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.
If your vehicle has a rear window washer/wiper, this knob is located on the instrument panel to the left of the steering wheel.
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.