Car nav vs. Mobile app disagree on route

[boulder.dude]

I was sitting in the car in Boulder, Colorado and I asked it to plan a route to Tusayan, AZ near the Grand Canyon. It gave me the attached route. It seems a tad optimistic as this route crosses one of the biggest L3 charging “deserts” in the lower 48: the Navajo Nation, between Blanding, UT and Tusayan, AZ - 256 miles with elevation gain.

While sitting in the car I used the Tesla mobile app to plan the exact same trip. It gave me a less optimistic route with 2 additional charging stops including an 80 mile detour around the charging “desert.”

Any ideas why the mobile app would be more conservative than the car?

 

[Sophias_dad]

TIL you can plan a route in the mobile app.

 

[Wattsisname]

I was sitting in the car in Boulder, Colorado and I asked it to plan a route to Tusayan, AZ

Sounds like the opening of an Eagles song.