The seatbelt comes unbuckled without cause often and the lane keeping assistance pulls the car of to the right unprovoked.
The worst 2021 Kia Forte problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Engine22
- Steering9
- Electrical8
- Airbags7
- Transmission7
- Driver assistance4
- Seat belts4
- Body3
- Fuel system3
- Tires3
- Brakes2
- Acceleration1
- Lights1
- Seats1
- Visibility1
Specific symptoms reported on the 2021 Kia Forte
Recalls 2
Steering: column
- What is wrong
- Kia Motors America (Kia) is recalling certain 2021-2022 Rio and Forte vehicles. A bolt in the steering column may not be secured properly, which can cause the steering column to detach from the steering rack and result in a loss of steering control.
- Risk
- Loss of steering control can increase the risk of a crash.
- Remedy
- Dealers will tighten the lower steering column u-joint retention bolt, free of charge. Owner notification letters were mailed May 27, 2022. Owners may contact Kia customer service at 1‑800‑333‑4542. Kia's number for this recall SC235.
Recall number 22V304000 · Recall details
Air bags: sensor: occupant classification: front passenger
- What is wrong
- 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 restraint system in the front passenger seat. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."
- 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 this recall is SC207.
Recall number 21V164000 · Recall details
Technical service bulletins for the 2021 Kia Forte 72
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Misfire concern due to overrunning alternator decoupler
- Customer satisfaction: theft deterrent ignition cylinder protector and decal installation (CS2312)
- Infotainment system software update using update.kia.com
- Customer satisfaction: theft deterrent ignition cylinder protector and decal installation (CS2312)
- Owner notification (CS2312)
- Pitstop: technical operations: external damage to ultrasonic sensor
- Transmission fluid application guide
- Excessive oil consumption nu/gamma/theta/kappa engines
- Kia connect modem reset (SA611)
- Front strut bearing & spring pad replacement
2021 Kia Forte fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 2.0L 4‑cyl | FWD | 27-31 | 37-41 | 31-35 |
| 1.6L 4‑cyl | FWD | 25-27 | 32-35 | 28-30 |
What 2021 Kia Forte owners say
Most recent owner complaints, unedited.
It keeps getting broken into by the KIA boys in attempt of theft. It's a group that targets KIAs because they're easy. I now have to make sure my steering wheel is locked up. I was recently hit by another driver, i had to go to the hospital but for some reason the airbag did not deploy. I need some assistance
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.
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.
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)
Oil is burning out quickly causing the car to stop abruptly without any warning and caused damages to the engine.
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.
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).
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!
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.
Compare the 2021 Kia Forte
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Other model years
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Questions about the 2021 Kia Forte
Is the 2021 Kia Forte reliable?
Owners have filed 69 complaints about the 2021 Kia Forte, fewer than a typical Forte model year.
What is the 2021 Kia Forte year score?
The 2021 Kia Forte scores 86 out of 100 (good). The score compares it with the other model years of the Kia Forte: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2021 Kia Forte?
Engine and cooling, with 22 complaints. Next is steering (9).
How many recalls does the 2021 Kia Forte have?
2 recalls, covering steering and air bags.
What year does the Kia Forte have bad engine?
The Kia Forte model years with the most engine complaints are 2014 (220 complaints), 2012 (167 complaints) and 2015 (164 complaints).
What gas mileage does the 2021 Kia Forte get?
Official estimates for the 2021 Kia Forte range from 28 to 35 mpg combined. The most efficient version (2.0L 4-cyl, FWD) gets 27-31 city and 37-41 highway.
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