EVs have a common problem involving brakes - they don't get used much anymore! This can cause a layer of glaze or rust to build up on the rotors, decreasing their ability to convert friction into heat, and wear evenly.

Brake burnishing mode allows you to follow Tesla's guided procedure to burnish the brakes (Bed the brakes), cleaning the rotors, refreshing the pads, and making your brakes feel and stop like new again.