Rear de-mist

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Rear De-Mist

Courtesy of VOLVO CARS OF NORTH AMERICA.

There are heating loops in the glass for de-misting and to prevent ice from forming. The loops heat up when they are supplied with power. The power supply is via a directly connected relay in the rear electronic module (REM).

Rear de-mist is controlled using a switch on the right-hand side of the climate control module (CCM).

The engine must be running for the demister to work. Press the button again to switch off the function. De-misting is switched off automatically after the maximum time of 12 minutes.

There are diagnostics for the switch via the climate control module (CCM).