Hello I have an 07 Escalade EXT with dash warning lights on and when I checked for codes nothing shows. However, I can not get the codes to turn off. ABS (replaced the wheel hub as it once showed right front sensor bad), traction control, flat tire, check engine light light up but went off on its own. Dash also reads telling me to service this different issues. Any ideas before Cadillac just tells me it the computer?