Dodge 2012 Ram - Manual (Page 172)

Intermittent Wiper System
The intermittent feature of this system was designed for
use when weather conditions make a single wiping cycle,
with a variable pause between cycles, desirable. For
maximum delay between cycles, rotate the control knob
into the upper end of the delay range.
The delay interval decreases as you rotate the knob until
it enters the low continual speed position. The delay can
be regulated from a maximum of about 18 seconds
between cycles, to a cycle every one second. The delay
intervals will double in duration when the vehicle speed
is 10 mph (16 km/h) or less.
Windshield Washers
To use the windshield washer, push the washer knob,
located on the end of the multifunction lever, inward to
the second detent. Washer fluid will be sprayed and the
wiper will operate for two to three cycles after the washer
knob is released from this position. If the washer knob is
depressed while in the delay range, the wiper will operate
for several seconds after the washer knob is released. It
will then resume the intermittent interval previously
selected. If the washer knob is pushed while in the off
position, the wiper will turn on and cycle approximately
three times after the wash knob is released.
To prevent freeze-up of your windshield washer system
in cold weather, select a solution or mixture that meets or
exceeds the temperature range of your climate. This
rating information can be found on most washer fluid
containers.
WARNING!
Sudden loss of visibility through the windshield
could lead to a collision. You might not see other
vehicles or other obstacles. To avoid sudden icing of
the windshield during freezing weather, warm the
windshield with the defroster before and during
windshield washer use.
170 UNDERSTANDING THE FEATURES OF YOUR VEHICLE