Ford Escape: Supplemental Climate Control / Description and Operation - Supplemental Climate Control - Overview

Overview

The electric booster heater, if equipped, is used to heat the passenger compartment during low ambient temperatures when the heater core cannot provide sufficient heat due to low engine coolant temperatures. Once the engine coolant reaches a sufficient temperature to heat the passenger compartment, the climate control system stops using the electric booster heater.

The cabin heater coolant pump is available on vehicles equipped with the Auto Start - Stop feature only. The cabin heater coolant pump provides coolant to the heater core whenever the HVAC system requests heat and the vehicle is in auto start-stop mode. Refer to the Owner's Literature, Unique Driving Characteristics Auto-Start-Stop for full auto start-stop enabling/disabling information.