Windshield Wiper/Washer

The windshield wiper/washer lever is located on the steering column. When the ignition is on or in ACC/ACCESSORY, move the wiper lever to select the wiper speed.
HI : Use for fast wiping.
LO : Use for slow wiping.

INT : Move the lever up to the INT position for intermittent wiper operation, then turn the collar up for more frequent wiping or down for less frequent wiping.
OFF : Use to turn the wipers off.
1X : For a single wipe, briefly move the wiper lever down. For multiple wipes, hold the wiper lever in the down position.
: Pull the wiper lever toward you to spray washer fluid on the windshield and turn on the wipers.
Rear Window Wiper/Washer

Turn the end of the rear wiper lever to operate the rear window wiper.
OFF : Turns the system off.
INT : Intermittent wiping.
ON : Slow wiping.
: Push the wiper lever forward to spray washer fluid on the rear window. The lever automatically returns to its original position when released.
See Windshield Wiper/Washer and Rear Window Wiper/Washer.
Test yourself
A quick GMC Terrain quiz: every answer comes with an explanation and a link to the manual page.