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Service alert


Bill Mullen

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Posted

My 2015 GMC Denali recently has been  (beeping)  then showing    Service   Driver Assist System.

My local dealer in Tustin Ca has not a clue (Service department over the phone) 

as to whats going on.  Can you please help?

 

 

Posted

Wouldn't expect any service department personnel to provide diagnostic service over the phone. 

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