I went to Squamish 3 times and had no issues. The SIM card GPS actually works really great. If you call Robin at the Robson St. center, she can get your 3G to work in Canada while you are there. I never got it to work, but she said she did add my vin# to the Canadian 3G list. Squamish is on the way to Whistler and is a beautiful drive.
Perhaps it is because I took the ferry over from Anacortes, WA via San Juan Islands to Sidney, BC, drove to Butchart Gardens and then took a second ferry from Swartz Bay to Tsawwassen, BC.
The GPS was already acting-up on Vancouver Island, but when I got to Tsawwassen -- nothing.
After I arrived @ Tsawwassen, I was on a relatively new highway that DID not show up on my dash GPS at all.
The car kept telling me to exit, but it was mostly controlled by concrete barriers on both sides (some signs did indicate a way back to US, but I was headed NORTH to Squamish)
And there was almost NO OTHER traffic on that highway.
And there was a (jagged) blue line on my console, but it only had a light gray grid.
And there was either a single small bar connectivity on my 3G service, or mostly NONE>>>>
I took delivery of my car in June 2013, so perhaps I have an older version of GPS SIM card than what you have.
Or maybe because the car was in the hold of the ship for such an extended period of time, it disconnected and simply did not reconnect to the data source.
Or perhaps you simply drove over the border, and then back again, and your car never lost data connectivity.
I called and spoke with a Service Technician, and even though I am
typically up for a bit of a good adventure, this event had tinges of the Twilight Zone.
No data connectivity, no viable GPS indications.
Oh, and of course to add to it all, there was road construction right where the car's SIM card GPS tells you to take a left, and it is now a long row of orange traffic cones.
I did switch the car over to km, just so I would have some amount of bearings and speed, although never really a good sense of where I actually was.
The second Service Technician kept telling me there was a Walmart on my left, but I couldn't see it because of the trees.
I did finally see it on the return trip (break in the trees).
I had brought a Road Atlas with me, but the scale of the (Vancouver vicinity) map compared to the complexity of the roads and bridges was basically useless.
The Service Technician said it is because Canadian AT&T is not recognized by the car.
Lucky Canadian Tesla owners have full access to US AT&T data plan.
Oh well..., maybe it was just a bad dream or something.
