2016 Maxima collision light has been stuck on for weeks and I also can not set cruise control

 

You'll need to have the car code scanned first, even if you do not have a check engine light. You'll be looking for body codes related to the adaptive cruise control system. There is a radar sensor In the Lower grill area. If the car has been hit or slightly bumped in the front end, The Radar sensor mounted their could be damaged or out of alignment slightly or unplugged even simply. Have it Checked. Keep us updated on what you find.