inspected it about a week later. There were no warning lamps while I drove (mostly coasting downhill) from Rock Springs, WY. When I arrived to Salt Lake City, the triangle warning light came on. I drove about 10 more miles and the engine light came on. Almost all mileage has been on highways and at highways speeds as I commuted 75 miles each way for work on a turnpike between eastern Oklahoma and Fayetteville, Arkansas. There was little city driving. I lived in a small town. So, I had to travel state highways for most all errands (groceries, medical, etc.). There were no mechanical issues with the car ever until this.

17mo ago
Electrical 1

Passenger air bag/seat belt goes off like someone is sitting in passenger seat but no one is. Have to do seat belt for the alert stops

18mo ago
Engine 2

This car was sold to me without disclosing that the manufacture failed to have a engine security system on the car to at least "deter" auto theft.If the key to the car was programmed/chipped like other cars, it would provide at least some level of protection. I've already stopped car thieves from trying to steal it once by pure luck, but I'm like the thousands out there constantly worried that someone's going to try to take it in lieu of the social media challenges.The horrible settlement that out government gave us was to upgrade the software which provides NO help with deterring thieves from breaking in and trying to steal it.The reimbursement provided in the settlement is complete joke, and doesn't offer to properly repair or reimburse for after-market security systems.This is evident from the fact that insurance companies still won't insure this car, even after the software upgrade. The insurance companies are telling me that they still won't insure the car even with upgrade because it doesn't stop thieves from breaking into the car and causing comprehensive damage to the car.I can only find a few insurance companies that will insure the car, and the premium cost is twice as much as I pay to insure a car that's worth twice as much money! If our government or NHTSA was truly concerned, they would have demanded that the manufacture make significant change to the ignition/engine starter, i.e., changing out the ignition switch system with a programmed/chipped key, and/or engine starter kill without said key. If the manufacture and the government made this change a required "recall" to properly fix and advertised it nationwide, THEN thieves would at least be less inclined to cause damage, and insurance companies would feel more comfortable about taking the risk. This ongoing expense/problem for me has me seriously considering if anyone in my family should every purchase another KIA/Hyundai product again. Stand behind your product with some INTEGRITY.

20mo ago
Body 1

The car is making a noise that we finally found out it was the hood rattling. Took it to the shop and the hood latch looks to be secure, and non=adjustable. Was told that the rubber adjustable hood bumpers are too short, however the dealer said that they are correct, but agreed they can't be adjusted anymore to eliminate the noise. This gives us great safety concern that the hood is not property secured, or has a defective latch, in addition to the constant noise that the dealer said they will only address within the first 12 months or 12K miles.

20mo ago

67 total

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