Adaptive Cruise Control problems of the 2025 Kia Motor Telluride

On at least 3 occasions in the past nine months, when the cruise control was on, the adaptive cruise control feature suddenly applied the brakes on our 2025 kia Telluride. The last incident happened in may when there was no vehicle in front of or on either side of our vehicle. Another time the brakes were suddenly applied while attempting to pass a vehicle at about 70 mph. As soon as our vehicle entered the passing lane, the brakes suddenly slowed our vehicle down to 45-50 mph, almost causing a rear end collision with another vehicle approaching our vehicle in the passing lane at a high speed. This only happens when the vehicle is in the cruise control mode and we are not applying the brakes. The vehicle is available for inspection upon request. The dealer was not able to reproduce the problem. We reported this to kia customer care - case #xxx on or about Feb. 21, 2026. Customer care orally responded to our report, denying any software or design problem. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

My vehicle was purchased xxx - VIN #[xxx] - on 6 or more occasions, the while driving on the highway with cruise control on at 70 mph, the cruise control feature suddenly applied the brakes bringing the vehicle sometimes down to 48 mph for a few seconds and then re-engages the cruise control to 70 mph. This happens with no obsticals, vehicles, or other interference in front, however, there have been vehicles behind and this is a huge safety issue as it could cause a rear-end collision. My vehicle had been returned to the dealer, the first time for a week, they could not duplicate the issue, the vehicle was returned to me. On xxx I brought my vehicle again to the dealership for the same reason as the cruise control continues to disengages for no reason. The dealership has finally been able to duplicate the issue. The dealership still has my vehicle, not for 34 consecutive days. Kia tech line has been involved and now reports that it is not kia's issue and they have denied fixing the vehicle and indicate that it a 3rd party issue referring to satellite and internet issues. The dealership has now disabled the satellite connection feature and wants me to try the car out to see if the issue continues. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

While driving on the highway under normal conditions (clear weather, no nearby vehicles within approximately 1,000 feet), I heard a sudden loud “bang,” immediately followed by a large crack forming across the windshield. There was no visible debris impact, and no external cause could be identified at the time. Based on similar reports involving this issue in other vehicles, this appears to be a potential structural or manufacturing defect rather than road damage. While using adaptive cruise control in clear weather and with no traffic present, the vehicle will randomly decelerate as if detecting a vehicle ahead when none exists. This results in sudden, unnecessary braking without warning or indication. The issue has occurred multiple times and creates a significant safety risk, particularly at highway speeds where unexpected deceleration could lead to a rear-end collision.

While driving at highway speed and the adaptive cruise control engaged, the vehicle applied the brakes without driver input. The vehicle slowed gradually over several seconds even though there was no vehicle, pedestrian, or obstacle present in front of the vehicle. Road and environmental conditions were clear and normal, including clear weather, dry roadway, and unobstructed lane of travel. Traffic was flowing normally, and there was no lead vehicle. The driver was attentive and did not press the brake pedal. The braking occurred without any warning, alert, or collision indication and resulted in an unexpected reduction in speed, creating a risk of a rear-end collision from following traffic and on one occasion road rage (which has occurred due to this condition) as the driver thought I "brake checked" him. The vehicle has been inspected by the local kia dealership (spitzer kia of mansfield) and they could not replicate the condition. Kia has also been notified and a case number assigned (25773402) but with no resolution. This issue has occurred multiple times under similar highway driving conditions, indicating repeatable uncommanded braking behavior. Additionally, kia issued a “voluntary service campaign” for 2024 kia Telluride’s on July 31, 2025 for the same vehicle behavior. Unexpected braking at highway speeds creates sudden speed differentials and increases the risk of rear-end collisions, even when deceleration is gradual. The driver has limited ability to anticipate or prevent the event. No warning lights, audible alerts, or collision warnings were displayed. Conclusion the vehicle exhibits repeatable false or uncommanded activation of the automatic braking system during highway driving, consistent with a potential defect in the aeb/fca system. This condition poses a safety risk to vehicle occupants and surrounding traffic and should be reviewed by NHTSA.