Originally Posted by
nextelbuddy
i just did a GM5 replacement for a local guy.
he had a touring but same type of issues.
his rear windows would go down but not up, holding lock button to close windows would open sunroof, rear hatch/trunk light..
i replaced his GM5 with a known good one that had a same or higher software and hardware version and just flashed it with defaults (blank MAN file in NCS Expert). it coded the module as a touring and all was well for him.
if you have coding software, go to the junk yard and get one for like $10. just make sure it has the same or higher software/hardware version as your original module.