The rear wiper/washer controls are on the end of the windshield wiper lever.
ON : Press the upper portion of the button for continuous rear window wipes.
OFF : The rear wiper turns off when the button is returned to the middle position.
INT : Press the lower portion of the button for rear intermittent wipes.
REAR : Push the windshield wiper lever forward to spray washer fluid on the rear window. The lever returns to its starting position when released.
Rear Wiper Arm Assembly Protection
When using an automatic car wash, move the rear wiper control to OFF to disable the rear wiper. In some vehicles, if the transmission is in N (Neutral) and the vehicle speed is very slow, the rear wiper will automatically park under the rear spoiler.
The wiper operations return to normal when the transmission is no longer in N (Neutral) or the vehicle speed has increased.
Reverse Gear Wipes
If the rear wiper control is off, the rear wiper will automatically operate continuously when the shift lever is in R (Reverse), and the front windshield wiper is performing low or high speed wipes. If the rear wiper control is off, the shift lever is in R (Reverse), and the front windshield wiper is performing interval wipes, then the rear wiper automatically performs interval wipes.
This feature can be changed. See Vehicle Personalization
The windshield washer reservoir is used for the windshield and the rear window. Check the fluid level in the reservoir if either washer is not working. See Washer Fluid