If your vehicle has a rear window washer/wiper, the control knob is located on the instrument panel to the left of the steering wheel.
Caution: In freezing weather, do not use your washer until the windshield is warmed. Otherwise the washer fluid can form ice on the windshield, blocking your vision.
To turn the rear wiper on, turn the knob to either 1 or 2. For long delayed wiping, turn the knob to 1. For short delayed wiping, turn the knob to 2.
(Off): To turn the wiper off, turn the knob to this symbol.