CONTROLLING DIMMING OF MIRRORS OR DISPLAYS USING DUAL-FUNCTION LIGHTING

A vehicle is disclosed. The vehicle includes a first indicator light associated with a first function or a first state of the vehicle (e.g., a brake light), and circuitry coupled to the first indicator light. The circuitry is configured to cause the first indicator light to emit light when the vehicle is performing the first function or is operating in the first state, and detect an amount of light incident on the first indicator light. Thus, the indicator light can be used to detect incoming light to perform various vehicle functions (e.g., automatically dimming mirrors based on the incoming light) without the need for a dedicated light sensor.