Question about 2007 Chevrolet Avalanche LTZ
If it is equipped with the code reader, you can. You just need to know the code to do it. It could be in the owner manual or you may be able to get the code from the dealership. More then likely, the oil didn't set it off. The light comes on because the computer detected a problem. Take it to Autozone and they can read it for free. I honestly don't know if the 07 is equipped with the code instrument. I thought it was, but not sure. If you can't find it, just go to Autozone, unless you can get a code scanner. If you have another question, please let me know. I am here to help.
Posted on Feb 18, 2011
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The MIL illuminates during a bulb test and a system test.
A DTC will be stored if a MIL is requested by the diagnostic.
You could have a bad instrument cluster ! Here is part of diagnostic flow chart for your vehicle !
Did you perform the Diagnostic System Check-Engine Controls?
Go to Step 2
Go to Diagnostic System Check - Engine Controls
Go to Step 3
Go to Step 5
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