Hello I also have been having the exact same issues with my 2010 GMC Denali 6.2l since I bought my truck 3 years ago. I have only got the p0011 code a handful of times but my service stabletrac illuminates almost daily now. The p0011 seems to be oil related but I never thought the stabletrac was. If anyone has figured out these issues I would definitely appreciate any input thank you.