How to turn off lights and screens in car?

[cplaw]

How can I turn off all the lights and screens (both the center console screen and dashboard) and remain in the car?

 

[DDotJ]

There's one way to do this, but you essentially have to turn the entire car off. Press Controls -> E-Brake and Power Off -> Power Off. Everything will shut down, including both the MCU and IC, the HVAC system, and the rest of the components (It takes about 2 minutes for all the subsystems to shut down as well). It's how to do a full reboot of the car.

To turn the car back on, simply press the brake pedal. The brake booster will also reset so the pedal will be stiff, just give it a firm press and the car will come back to life.