2012 JEEP GRAND CHEROKEE wiper blades

Windshield Wiper Operation
Rotate the end of the lever to one of the first four detent
positions for intermittent settings, the fifth detent for low
wiper operation and the sixth detent for high wiper
operation.CAUTION!
Always remove any buildup of snow that prevents
the windshield wiper blades from returning to the
“park” position. If the windshield wiper switch is
turned off, and the blades cannot return to the “park”
position, damage to the wiper motor may occur.
Intermittent Wiper System
Use one of the four intermittent wiper settings when
weather conditions make a single wiping cycle, with a
variable delay between cycles, desirable. At driving
speeds above 10 mph (16 km/h), the delay can be
regulated from a maximum of approximately 18 seconds
between cycles (first detent), to a cycle every one second
(fourth detent).
Windshield Wiper Operation
190 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

from the windshield washers of the vehicle ahead. Rotate
the end of the multifunction lever to one of four 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 4 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 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 Sensing performance.
•A customer programmable feature in the Electronic
Vehicle Information Center (EVIC) allows the Rain
Sensing feature to be turned off. Refer to “Electronic
Vehicle Information Center (EVIC)/Personal Settings
(Customer-Programmable Features)” in “Understand-
ing Your Instrument Panel” for further information.
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
operate until the wiper switch is moved, vehicle speed
is greater than 0 mph (0 km/h), or the outside tem-
perature is greater than 32°F (0°C).
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 193

MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment — 6.4L............. 471
Onboard Diagnostic System – OBD II....... 472
▫Loose Fuel Filler Cap Message........... 472
Emissions Inspection And Maintenance
Programs............................ 473
Replacement Parts..................... 474
Dealer Service........................ 474
Maintenance Procedures................. 475
▫Engine Oil......................... 476▫Engine Oil Filter..................... 479
▫Engine Air Cleaner Filter............... 479
▫Maintenance-Free Battery.............. 480
▫Air Conditioner Maintenance............ 481
▫Body Lubrication.................... 482
▫Windshield Wiper Blades............... 483
▫Adding Washer Fluid................. 485
▫Exhaust System..................... 486
▫Cooling System..................... 489
7

When performing other underhood services, the hood
latch, release mechanism and safety catch should be
cleaned and lubricated.
The external lock cylinders should be lubricated twice a
year, preferably in the Fall and Spring. Apply a small
amount of a high quality lubricant, such as MOPAR
Lock Cylinder Lubricant or equivalent directly into the
lock cylinder.
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. This will remove accumula-
tions 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 remove frost or ice from
the windshield. Keep the blade rubber out of contact with
petroleum products such as engine oil, gasoline, etc.
NOTE:Life expectancy of wiper blades varies depend-
ing on geographical area and frequency of use. Poor
performance of blades may be present with chattering,
marks, water lines or wet spots. If any condition is
present please proceed to clean wiper blades with humid
cloth removing any debris that may be affecting its
function.
7
MAINTAINING YOUR VEHICLE 483

4. Install the wiper blade pivot pin into the wiper blade
holder at the end of the wiper arm, and firmly press the
wiper blade until it snaps into place.5. Lower the wiper blade and snap the pivot cap into
place.
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. Refer
to “Electronic Vehicle Information Center” in “Under-
standing Your Instrument Panel” for further information.
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.
1 — Wiper Blade
2 — Blade Pivot Pin
3 — Wiper Arm
4 — Wiper Blade Holder
7
MAINTAINING YOUR VEHICLE 485

Washers, Windshield..................189,485
Washing Vehicle......................... 500
Water
Driving Through..................... 394
WaxingandPolishing ..................... 500
Wheel and Wheel Trim.................... 502
Wheel and Wheel Trim Care................ 502
Wind Buffeting..................... 43,253,257
Window Fogging........................ 367
Windows.............................. 40Power............................. 40
Windshield Defroster...................... 97
Windshield Washers...................... 189
Fluid ............................. 485
Windshield Wiper Blades.................. 483
Windshield Wipers....................... 189
Wiper Blade Replacement.................. 483
Wipers, Intermittent...................... 190
Wipers, Rain Sensitive.................... 192
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INDEX 565