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service stability on 2003 GMC Yukon Denali

hey .i am having trouble with service stability message.can anyone help me?

Asked by for the 2003 GMC Yukon Denali
It is probably your rear air ride suspenssion system going out. I had the same message on mine for a little while. If your systems needs replaced check arnott industries online. You can get a complete system (air pump and shocks) far cheaper than at the dealer.