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  1. #1

    Default Service 4WD Message

    My 2002 Silverado 1500 HD message panel is indicating 'Service 4WD'.Is this a scheduled maintainance reminder?If not,what should I look for that I can service myself,before heading to the local dealership.Thanks for any advice.

  2. #2
    Sr. Apprentice
    Join Date
    Nov 2009
    Grandview, WA


    Need to have it scanned. I think you can take it to an auto parts store.

  3. #3


    Thanks for the reply,Jed.I spent some time on the site search engine,checked out some threads before finally crawling underneath and getting dirty.(Should have been my 1st step!)Found the bottom of the transfer case oily wet and the fluid level inside extremely low.I guess that cursed ' Service 4WD light ' probably saved me a bunch of cash in transfer case repair bills.

  4. #4

    Default What did you do to take care of the problem

    Hello Six Point,

    I have the same message from my 05 Suburban. Wondering what you did to take care of the problem. Was there a crack; a bad gasket; or did the oil just get low from normal use? Any suggestions appreciated.


  5. #5


    My 03 GMC Sierra did the same thing, they say to pop it into 4wd once or twice a month to keep everything in sync. I turn it on twice a month and it hasnt done it to me since. My ABS message always pops up here and there now

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