BSM problem

My BSM monitor just stopped working

the on off button in dash does not have a green light Any ideas ?

There is no malfunction warning and my mirrors do beep when I unlock truck

 

Check the fuse for the system would be my first step.

 

So your '17 has a buzzer inside each door mirror?
Seriously now, since it's Friday, the BSMS sensors are in the inside corners of the rear bumper. If snow/mud or anything is interfering with sensors they fail, but you'd get a warning in the combination meter.(gauges)
The system also shares the 2 fuses that provide juice to other circuits besides the BSMS.

The mirrors only flash an indication light behind the glass.

Turn signal on the door mirror is not related to the BSMS.