1999 Lexus LX 470 Owners Manual - Page 96

(k) Low Fuel Level Warning Light This light comes on when the fuel level in the tank becomes nearly empty. Fill the tank as soon as possible. On inclines or curves, due to the movement of fuel in the tank, the low fuel level warning light may come on earlier than usual. (l) Low Washer Fluid Warning Light This light comes on when the fluid level in the tank becomes nearly empty. Fill the tank as soon as possible. (m) Key Reminder Buzzer This buzzer reminds you to remove the key when you open the driver's door with the ignition key in the "ACC" or "LOCK" position.