My 4wd don't work on my 99 GMC jimmy it does nothing when you push the button
do the lights blink when you select any of the other buttons?
On mine they only blink if its in neutral I hear a click and the 4wd LO blinks a couple of times then back to 2wd. Wont do anything if its in gear.
Search GMC Jimmy Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
GMC Jimmy Experts