On page 56 (Instruments and Controls) of the 2012 Volt owners manual I found two new features that state Engine Assisted Heating and Engine Assisted Heating (Plugged‐In).
For the Engine Assisted Heating it states,
"If equipped, this feature selects
the outside temperature level at
which the engine may run to assist
heating in Electric Mode. A change
in selection will not take affect
until after the vehicle is first
From what I get from this you can control the threshold of when you want the ICE to turn on to warm the engine coolant which will then help to assist heating of the cabin. Can someone correct me if I am wrong?
For the Engine Assisted Heating (Plugged‐In) option it states,
"If equipped, this feature will enable
or disable Engine Assisted Heating
whenever the vehicle is plugged in.
A change in setting will not take
affect until after the vehicle is first
What is the point of this feature as when the Volt is plugged in you can perform a remote start which will use the mains electrical power to precondition the cabin so there is no need for the ICE to activate?
From my understanding both of these options state "If equipped". Are these features only offered on fully loaded Volts? I hope someone can clear these points up for me.