deadband

The thermostat was errantly set with a deadband from 18°C to 27°C, causing the air conditioner to not turn on below 27°C, and the heater to not come on above 18°C.

The game will not respond to small movements of the joystick, until the stick is pushed out of its dead zone.

The steering system has so much backlash that it takes a full rotation of the wheel to exit its deadband and affect the steering.