nateads wrote:2015 SV. Can anyone point me in the right direction to find out what the latest firmware for the car
The only thing I can think of that should be checked is the car's cell phone modem or TCU. There is limited functionality, the car can update the map of charging stations, Google_send_to_car can send a destination, you can do a Google search for a destination, remote charging and remote climate control.
In the USA, the early cars had 2G networking. As the 2G network was phased out, the TCU needed to be updated to work with 3G. However, the new 3G modems would hang and otherwise misbehave, and someone would need to pull and replace the audio fuse to restore proper functionality. There was a recent update to these modems that seems to have improved this issue. I think it was TSB NTB18-045
However, I don't know if this applies to Canada.