Lane Assist
 

Wh just traded for our new Silverado and. In our previous truck(14 HighCountry) our lane assist would beep when we crossed left or rt and out front alert would beep when we were too close to a car ahead. This truck does none of these. We have gone thru all the places to set or re-set but nothing. The visual doesn't seem to work properly either. Was wondering if anyone else has had this problem?