Question about 2004 Chevrolet TrailBlazer

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Service 4wd light is on

Light came on a couple of weeks ago but after a few hours it went back off...It came on again and haven't went off...what kind of problems could I have...what do i need to have check.

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  • Jen Babcock Apr 01, 2009

    The Service 4wd drive light came on this morning and the light on the switch from 2wd/4wd/4lo was not working. The 4wd was defintely not engaging as I almost slid off the road several times on my way to work. any thoughts? a swtich?

  • Jen Babcock Apr 01, 2009

    The Service 4WD light came on this morning and the light on the switch from 2wd/4wd/4lo was not working. The 4WD was defintely not engaging, I almost slid off the road several times on my way to work. any thoughts? a bad switch?

  • yadayada
    yadayada May 11, 2010

    You will have a trouble code stored in the computer of the truck, go to Kragen and have them run a self test of the system to get the code, then post back here.

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  • Chevrolet Master
  • 60,775 Answers

This is almost always caused by a sticking 4X4 engagement motor, it may never happen again, worst problem is 4X4 will not work.

Posted on Nov 30, 2008

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