When E-Heat is on, an electric heater warms the cabin and keeps the windows from fogging. Turning E-Heat off saves battery power, which extends your driving range. The electric heater is the only source of heat to warm the cabin.
Air Vents - Single Man Mode  Press the button to access the climate controls.E-Heat  Press the button to switch the electric heater on or off.
Note:   The default setting is on.
Note:   Disabling the system helps maximize your driving range.
Note:   The system does not work in some climate control modes.
Note:   This button does not switch off the climate control system.
Note:   In certain conditions, for example warm weather, the system could not activate or could run with reduced performance when switched on.