Why does my 4 wheel drive not work 2004 gmc 1500 z71 i have no lights coming on on push button

SOURCE: four wheel drive not working properly

while in drive, engage the 4wd, then shift into neutral for 2 or 3 seconds, then shift back into drive. it works for my '98 ram.

SOURCE: 4wd will not engage on 2002 gmc sierra 1500

try going into reverse for 10 feet then go to drive for 10 feet that might help if not it is to the wiring to you 4x4 engage system (wires to your wheel hub)

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SOURCE: I have a 2001 GMC 1500 HD. The pushbutton four

see if the front driveline engages, then move to the front wheels if they do not engage check the actuator on the front diff

SOURCE: 2004 chevy silverado 1500 4 wheel drive wont work..

try selecting from nutreul or less then 3km

SOURCE: Will not go into four wheel drive when I push the

I would venture the guess that your button is broken. The easy fix it to remove it and jimmy rig something manual to activate the function. Then everything will work fine. Additionally, be careful not to let your contraption rub against the actuator under the dash in that area because it could spark while you drive.