4 Wheel Drive wont engage flashes and Service Autoride light - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

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Old 10-04-2015, 01:21 AM   #1
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Exclamation 4 Wheel Drive wont engage flashes and Service Autoride light

Im new here so go easy on me lol.
Here'* why i'm here. I purchased a used 2002 Yukon XL 2500 SLT 8.1 Liter in very good condition serviced regularly with no real issues to speak of and no codes to show. After tune up and replacing four GM air shocks by a mechanic unfamiliar with autoride system and setup. I brought the truck to a trailer towing vehicle outfitter and they installed a Tow hitch, heavy duty grille guard/brush bar, and a winch. When they drove it out of the bay the service autoride light had returned. Periodically the light would go out but very briefly. Upon start up the light is off after diagnostics runs and then returns within 10 to 15 seconds. In short, can the brand new four wheel drive problem be caused by autoride problem or because its not properly leveled as a result?
Thanks in advance for any light that can be shed on my conundrum
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