2009 Nissan Altima Owner's Manual - Page 110

CAUTION Even though the battery saver feature automatically turns off the headlights after a period of time, you should turn the headlight switch to the OFF position when the engine is not running to avoid discharging the vehicle battery. WARNING When the daytime running light system is active, tail lights on your vehicle are not on. It is necessary at dusk to turn on your headlights. Failure to do so could cause an accident injuring yourself and others. DAYTIME RUNNING LIGHT SYSTEM (Canada only) The headlights automatically illuminate at a reduced intensity when the engine is started with the parking brake released. The daytime running lights operate with the headlight switch in the OFF position or in the position. Turn the headlight switch to the position for full illumination when driving at night. If the parking brake is applied before the engine is started, the daytime running lights do not illuminate. The daytime running lights illuminate when the parking brake is released. The daytime running lights will remain on until the ignition switch is placed in the OFF position. LIC1066 INSTRUMENT BRIGHTNESS CONTROL The instrument cluster illuminates when the ignition switch is placed in the ON position. The instrument brightness control operates when the headlight control switch is in the AUTO, or position. Turn the control left or right to adjust the brightness of the instrument panel lights when driving at night. 2-32 Instruments and controls