To Operate Front Windshield Wipers:
to change Wiper modes
Up/Down to adjust Intermittent Wipe Speed to Fast/Slow 

To operate Auto Rear Wiper (in Reverse):


up increases Intermittent wipe frequency and wipe speed. Pressing the button down decreases the frequency of wipes Images are for illustrative purposes only. Your actual display, buttons and/or features may vary.
Refer to section 5 in the Owner’s Manual for more information.