Oldsmobile/Buick Repair: on button to the rear window heater, rear window, fuse

Question
wheres the on button,or fuse to allow it to operate

Answer
If you are sure it has that option, the button should be right in the middle of the dash, below the heater controls.

Check the owners manual.

If you are not the original owner of the car, and think it has that option just because there is a grid on the back window...the window may have been replaced at some time.

Van