Service 4 wheel drive

Discussion in 'GM Powertrain' started by Z71FTW, Oct 23, 2010.

  1. Z71FTW

    Z71FTW Rockstar

    okay so on my message board in my 2000 1500 z71 the service 4wd message keeps coming up. but some times it will not be on or just stop showing up while im driving or when i turn my truck on. any help on what might be causing problem would be a great help thanks, zach
  2. Springthing

    Springthing Epic Member 5+ Years 1000 Posts

    Is your 4WD a push-button type?

    I'd say head to your local autozone/oreilly and see if they have the code reader there you can borrow. Plug it up and see what it says.

    Does the truck go in and out 4WD without any problems? With AND without that light on?
  3. 54chev3100

    54chev3100 New Member

    Chances are your gonna find a code b2725 and your gonna need a 4wd switch if it is an electronic type system

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