Garmin Metroguide discontinued autorouting in the GPS after V4 back in 2003 or so when they introduced City Select which became City Navigator. I think the logic back then was that there were many GPS that didn't handle "Follow Roads" autorouting (only "Direct" autorouting) so they offered two products - Metroguide for the non-autorouting GPS and City Select for the autorouting GPS. City Select was also LOCKED (i.e. installs maps on two GPS only, later changed to one GPS with City Navigator). So, Metroguide USA and Europe kept getting newer versions (up to V8 or V9) and they didn't autoroute and weren't locked. However Canada Metroguide has never been updated past V4 (2003?) until now, and V5 follows past practice of disabling autorouting, but LOCKING Metroguide is new.
The non-autorouting in Metroguide after V4 isn't an issue as Metrogold (a $6 download from geodude) restores autorouting.
Bob