Adaptive Cruise Control Fault

[Meanwhile]

The only time I've seen that adaptive cruise fault come up was in the last company truck I drove. That truck had the Wingman program or whatever it's called in it, told you that you were too close to the vehicle in front of you. If the sonar sensor got junk on it, snow/ice or mud, intentional piece of tinfoil, it would throw that code, the cruise and sonar wouldn't work. If you have that, the sensor should be on the front bumper near the center.