The Tesla mobile app's home screen allows you to:
See the name of your vehicle (if you have one).
View your vehicle's estimated range.
See which drive mode the vehicle is in (Park, Reverse,
Neutral, Drive).
Lock or unlock your vehicle.
Enable maximum defrost to warm your vehicle in cold
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To manually cancel Traffic-Aware Cruise Control, press the brake pedal or
briefly move the drive stalk up once. The cruising speed icon on the touchscreen
turns gray to indicate that Traffic-Aware Cruise Control is no longer active.
WARNING: Do not hold the drive stalk up for more than one second.