2026 Kia Seltos Owner Complaints

I purchased this new 2026 Kia Seltos with approximately 32 miles. The vehicle now has fewer than 600 miles and has experienced two incidents of sudden, intermittent, complete loss of accelerator response. During one incident in highway traffic, the vehicle unexpectedly began decelerating and pressing the accelerator pedal produced no acceleration or meaningful propulsion. I could not maintain speed or accelerate to move out of surrounding traffic. The vehicle became unable to move normally until it was turned off and restarted. An oil-pressure warning light illuminated during the failure. There was no meaningful warning before the loss of acceleration. After the first incident, an authorized Kia dealer found diagnostic code U200300 only in the vehicle’s history. The dealer attributed the condition to a loose right battery cable, repaired or tightened the connection, and returned the vehicle as fixed. The same loss-of-acceleration condition occurred again after that repair. On July 13, 2026, an authorized Kia dealership technician personally reproduced the failure during a 30-mile test drive. The technician documented that the vehicle felt as though it died during acceleration and that pressing the accelerator would not make the vehicle go anywhere. No diagnostic trouble codes were generated or found during this dealer-confirmed failure. The dealer and Kia Techline inspected the vehicle. The dealer documented proper oil level, no obstruction in the air filter or throttle body, no visible leaks, approximately 50 psi of oil pressure at idle, and no visible corrosion or damaged connector pins. The diagnostic records provided to me end while Kia Techline was still asking about the oil-pressure sensor. I have not been provided with a confirmed root cause or documentation showing what specific repair permanently corrected the loss of propulsion. The failure creates a serious crash risk because the vehicle can suddenly lose all useful acceleration in highway traffic, l

NHTSA ID

11755262

Incident

Jul 8, 2026

The contact owns a 2026 Kia Seltos. While driving across an intersection, another vehicle ran a stop sign and collided with the contact's vehicle. The impact occurred on the driver-side door, causing extensive damage to the vehicle. No property damage reported. The vehicle came to a complete stop after being struck. The contact stated no air bags were deployed. The vehicle was towed to a tow yard but was than brought to the residence. No warning lights were illuminated before the crash. A police report was filed. The vehicle will be fixed. The contact stated she was the driver and had a passenger (son) in the front. The contact sustained a severe head impact and was knocked unconscious. The head trauma caused total numbness across the right side of her face and directly impaired her peripheral vision. Additionally, the contact sustained deep contusions to her neck and severe structural disc damage to her lower back. The contact's son, who was also an occupant in the vehicle, experienced acute head pain following the crash. The dealer was notified of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unavailable.

NHTSA ID

11740703

Incident

May 7, 2026

The contact owns a 2026 Kia Seltos. The contact stated that while driving 25 MPH and depressing the brake pedal to make a right turn, the brake pedal went to the floorboard and the vehicle accelerated independently. A dealer was contacted. The vehicle was towed to the dealer to be diagnosed, and the contact was informed that the brake line needed to be tightened and the brake fluid reservoir needed to be topped off. The vehicle was repaired. The manufacturer was notified of the failure and informed that there was no warranty for the repair. The manufacturer denied the buyback request. The approximate failure mileage was 1,322.

NHTSA ID

11731946

Incident

Mar 3, 2026

Mileage

1,322 mi

The contact owns a 2026 Kia Seltos. The contact stated that the heating system was inoperable and was blowing cold air. The vehicle was taken to the dealer, where the contact was informed that the radiator cap was not tightened, causing air to build up in the system. The dealer tightened the radiator, and the vehicle was repaired. The contact stated that there was an abnormal ticking sound coming from the engine. The vehicle was taken to the dealer, where the contact was informed that the sound was likely coming from the fuel injectors. The contact stated that while driving from a complete stop on several occasions, the vehicle hesitated to respond. The vehicle was taken to the dealer, where an unknown part was disconnected. Additionally, the contact stated that while driving approximately 25 MPH and making a turn on a bypass, the brake pedal travelled down to the floorboard while depressed, and the vehicle failed to respond, causing the contact to panic. The contact shifted to park(P) and drove over a grassy area, but the vehicle failed to respond as needed. The contact stated that the vehicle eventually rolled to a stop. The vehicle was towed to the dealer, where it was diagnosed and it was determined that the driver's side rear brake line was loose and leaking, and there was air in the brake line. The vehicle was repaired. No further information was available. The failure mileage was approximately 1,200.

NHTSA ID

11722904

Incident

Mar 3, 2026

Mileage

1,200 mi