Try 0000 to unlock the radio, if the radio does not take any more codes you can reset the radio by disconnecting the battery and reconnecting it after 1 min. If 0000 does not work, go to radio-code.com. There is like $12.00 fee, but that's better then the dealer and you get to keep the code. Good luck
1997 Chevy blazer, 6cyl. When the button for the 4wd is pushed, the vehicle does not go into 4wd,...
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1997 Chevy blazer, 6cyl. When the button for the 4wd is pushed, the vehicle does not go into 4wd, but stays in rear wheel drive. No lights go on on the button, no sounds from the vehicle, just no 4wd. Any suggestions?