I have a 2019 Terrain and the adaptive cruise control can be turned off and the regular cruise will be operational. I would suspect you can do the same with your vehicle as they should use the sytem, as it is a GM product. I might be assuming here, but it would seem logical.-Adaptive cruse control in bumper to bumper traffic is great.
Yes it is but you cant seem to turn it off and just use the regular cruise if you wanted to, all you need is somebody doing 80k in front of you and the left lane bandit doing 85 k to drive you nuts. If you get snow on the front corner the lidar does not work and all the system shuts down. I know you would be wondering why use cruise in the snow but where I live, snow is on the ground for half the year with the other half being two months of bad skiing weather. The other nice thing about adaptive is the bugwit deciding to take the exit lane at the last minute and slowing right down on the right lane and then watch your red display start flashing and warning.
Your owner's manual should explain how to, if indeed it is the same system.