Lane change warning, where???


New member
Hello: Just purchased 2017 GMC Acadia Denali. Many, many, gadgets. Learning slow but sales associate is very helpful except for this issue, if it is one. On my '14 Terrain, I had a setting that when I crossed center line or drifted of the right side of the road, I received 3 beeps alerting me. I also had the front collision set that slowed and braked with a verbal warning. I cannot seem to figure out how to activate both of these options, if they ARE available on my '17. I looked, the associate looked. I have searched the web. I do get the small icons for both options in the DIC. Both lights are on the option buttons on the console. I am assuming I have am missing a setting, not the same option as my '14, or ??? ANy help would be greatly appreciated.
Thank you.