2011 Acura RL Owner's Manual - Page 147

Turn Signals and Headlights AUTO The automatic lighting feature turns on the headlights, all other exterior lights, and the instrument panel lights when it senses low ambient light. To turn on automatic lighting, turn the light switch to AUTO. The lights will come on automatically when the outside light level becomes low (at dusk, for example). The lights on indicator comes on as a reminder. The lights and indicator will turn off automatically when the system senses high ambient light. The lights will remain on when you turn off the ignition switch. They will turn off automatically when you open and close the driver's door. To turn them on again, either turn the ignition switch to the ON (II) position or turn the light switch to the position. Even with the automatic lighting feature turned on, we recommend that you turn on the lights manually when driving at night or in a dense fog, or when you enter dark areas such as long tunnels or parking facilities. To change the ''AUTO LIGHT SENSITIVITY'' setting, see page 120 . Do not leave the light switch in AUTO if you will not be driving the vehicle for an extended period (a week or more). You should also turn off the lights if you plan to leave the engine idling or off for a long time. The automatic lighting feature is controlled by a sensor located on top of the dashboard. Do not cover this sensor or spill liquids on it. LIGHT SENSOR Instruments and Controls 141