Question about 2003 GMC Sierra

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Reset maintenance light

How do i reset the maintenance light on a 2005 GMC sierra duramax diesel

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Go to any Autozone and free of charge they will run the code for you, This will tell you "why" the engine light is on. If it's important - fix it or go to shop. If it's something that is minor and doesn't effect the trucks coming and going to next step. Hook up the code reader - again....see if the light comes back on. If it does then ask the Autozone employee if you hold the code reader. There is a "cancel" button to get rid of the code. You can delete the code. The Autozone is not supposed to erase the code. BUT HE CAN LOOK AWAY WHEN YOU DO IT!

Posted on Dec 20, 2010

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