2014 Dodge Grand Caravan Passenger Owner Manual - Page 445

UNDERSTANDING YOUR INSTRUMENT PANEL 443 • Bi-Level Mode Winter Operation Air comes from both the headliner outlets and the To ensure the best possible heater and defroster performance, make sure the engine cooling system is functionfloor outlets. ing properly and the proper amount, type, and concenNOTE: In many temperature positions, the Bi-Level tration of coolant is used. Refer to "Maintenance mode is designed to provide cooler air out of the head- Procedures" in "Maintaining Your Vehicle" for proper liner outlets and warmer air from the floor outlets. coolant selection. Use of the air Recirculation mode during Winter months is not recommended, because it • Floor Mode may cause window fogging. Air comes from the floor outlets. Vacation/Storage Summer Operation Before you store your vehicle, or keep it out of service The engine cooling system must be protected with a (i.e., vacation) for two weeks or more, run the air high-quality antifreeze coolant to provide proper corroconditioning system at idle for about five minutes, in sion protection and to protect against engine overheating. fresh air with the blower setting on high. This will ensure OAT coolant (conforming to MS-12106) is recommended. adequate system lubrication to minimize the possibility Refer to "Maintenance Procedures" in "Maintaining Your of compressor damage when the system is started again. Vehicle" for proper coolant selection. 4