What is automatic?

automatic door locks

Glossary “automatic door locks” Definition:
Passive system used to lock all doors when the required conditions are met. Many systems lock the doors when the gear selector is placed in D, the ignition switch is in RUN, and all doors are properly shut. Some require a VSS input.

automatic headlight dimming

Glossary “automatic headlight dimming” Definition:
Automatically switches the headlights from high beams to low beams under two different conditions when light from oncoming vehicles strikes the photocell-amplifier, or light from the taillights of a vehicle being passed strikes the photocell-amplifier.