The ignition key must be in the On position.
Under the action of heat generated by thin wires of a thermoelement mounted on the inner surface, the glass is rapidly cleared. At inclusion of an electric heater of back glass the control lamp on the panel of devices lights up.
Switching off the electric heater of the rear window is ensured by pressing the button again. Turn off the electric heater immediately after clearing the glass, turning on the heater for a long time will drain the battery, especially on short trips. The heater is not intended for drying glass when it rains, or for melting snow.
Attention! Turn on the heater only when the engine is running.
When wiping the rear window, do not damage the thermocouple.