I have a 2005 GMC Yukon Denali XL. I just purchased it in January. Trying to do some minor maintenance items before a 1000 mile trip to Florida. I was underneath it today and noticed this. See pic. It looks like part of the air ride compressor is corroded away. Does it need replaced ? I have no idea if it is working or not. I do not have any warning lights or messages. Thanks Pete