You need to read up on the AWD system that is in the Telluride. The Canadian version is slightly different than the US version. The system is always active - it is not selectable on/off. There are different modes that attempt to send power to rear wheels vs front wheels. Read up on those modes. All info should be in manual.Sorry if this is a silly question, but how do you engage the all wheel drive mode on demand? Im in canada and dont have the 'lock' button, but i see other cars have a 'AWD' button or something similar. where is the tellurides?