2010 Chrysler Town & Country Owner Manual - Page 321

320 UNDERSTANDING YOUR INSTRUMENT PANEL When rear controls are locked by the front system, the NOTE: In many temperature positions, the BI-LEVEL LOCK symbol on the temperature knob is illuminated mode is designed to provide cooler air out of the headliner outlets and warmer air from the floor outlets. and any rear overhead adjustments are ignored. Rear Mode Control Floor Mode Air comes from the floor outlets. Auto Mode The rear system automatically maintains the correct mode and comfort level desired by the rear seat occu- Summer Operation The engine cooling system in air conditioned vehicles pants. must be protected with a high-quality antifreeze coolant Headliner Mode to provide proper corrosion protection and to protect Air comes from the outlets in the headliner. Each of against engine overheating. A solution of 50% ethylene these outlets can be individually adjusted to direct glycol antifreeze coolant and 50% water is recommended. the flow of air. Moving the air vanes of the outlets to one Refer to "Maintenance Procedures" in "Maintaining Your side will shut off the airflow. Vehicle" for proper coolant selection. Bi-Level Mode Air comes from both the headliner outlets and the floor outlets.