This error started after I changed my 17" rims to my 23" rims. I get check tire pressure obviously becauase I never removed my TPMS to my new rims and tires. But would this have any affect on the service auto ride at all. I dont know if the autoride is based on the level of the tireto the automobile or am I way off. i turn on the Yukon and I can hear the compressor pumping up but I still get the service error.While the compressor is still pumping upit pumping it up.

sounds more like a leak in the system or there is a sensor not working, seems more likely a leak. my bonnie was leaking around the bellows around the strut. take some dish soap and water and a spray bottle and soak down suspect areas and look for bubbles.

Posted in wrong section. Moved to GMC for better visibility.