2008 Chevrolet HHR Owner's Manual - Page 143

Rear Window Wiper/Washer The rear window washer/wiper button is located on the instrument panel below the climate controls. 5 (Delay): Press this side of the button to turn on the intermittent wiping setting that has a longer delay. Press this button to wash and wipe the window. The rear window washer uses the same fluid bottle as the windshield washer. However, the rear window washer will run out of fluid before the windshield washer. If you can wash your windshield but not your rear windows, check the fluid level. Y (Washer Fluid): Z (Rear Wiper): {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. Press this side of the button to turn on an intermittent setting that has a shorter delay. To turn either of the intermittent wiper settings off, press the opposite side of the button to turn it to the off position. Pressing the button all the way down on either side will activate an intermittent wiper setting. 3-11