Search in troubleshooting for "bang shift", as well as read the faq on contour.org's main page under "common problems" then "driveability"..
Also, a flashing O/D light can be scanned for codes, just like the CEL.. but I am not sure as to the life cycle of the code (not sure if it is "stored" like a typical CEL, or only for THAT particular start session...)
Ray
