Question about 2004 Chevrolet TrailBlazer

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My emission light is on on the dash - 2004 Chevrolet TrailBlazer

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Take it to any autozone and they will diagnose it for free.they won't reset it for you but they will tell you what is needed to fix the can't beat the price cause it is free.hope this info helps. take care and good luck, manny

Posted on Feb 07, 2010

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Take your vehicle to a shop and get the codes read.Most do it for free and only takes 10 minutes.This will tell you what is wrong with your emission system.

Posted on Feb 07, 2010


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