2009 Chrysler Town & Country Owner Manual - Page 330

328 UNDERSTANDING YOUR INSTRUMENT PANEL NOTE: In many temperature positions, the BI-LEVEL Winter Operation mode is designed to provide cooler air out of the head- To ensure the best possible heater and defroster performance, make sure the engine cooling system is functionliner outlets and warmer air from the floor outlets. ing properly and the proper amount, type, and concenFloor Mode tration of coolant is used. Refer to "Maintenance Air comes from the floor outlets. Procedures" in section 7 of this manual for proper coolant selection. Use of the air RECIRCULATION mode during Summer Operation Winter months is not recommended, because it may The engine cooling system in air conditioned vehicles cause window fogging. must be protected with a high-quality antifreeze coolant Vacation/Storage to provide proper corrosion protection and to protect Before you store your vehicle, or keep it out of service against engine overheating. A solution of 50% ethylene (i.e., vacation) for two weeks or more, run the air glycol antifreeze coolant and 50% water is recommended. conditioning system at idle for about five minutes, in Refer to "Maintenance Procedures" in Section 7 of this fresh air with the blower setting on high. This will ensure manual for proper coolant selection. adequate system lubrication to minimize the possibility of compressor damage when the system is started again.