I just had a new 2009 Z3 installed w/ Bluetooth, backup camera, xm traffic & bypass. The bypass is not working after 10 mph. I do get the improper parking brake pop-up message. The shop has done many of these installs w/ bypass, they say it is done correctly and think these new 09 Z3 units have some new process to bypass and can't figure it out. If I reset the system it will work for a limited amount of miles and then the message starts again and locks me out. Anyone have any ideas?

They did the bypass wrong. Probably a loose ground connection. Tell them to do it right

yeah mine is doing this too. it was working for a bit just fine they later that night after my shop fixed it i was getting that error.

mine does the same exact thing. i rechecked the both grounds and they are good. just dont get it?

They told me that the VERY NEW one have a different bypass technique. Mine was new in Jan 09 but still took the old bypass just fine.