2013 Volvo XC70 Owner's Manual - Page 104

03 Your driving environment Wipers and washers wiper will go into intermittent wiping function1. This function is deactivated when a different gear is selected. NOTE 03 On vehicles with the optional rain sensor, the tailgate wiper will be activated when reverse is selected, if the rain sensor is activated and it is raining. Move the lever forward to start the tailgate washer. Intermittent wiping Normal (continuous) wiping If the tailgate wiper is in the normal (continuous) wiping mode, selecting different gears will not affect its function. NOTE The rear wiper is equipped with cut-off function, which means that it will not operate if its electric motor overheats. The wiper will function again after a cool-down period (30 seconds or longer, depending on the heat of the motor and ambient temperature conditions). Tailgate wiper and reverse gear If the windshield wipers are on and the transmission is put into reverse gear, the tailgate 1 Consult your Volvo retailer if you would like to have this function deactivated. 102