Engine Running Load Shed

When the BCM and/or PCM voltage is low, with the engine running, the BCM sends a message to either minimize or shut down the climate controlled seats, rear defrost, heated mirrors and climate control blower motor to improve system voltage. Under this condition, the IPC message center displays LOW BATTERY FEATURES TEMPORARILY TURNED OFF to notify the driver that battery protection actions are active during a Load Shed 2 continuous event.

There are 3 states of engine running load shed:

Load Shed State	Entry Conditions	Impact to Features	Clear Conditions
Load shed 1	Alternator at full load and battery discharging while driving. System voltage less than 11.5 volts	Incrementally reduce loads If equipped: Heated Steering Wheel, Smart Trailer Tow Battery Charge will turn Off, Climate controlled seats, Heated Mirrors and Heated Backglass will turn Off, Heated Windscreen will turn Off	System operating at normal power level.
Load shed 2 transient	EPAS indicating reduced voltage and increased current. System voltage less than 11 volts	Turn Off Loads without customer indication. If equipped, Heated Steering Wheel, Smart Trailer Tow Battery Charge, Climate controlled seats, Heated Mirrors and Heated Backglass, Heated Windscreen	System operating at normal power level.
Load shed 2 continuous	Load Shed 2 Transient condition in excess of 20 seconds	In addition to Load Shed 2 Transient turn off If equipped, 110 Volt Inverter, Heated Windscreen, Climate Control Blower (reduced speed less FMVSS required operation). During Load Shed 2 Continuous feature on indication will turn off for Heated Steering Wheel, Climate Controlled Seats, Heated Mirrors and Heated Backglass.	System operating at normal power level.