Adaptive Cruise Control problems of the 2026 Chevrolet Traverse

I am reporting a serious safety concern involving my 2026 chevy Traverse that occurred on may 9, 2026 at 6:46pm. While driving at freeway speed in the carpool lane with adaptive cruise control and gap assist engaged, my vehicle suddenly applied the brakes unexpectedly even though there were no vehicles directly in front of me. The nearest visible vehicle was a significant distance ahead, and there was no apparent reason for the braking event. This was not a gradual deceleration. The vehicle actively braked. I was passing under or near an overpass at the time, which makes me wonder whether the sensors misread something. Regardless, the sudden braking created a dangerous situation because vehicles were behind me, and the driver behind appeared to think I was brake checking them. This could have easily caused a rear end collision. As a result of this incident, I no longer feel I can trust these safety/driver assistance systems and have since disabled those features because I do not feel safe relying on them until this issue is properly investigated and addressed. I am requesting that this issue be formally documented, that the vehicle be inspected for any malfunction related to adaptive cruise control, automatic emergency braking, forward collision warning, or related sensor systems, and that I be advised whether this is a known issue with the 2026 Traverse. If there are any software updates, technical service bulletins, recalls, or corrective actions available, please let me know. This is a serious safety concern, and I would appreciate guidance on the next steps.

The car is equipped with a supercruise feature, which should ideally enhance the driving experience. However, I've encountered a significant issue: even when this feature is not activated, the vehicle tends to oscillate between the lane markers. This problem becomes particularly pronounced under poor road conditions, such as when it's raining. The moisture on the pavement obscures the lane markings, and in these instances, the car automatically drifts toward the right side of the road. As a result, I find myself constantly struggling to maintain control of the steering wheel in an effort to keep the car centered within the lane. When it veers off to the right, I must exert extra effort to correct its direction, which can lead to a hazardous driving situation, regardless of the weather conditions or time of day. The need for constant corrections not only creates frustration but also increases the risk of losing control, making this a serious concern for both my safety and that of other road users.