Rear window heating RR

The heated rear window is activated when the HRW button is pressed. Check-back is signalled by the function light in the button. The HRW function is deactivated when the HRW button is pressed again or after the heating period of 10 or 17 minutes has elapsed. The 5-minute afterheating phase is activated if the HRW button is pressed during timed operation.

Function

The HHS function is not dependent on the other IHKA button functions.

Defrosting phase: In order to achieve an optimum de-icing effect, the time period for the heated rear window is set as follows after terminal 15 ON (restart after sleep mode) during the first switch-on procedure:

• Outside temperature ≥ -15°C: heating time 10 minutes
  
• Outside temperature ≤ -15°C: heating time 17 minutes
  

The function LED is lit during the heating time.

Timing:After the de-icing phase, the heating is switched for 30 minutes at 1/4 heat output according to the following cycle:

ON for 3 seconds

OFF for 9 seconds

The function LED is deactivated during the timing.