2009 Lexus LX 570 Owners Manual - Page 510

3-8. Other interior features Cool box (if equipped) While the engine is running, the cool box, which is cooled by the air conditioning, can be used. STEP 1 Lift the lever to open. STEP 2 On/off When on, the indicator light comes on. If the front air conditioning system is not in use, the front air conditioning system is automatically turned on when the cool box is turned on. n While the cool box is on The front air conditioning system cannot be turned off. n When the outside temperature is 32°F (0°C) or below The cool box may not operate. 514