Randomly occurring for a few months. The truck would alarm that you were in front end collision whether driving normally down road or going into reverse into parking spot. Heads up display would alarm, warning on display screen, and seat vibrate.... scare the hell out you!!! This occurred mostly in the cold months and hasn't done it since warmer. Not sure if that relavant. Service at dealer did replace both the front end sensors in bumper but not sure that fixed the issue. Truck has multiple issues.