What does the over drive off button do in jeep When I push it a green light comes on. The button says off?
when you push the overdrive button the green light is letting
you know that the overdrive is "off". Therefore you are driving in
a lower gear. This is a good thing if you are towing a trailer or
maybe going up a hill or bridge. It keeps you from burning up your
transmission, but otherwise if your just driving normal then
overdrive needs to be "on" which is more fuel efficient by allowing
you to switch into a higher gear.