2021 KIA Forte Reliability Report

Owners report several issues with the 2021 Kia Forte's power train, primarily involving transmission malfunctions. Complaints frequently mention erratic shifting, loss of acceleration, and transmission slipping, often at highway speeds. These issues occur at various mileages, with some reported as early as 35,642 miles. Safety implications are noted, including sudden deceleration and unexpected stops, which could pose a risk in traffic. Additionally, multiple owners describe instances where the car stalled or required towing, with some cases involving the need for transmission replacement.

Owners of the 2021 Kia Forte frequently report issues with air bag non-deployment during crashes. Four out of five complaints involve crashes where the air bags did not deploy, with three incidents resulting in injuries. Typical symptoms described include the air bags failing to deploy in head-on and side-impact collisions, even at speeds up to 45 mph. Additionally, one report mentions a passenger air bag alert activating without a passenger present. The complaints do not consistently mention specific mileage, but they suggest potential safety implications due to the repeated non-deployment of air bags in crash scenarios. This information may be relevant for prospective buyers considering the safety performance of this vehicle model.

Owners of the 2021 KIA Forte report issues with the electrical system, including the vehicle shutting down unexpectedly while in drive, and significant engine-related warnings such as persistent service engine lights and multiple engine misfire codes. Some complaints highlight severe battery terminal corrosion leading to arcing and potential engine replacement. Additionally, there is mention of an HVAC blower motor connector overheating and melting. A separate complaint details a theft incident linked to an unresolved anti-theft system vulnerability, which had been subject to a recall. These issues appear to occur across various timelines, with some potentially posing safety risks, such as loss of vehicle control and increased theft susceptibility.

Owners of the 2021 Kia Forte report issues related to tire pressure and sudden tire failure. A common pattern involves tires being inflated to the maximum PSI as indicated on the sidewall, with one owner noting pressures of 51-52 PSI instead of the recommended 33 PSI on the door placard, raising concerns about potential tire damage after approximately 3,000 miles. Another owner describes a simultaneous blowout of two tires on the driver's side, with the tires appearing shredded, occurring after six months of ownership. These issues suggest potential safety risks, such as loss of control, particularly in hot climates like Arizona. Buyers should be aware of these reports and consider checking tire conditions and pressure settings when evaluating this vehicle.

Owners of the 2021 KIA Forte report issues with the hood rattling while driving, despite the hood latch appearing to be secure. Complaints frequently mention that the noise is attributed to the hood bumpers, which are described as non-adjustable and too short to effectively cushion the hood. There are safety concerns expressed by owners about the potential for the hood to become unsecured while driving. These issues are noted regardless of mileage, though one owner mentions dealership willingness to address the problem only within the first 12 months or 12,000 miles. Used car buyers should be aware of this persistent structural noise and the associated safety concerns.

Owners of the 2021 KIA Forte report issues related to vehicle theft and engine performance. One complaint describes a theft incident where the vehicle was easily started using an iPhone charger after removing the steering wheel cover, indicating a potential vulnerability in the ignition system. Another complaint highlights excessive oil consumption and engine noise, diagnosed as a "lifter tap," with necessary repairs to the lower engine at approximately 11,000 miles. These reports suggest potential security and mechanical issues that buyers should consider, particularly at lower mileages.

Owners of the 2021 KIA Forte report recurring issues with the vehicle's brakes, primarily characterized by a persistent squeaking noise. Complaints frequently mention that these noises appear within the first few months of ownership, with some vehicles having as little as 30 miles initially and experiencing issues by 7,000 miles. Multiple owners describe needing multiple visits to dealerships for brake-related concerns, including the application of conditioners and replacement of braking components. In one instance, a brake caliper broke, requiring towing, but no crashes or loss of control are reported. Prospective buyers should be aware of these early brake issues and ensure any used vehicle has been adequately serviced.