How do I get the door ajar light to go off

Lonnie, the door Ajar switches are on the inside of the door (see attached diagram). To replace it you will have to remove the door panel, the water barrier etc. To determine which door has the problem, open each door with the key in the on position. The door that does not make a chime is the problem door. Remember that the drivers door makes a different sound. This video should help you with the door panel removal.

"One of the sensors might be failing or broken. You'll have to open each sensor and check its connections to see if they are good. Then disconnect all of the sensors and test them one at a time and replace the one that isn't working.

EDIT: These images show what most of the door sensors look like on newer cars, they can either be on the car body where the door will press against it when closed or on the door where it will be pressed against the car body when the door is closed."

My Mazda Tribute just had the same problem, it has internal sensors in the door latch. One door handle felt a bit loose, it would open the door and the lock would hold when the door closed but the handle still felt loose, so I checked this one first. On removing the inner door panel I could see a part not fully returning, so sprayed some WD40 on this and wriggled it till it it returned fully every time, taking the looseness out of the handle and fixing the light problem.

My 2014 Rogue had front driver door open, door locks were locking and unlocking. Took vehicle to Nissan dealership, they looked at driver door and noticed dents on door frame where the door contacts the activator switch, dents were caused by closing door on seatbelt, we filled dented area in with tape and it corrected the problem immediately…. maybe this could be your problem also…….. Hope it helps …. Jim