The Adaptive Cruise control cannot be used while wearing certain sunglasses. The car has a Driver Awareness Warning that is supposed to warn the driver if eyes are not on the road. It does not work with certain glasses. While driving at interstate speeds, I engaged the Adaptive Cruise control only to have it shut off and quickly slow down. After fumbling with different glasses while driving, I found a pair that will work with the Adaptive Cruise control. In the display, there is a toggle to turn off the Driver Awareness option, but as soon as you turn on the Adaptive Cruise, the Driver Awareness turns on again. If the Driver Awareness function cannot be turned off it is a safety issue. My favorite driving glasses cannot be used and I think this issue will cause accidents with the quick slowing on the highway. There should be a way to turn off the Driver awareness so I can use the adaptive cruise with my sunglasses.