Quote:
Originally Posted by GMPartsman
I am a parts manager at a GM dealership in New Mexico and as far as the flashing 4x4 light, well, usually thats an indication of the encoder motor or the actuator going out. it can get quite expensive to fix so i wouldn't mess with that particular 07.
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There it is! Straight from the GMPartsman himself. Do you have any NM Hummer hate stories