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24 Apr 2007

Repair Service 4wd Light on 2000 Chevy Silverado

Author: Tim Conner | Filed under: Tutorial

There is a common problem with 1999-2001 Chevrolet Silverado where the service 4wd light comes on in the vehicle. The light is scary and led me to believe there were major issues with my four wheel drive, but it turns out its a quick, cheap, and painless fix by swapping out the 4wd selector switch. If you take it to a dealer they will charge you from as low as $180 to as high as $400. I’ll show you how to fix it for $50 in 5 minutes.

Update: Before step 1… make sure your transfer case fuse is good. On my truck it’s labeled ATC (Auto Transfer Case) and is located in the main fuse box under the hood.

Step 1: Remove the Dash Plate (to get the part number of your switch)
Pop off the dash. It’s simple and doesn’t requires tools. Tilt your steering wheel down and put the gear shift in 1st. Now using your fingers, pull the dash plate off. There are about a dozen points where it connects. Pop them off and pull the dash plate off.
Remove the Dash Plate

Step 2: Pop out the 4wd Select switch
To remove the four wheel drive select switch there are little plastic locks on the top and on the right, hold them up and pull out.
Pop out the 4wd Select switch

Step 3: Get the part number of the switch
Turn the switch over and look for the part number on the back. Mine is a 2000 Silverado Z-71 Extended Cab. The part number is the longer of the two – 15709327. I believe they used this part for 1999, 2000, and 2001.
Get the part number of the switch

Step 4: Order the part
You can get the part either from GMPartsDirect.com or a dealer (who will probably charge you more). It was about $40 plus shipping from gmpartsdirect. There is a search box on the front page, punch in the part number you wrote down from the back of the switch.
Part Description on GMPartsDirect.com

Step 5: Put in the new part
Once the part arrives, use the steps above to remove the switch and replace the new one. Total repair time: 3 minutes (and I was a huge dork and took pictures).
Pop it in

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