&gt;  I can&#x27;t press a button to disable the brakes on my car, for instance.<p>The brake is not a safety feature that you expect the car to activate automatically on your behalf. The driver has to explicitly step on the brake pedal to activate it.<p>With regards to Summon, disabling its safety limitations is like disabling traction control, stability control, automatic emergency braking, lane keeping&#x2F;lane departure warning, etc., all of which <i>can</i> be disabled by pressing a button somewhere.