ABS light is not on. No other warning lights.
"Service Ride Control" Error message comes up in window on istrument panel.
Ok, this system is a little complicated, this system has several parts and sensors and icluding the rear compressor. the first place to correctly check this system out is to have the system scanned for trouble codes. this requires a High end scan tool called a GM tech 2 scan tool, normally found at the dealers. once a trouble code has been pulled from the system, this would give us a much better idea what the problem is. here is some of the possible parts that could be the problem. pretty sure the oil drip is not related to the ride control
The ESC system consists of the following:
The "Check Engine" light was on for a while and it turns out the oxygen sensor before the cat in the exhaust needed to be replaced. So, if the exhaust temp was higher than normal - driving around in Texas in the summer (100 deg+) might that cause the exhaust solenoid to fail? A Dealer System Scan is $90. What is the cost/degree of difficulty replacing the solenoid? (I just put in new water pump myself last week)
Also: From your list above and as a practical matter/in your experience - which has the highest failure rate or is most often the cause of the Ride Control system failing?
Does the fact that I have gotten and intermittent "Stability System Disabled" warning while driving (mostly in heavy rain) lead you to think that it might be "steering handwheel speed/position sensor?"