2009 JEEP GRAND CHEROKEE wiper blades

WINDSHIELD WIPERS AND WASHERS
The front and rear wipers and washers are operated by a
switch in the right side control lever. Turn the end of the
control lever to select Low, High, or one of the five speed
sensitive intermittent windshield wiper speeds. Refer to
“Speed Sensitive Intermittent Wiper System” in this
section. For information on the rear wiper and washer,
refer to “Rear Window Features” in this section.
NOTE:Always remove any buildup of snow that pre-
vents the windshield wiper blades from returning to the
off position. If the windshield wiper switch is turned off,
and the blades cannot return to the off position, damage
to the wiper motor may occur.
Windshield Wiper/Washer Switch
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 139
3

Rain Sensing Wipers — If Equipped
This feature senses moisture on the windshield and
automatically activates the wipers for the driver. The
feature is especially useful for road splash or overspray
from the windshield washers of the vehicle ahead. Rotate
the end of the multifunction lever to one of five settings
to activate this feature.
The sensitivity of the system can be adjusted with the
multifunction lever. Wiper delay position 1 is the least
sensitive, and wiper delay position 5 is the most sensi-
tive. Setting 3 should be used for normal rain conditions.
Settings 1 and 2 can be used if the driver desires less
wiper sensitivity. Settings 4 and 5 can be used if the
driver desires more sensitivity. Place the wiper switch in
the OFF position when not using the system.
NOTE:
•The rain sensing feature will not operate when the
wiper switch is in the Low or High speed position.
•The rain sensing feature may not function properly
when ice, or dried salt water is present on the wind-
shield.
•Use of Rain-Xor products containing wax or silicone
may reduce rain sensor performance.
•A customer programmable feature in the Electronic
Vehicle Information Center (EVIC) allows the Rain
Sense feature to be turned off. Refer to “Electronic
Vehicle Information Center (EVIC) — Customer-
Programmable Features” in Section 4 of this manual.
The rain sensing system has protection features for the
wiper blades and arms, and will not operate under the
following conditions:
•Low Ambient Temperature— When the ignition is
first turned ON, the rain sensing system will not
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 141
3

MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment – 3.7L.............. 406
Engine Compartment – 4.7L.............. 407
Engine Compartment – 5.7L.............. 408
Engine Compartment – 3.0L Diesel......... 409
Onboard Diagnostic System — OBD II...... 410
▫Loose Fuel Filler Cap Message........... 410
Emissions Inspection And Maintenance
Programs............................ 411
Replacement Parts..................... 413Dealer Service........................ 413
Maintenance Procedures................. 413
▫Engine Oil......................... 414
▫Engine Air Cleaner Filter............... 417
▫Maintenance-Free Battery.............. 418
▫Air Conditioner Maintenance............ 419
▫Body Lubrication.................... 420
▫Windshield Wiper Blades............... 421
▫Adding Washer Fluid................. 421
7

Windshield Wiper Blades
Clean the rubber edges of the wiper blades and the
windshield periodically with a sponge or soft cloth and a
mild nonabrasive cleaner to remove accumulations of salt
or road film.
Operation of the wipers on dry glass for long periods
may cause deterioration of the wiper blades. Always use
washer fluid when using the wipers to remove salt or dirt
from a dry windshield.
Avoid using the wiper blades to wipe frost or ice from the
windshield. Keep the blade rubber out of contact with
petroleum products such as engine oil, gasoline, etc.
Adding Washer Fluid
On vehicles equipped with a Electronic Vehicle Informa-
tion Center (EVIC), the low washer fluid level will be
indicated. When the sensor detects a low fluid level, the
windshield will light on the vehicle graphic outline and
the “WASHER FLUID LOW” message will be displayed.The fluid reservoir for the windshield washers and the
rear window washer is shared. The fluid reservoir is
located in the engine compartment, be sure to check the
fluid level at regular intervals. Fill the reservoir with
windshield washer solvent only (not radiator antifreeze).
When refilling the washer fluid reservoir, take some
washer fluid and apply it to a cloth or towel and wipe
clean the wiper blades, this will help blade performance.
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.
MAINTAINING YOUR VEHICLE 421
7

Windshield Defroster................71,263,269
Windshield Washers...................... 139
Fluid............................... 421
Windshield Wiper Blades.................. 421Windshield Wipers....................... 139
Wipers, Intermittent...................... 140
Wipers, Rain Sensitive.................... 141
INDEX 517
10