2018 JEEP GRAND CHEROKEE Owner handbook (in English)

Checking Oil Level — Gasoline Engine
To assure proper lubrication of your vehicle’s
engine, the engine oil must be maintained at
the correct level. Check the oil level at regular
intervals, such as every fuel stop. The best
time to check the engine oil level is about five
minutes after a fully warmed up engine is
shut off.
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil
level readings. Always maintain the oil level
within the SAFE zone on the dipstick. Adding
one quart of oil when the reading is at the
bottom of the SAFE zone will result in a
reading at the top of the safe zone on these
engines.
CAUTION!
Overfilling or underfilling the crankcase
will cause aeration or loss of oil pressure.
This could damage your engine.
Checking Oil Level — 3.0 Diesel Engine
To assure proper lubrication of your vehicle's
engine, the engine oil must be maintained at
the correct level. Check the oil level at regular
intervals. The best time to check the oil level
is before starting the engine after it has been
parked overnight. When checking oil after
operating the engine, first ensure the engine
is at full operating temperature, then wait for
five minutes after engine shutdown to check
the oil.
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil
level readings. Add oil only when the level on
the dipstick is below the “MIN” mark. The
total capacity from the MIN mark to the MAX
mark is 1 qt (1 L).
CAUTION!
Overfilling or underfilling the crankcase
will cause oil aeration or loss of oil pres-
sure. This could damage your engine.NOTE:
It is possible for your oil level to be slightly
higher than a previous check. This would be
due to diesel fuel that may temporarily be in
the crankcase due to operation of the diesel
particulate filter regeneration strategy. This
fuel will evaporate out under normal opera-
tion.
Never operate the engine with oil level below
the “MIN” mark or above the upper “MAX”
mark.
Adding Washer Fluid
The instrument cluster display will indicate
when the washer fluid level is low. When the
sensor detects a low fluid level, the wind-
shield 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 com-
partment, be sure to check the fluid level at
regular intervals. Fill the reservoir with wind-
shield washer solvent only (not radiator anti-
freeze). When refilling the washer fluid reser-
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voir, 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 tempera-
ture range of your climate. This rating infor-
mation 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.
Maintenance-Free Battery
Your vehicle is equipped with a maintenance-
free battery. You will never have to add water,
nor is periodic maintenance required.
WARNING!
• Battery fluid is a corrosive acid solution
and can burn or even blind you. Do not
WARNING!
allow battery fluid to contact your eyes,
skin, or clothing. Do not lean over a
battery when attaching clamps. If acid
splashes in eyes or on skin, flush the
area immediately with large amounts of
water. Refer to “Jump Starting Proce-
dure” in “In Case Of Emergency” for
further information.
• Battery gas is flammable and explosive.
Keep flame or sparks away from the
battery. Do not use a booster battery or
any other booster source with an output
greater than 12 Volts. Do not allow cable
clamps to touch each other.
• Battery posts, terminals, and related ac-
cessories contain lead and lead com-
pounds. Wash hands after handling.
CAUTION!
• It is essential when replacing the cables
on the battery that the positive cable is
attached to the positive post and the
negative cable is attached to the nega-
tive post. Battery posts are marked posi-
CAUTION!
tive (+) and negative (-) and are identi-
fied on the battery case. Cable clamps
should be tight on the terminal posts
and free of corrosion.
• If a “fast charger” is used while the
battery is in the vehicle, disconnect both
vehicle battery cables before connecting
the charger to the battery. Do not use a
“fast charger” to provide starting volt-
age.
DEALER SERVICE
An authorized dealer has the qualified ser-
vice personnel, special tools, and equipment
to perform all service operations in an expert
manner. Service Manuals are available which
include detailed service information for your
vehicle. Refer to these Service Manuals be-
fore attempting any procedure yourself.
NOTE:
Intentional tampering with emissions control
systems may void your warranty and could
result in civil penalties being assessed
against you.
SERVICING AND MAINTENANCE
248

WARNING!
You can be badly injured working on or
around a motor vehicle. Only do service
work for which you have the knowledge
and the proper equipment. If you have any
doubt about your ability to perform a ser-
vice job, take your vehicle to a competent
mechanic.
Air Conditioner Maintenance
For best possible performance, your air con-
ditioner should be checked and serviced by
an authorized dealer at the start of each warm
season. This service should include cleaning
of the condenser fins and a performance test.
Drive belt tension should also be checked at
this time.
WARNING!
• Use only refrigerants and compressor
lubricants approved by the manufac-
turer for your air conditioning system.
Some unapproved refrigerants are flam-
WARNING!
mable and can explode, injuring you.
Other unapproved refrigerants or lubri-
cants can cause the system to fail, re-
quiring costly repairs. Refer to Warranty
Information Book, for further warranty
information.
• The air conditioning system contains re-
frigerant under high pressure. To avoid
risk of personal injury or damage to the
system, adding refrigerant or any repair
requiring lines to be disconnected
should be done by an experienced tech-
nician.
CAUTION!
Do not use chemical flushes in your air
conditioning system as the chemicals can
damage your air conditioning components.
Such damage is not covered by the New
Vehicle Limited Warranty.
Air Conditioning Filter Replacement (A/C Air
Filter)
Refer to “Scheduled Servicing” in this sec-
tion for the proper maintenance intervals.
WARNING!
Do not remove the cabin air filter while the
vehicle is running, or while the ignition is
in the ACC or ON/RUN mode. With the
cabin air filter removed and the blower
operating, the blower can contact hands
and may propel dirt and debris into your
eyes, resulting in personal injury.
The A/C air filter is located in the fresh air
inlet behind the glove compartment. Perform
the following procedure to replace the filter:
1. Open the glove compartment and remove
all contents.
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2. There are glove compartment travel stops
on both sides of the glove compartment
door, partially close the glove compart-
ment door and push inward to release the
glove compartment travel stop on one side
and repeat this procedure for the opposite
side.3. Pull the right hand side of the glove com-
partment door toward the rear of the ve-
hicle to disengage the glove compartment
door from its hinges.
NOTE:
When disengaging the glove compartment
door from its hinges, there will be some
resistance.
4. With the glove compartment door loose,
remove the glove compartment tension
tether and tether clip by sliding the clip
toward the face of the glove compartment
door and lifting the clip out of glove com-
partment door.
5. Remove the filter cover by disengaging
the retaining tab and mid way snap that
secures the filter cover to the HVAC hous-
ing. Disengage the mid way snap by pull-
ing the door outward. Unhinge the filter
cover on the right side to fully remove the
cover.6. Remove the A/C air filter by pulling it
straight out of the housing.
7. Install the A/C air filter with the arrow on
the filter pointing toward the floor. When
installing the filter cover, make sure the
retaining tabs fully engage the cover.
Glove Compartment
1 — Glove Compartment Travel Stops
2 — Glove Compartment Tension Tether
3 — Glove Compartment Door
A/C Air Filter Cover
1 — Retaining Tab
2 — Mid Way Snap
3 — Filter Cover HingeSERVICING AND MAINTENANCE
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CAUTION!
The cabin air filter is identified with an
arrow to indicate airflow direction through
the filter. Failure to properly install the
filter will result in the need to replace it
more often.
8. Reinstall the glove compartment door on
the door hinge and reattach the tension
tether by inserting the tether clip in the
glove compartment and sliding the clip
away from the face of the glove compart-
ment door.
9. Push the door to the near closed position
to reengage the glove compartment travel
stops.
NOTE:
Ensure the glove compartment door
hinges and glove compartment travel
stops are fully engaged.
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 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 remove frost
or ice from the windshield. Keep the blade
rubber out of contact with petroleum prod-
ucts such as engine oil, gasoline, etc.
NOTE:
Life expectancy of wiper blades varies de-
pending on geographical area and frequency
of use. Poor performance of blades may be
present with chattering, marks, water lines or
wet spots. If any of these conditions are
present, clean the wiper blades or replace as
necessary.The wiper blades and wiper arms should be
inspected periodically, not just when wiper
performance problems are experienced. This
inspection should include the following
points:
• Wear Or Uneven Edges
• Foreign Material
• Hardening Or Cracking
• Deformation Or Fatigue
If a wiper blade or wiper arm is damaged,
replace the affected wiper arm or blade with a
new unit. Do not attempt to repair a wiper
arm or blade that is damaged.
Front Wiper Blade Removal/Installation
CAUTION!
Do not allow the wiper arm to spring back
against the glass without the wiper blade
in place or the glass may be damaged.
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1. Lift the wiper arm to raise the wiper blade
off of the glass, until the wiper arm is in
the full up position.2. To disengage the wiper blade from the
wiper arm, flip up the release tab on the
wiper blade and while holding the wiper
arm with one hand, slide the wiper blade
down towards the base of the wiper arm.3. With the wiper blade disengaged, remove
the wiper blade from the wiper arm by
holding the wiper arm with one hand and
separating the wiper blade from the wiper
arm with the other hand (move the wiper
blade toward the right side of the vehicle
to separate the wiper blade from the wiper
arm).
Wiper Blade With Release Tab In Locked
Position
1 — Wiper
2 — Release Tab
3 — Wiper ArmWiper Blade With Release Tab In
Unlocked Position
1 — Wiper Blade
2 — Release Tab
3 — Wiper ArmWiper Blade Removed From Wiper Arm
1 — Wiper Blade
2 — Release Tab
3 — Wiper Arm
SERVICING AND MAINTENANCE
252

4. Gently lower the wiper arm onto the glass.
Installing The Front Wipers
1. Lift the wiper arm off of the glass, until
the wiper arm is in the full up position.
2. Position the wiper blade near the hook on
the tip of the wiper arm with the wiper
release tab open and the blade side of the
wiper facing up and away from the
windshield.
3. Insert the hook on the tip of the arm
through the opening in the wiper blade
under the release tab.
4. Slide the wiper blade up into the hook on
the wiper arm and rotate the wiper blade
until it is flush against the wiper arm. Fold
down the latch release tab and snap it into
its locked position. Latch engagement will
be accompanied by an audible click.
5. Gently lower the wiper blade onto the
glass.
Rear Wiper Blade Removal/Installation
1. Lift the rear wiper arm pivot cap away
from the glass to allow the rear wiper
blade to be raised off of the glass.NOTE:
The rear wiper arm cannot be fully raised
off the glass unless the wiper arm pivot
cap is unsnapped first. Attempting to fully
raise the rear wiper arm without unsnap-
ping the wiper arm pivot cap may damage
the vehicle.2. Lift the rear wiper arm fully off the glass.
Rear Wiper
1 — Wiper Arm Pivot Cap
2 — Wiper Arm
3 — Wiper Blade
Wiper Blade In Folded Out Position
1 — Wiper Arm Pivot Cap
2 — Wiper Arm
3 — Wiper Blade
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3. To remove the wiper blade from the wiper
arm, grasp the bottom end of the wiper
blade nearest to wiper arm with your right
hand. With your left hand hold the wiper
arm as you pull the wiper blade away from
the wiper arm past its stop far enough to
unsnap the wiper blade pivot pin from the
receptacle on the end of the wiper arm.
NOTE:
Resistance will be accompanied by an
audible snap.
4. Still grasping the bottom end of the wiper
blade, move the wiper blade upward and
away from the wiper arm to disengage.
5. Gently lower the tip of the wiper arm onto
the glass.
Installing The Rear Wiper
1. Lift the rear wiper arm pivot cap away
from the glass to allow the rear wiper
blade to be raised off of the glass.NOTE:
The rear wiper arm cannot be fully raised
off the glass unless the wiper arm pivot
cap is unsnapped first. Attempting to fully
raise the rear wiper arm without unsnap-
ping the wiper arm pivot cap may damage
the vehicle.
2. Lift the rear wiper arm fully off the glass.
3. Insert the wiper blade pivot pin into the
opening on the end of the wiper arm. Grab
the bottom end of the wiper arm with one
hand, and press the wiper blade flush with
the wiper arm until it snaps into place.
4. Lower the wiper blade onto the glass and
snap the wiper arm pivot cap back into
place.
Cooling System
WARNING!
• You or others can be badly burned by hot
engine coolant (antifreeze) or steam
from your radiator. If you see or hear
steam coming from under the hood, do
not open the hood until the radiator has
Wiper Blade Removed From Wiper Arm
1 — Wiper Arm
2 — Wiper BladeSERVICING AND MAINTENANCE
254