2010 JEEP GRAND CHEROKEE wiper blades

Windshield Wiper Operation
Rotate the end of the lever upward to the LO position for
low-speed wiper operation.
Rotate the end of the lever upward to the HI position for
high-speed 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 five intermittent wiper speeds when
weather conditions make a single wiping cycle, with a
variable pause between cycles, desirable. Turn the end of
the lever to one of the five delay positions for the desired
delay interval. The delay can be regulated from a maxi-
mum of approximately 18 seconds between cycles, to a
cycle every 1/2 second.
Front Wiper Control
110 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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).
•Transmission in NEUTRAL Position — When the
ignition is ON, and the transmission is in the NEU-
TRAL position, the Rain Sensing system will not
operate until the wiper switch is moved, vehicle speed
is greater than 5 mph (8 km/h), or the shift lever is
moved out of the NEUTRAL position.
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 113

MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment – 3.7L .............. 363
 Engine Compartment – 5.7L .............. 364
 Onboard Diagnostic System – OBD II ....... 365
▫ Loose Fuel Filler Cap Message ........... 365
 Emissions Inspection And Maintenance
Programs ............................ 366
 Replacement Parts ..................... 368
 Dealer Service ........................ 368
 Maintenance Procedures ................. 368
▫ Engine Oil ......................... 369 ▫
Engine Oil Filter ..................... 372
▫ Engine Air Cleaner Filter ............... 372
▫ Maintenance-Free Battery .............. 373
▫ Air Conditioner Maintenance ............ 374
▫ Body Lubrication .................... 375
▫ Windshield Wiper Blades ............... 376
▫ Adding Washer Fluid ................. 376
▫ Exhaust System ..................... 377
▫ Cooling System ..................... 380
7

hood latching components to ensure proper function.
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 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.
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.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
376 MAINTAINING YOUR VEHICLE

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.
WARNING!
Commercially available windshield washer solvents
are flammable. They could ignite and burn you. Care
must be exercised when filling or working around
the washer solution.
Exhaust System
The best protection against carbon monoxide entry into
the vehicle body is a properly maintained engine exhaust
system.
If you notice a change in the sound of the exhaust system;
or if the exhaust fumes can be detected inside the vehicle;
or when the underside or rear of the vehicle is damaged;
have an authorized technician inspect the complete ex-
haust system and adjacent body areas for broken, dam-
aged, deteriorated, or mispositioned parts. Open seams
or loose connections could permit exhaust fumes to seep
into the passenger compartment. In addition, inspect the
exhaust system each time the vehicle is raised for lubri-
cation or oil change. Replace as required.
7
MAINTAINING YOUR VEHICLE 377

uconnect™ (Hands-Free Phone).............. 84
Underhood Fuses ..................... 401,404
Uniform Tire Quality Grades ................ 443
Universal Consumer Interface (UCI) Connector . . . 209
Universal Transmitter ..................... 128
Upholstery Care ........................ 396
Vanity Mirrors ........................... 84
Variance, Compass ....................... 177
Vehicle Certification Label ................. 322
Vehicle Identification Number (VIN) ............ 8
Vehicle Loading ...................... 292,322
Vehicle Modifications/Alterations .............. 9
Vehicle Storage ....................... 232,406
Viscosity, Engine Oil ...................... 371
Voice Recognition System (VR) ............... 84
Warning Flasher, Hazard .................. 346
Warning, Roll Over ........................ 5 Warnings and Cautions
..................... 8
Warranty Information ..................... 440
Washers, Windshield .................. 109,376
Washing Vehicle ......................... 393
Waxing and Polishing ..................... 393
Wheel and Wheel Trim .................... 395
Wheel and Wheel Trim Care ................ 395
Wheel Mounting ........................ 354
Wind Buffeting ....................... 33,137
Window Fogging ........................ 231
Windows .............................. 30
Power ............................... 30
Windshield Defroster ................74,223,229
Windshield Washers ...................... 109
Fluid ............................... 376
Windshield Wiper Blades .................. 376
Windshield Wipers ....................... 109
Wipers, Intermittent ...................... 110
Wipers, Rain Sensitive .................... 112
464 INDEX