2017 JEEP GRAND CHEROKEE Owners Manual

WARNING!(Continued)
damage to the system, adding refrigerant or any
repair requiring lines to be disconnected should be
done by an experienced technician.
CAUTION!
Do not use chemical flushes in your air conditioning
system as the chemicals can damage your air condition-
ing components. Such damage is not covered by the
New Vehicle Limited Warranty.
Refrigerant Recovery And Recycling R134a — If
Equipped
R-134a Air Conditioning Refrigerant is a hydrofluoro-
carbon (HFC) that is endorsed by the Environmental
Protection Agency and is an ozone-saving product. How-
ever, the manufacturer recommends that air conditioning
service be performed by authorized dealer or other service
facilities using recovery and recycling equipment.
NOTE:Use only manufacturer approved A/C system PAG
compressor oil and refrigerants.
Refrigerant Recovery And Recycling — R–1234yf
R–1234yf Air Conditioning Refrigerant is a hydrofluo-
roolefin (HFO) that is endorsed by the Environmental
Protection Agency and is an ozone-friendly substance with
a low global-warming potential. The manufacturer recom-
mends that air conditioning service be performed by
authorized dealer using recovery and recycling equipment.
NOTE: Use only manufacturer approved A/C system
PAG compressor oil, and refrigerants.
Air Conditioning Filter Replacement (A/C Air Filter)
Refer to “Scheduled Servicing” in this section 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.
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SERVICING AND MAINTENANCE 455

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.2. There are glove compartment travel stops on both sides
of the glove compartment door, partially close the glove
compartment 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 compartment door toward the rear of the vehicle 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 compart-
ment door and lifting the clip out of glove compartment
door.
Glove Compartment
1 — Glove Compartment Travel Stops
2 — Glove Compartment Tension Tether
3 — Glove Compartment Door 456 SERVICING AND MAINTENANCE

5. Remove the filter cover by disengaging the retaining taband mid way snap that secures the filter cover to the
HVAC housing. Disengage the mid way snap by pulling
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.
Right Side Of Glove Compartment
1 — Glove Compartment Tension Tether
2 — Glove Compartment Door
A/C Air Filter Cover
1 — Retaining Tab
2 — Mid Way Snap
3 — Filter Cover Hinge
8
SERVICING AND MAINTENANCE 457

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 glove compartment door hinge and reattach the glove com-
partment tension tether by inserting the tether clip in the
glove compartment and sliding the clip away from the
face of the glove compartment 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.
Accessory Drive Belt Inspection
WARNING!
• Do not attempt to inspect an accessory drive belt
with vehicle running.
(Continued)
WARNING! (Continued)
•When working near the radiator cooling fan, discon-
nect the fan motor lead. The fan is temperature
controlled and can start at any time regardless of
ignition mode. You could be injured by the moving
fan blades.
• 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
service job, take your vehicle to a competent me-
chanic.
When inspecting accessory drive belts, small cracks that
run across ribbed surface of belt from rib to rib, are
considered normal. These are not a reason to replace belt.
However, cracks running along a rib (not across) are not
normal. Any belt with cracks running along a rib must be
replaced. Also have the belt replaced if it has excessive
wear, frayed cords or severe glazing.
458 SERVICING AND MAINTENANCE

Conditions that would require replacement:
•Rib chunking (one or more ribs has separated from belt
body)
• Rib or belt wear
• Longitudinal belt cracking (cracks between two ribs)
• Belt slips
• “Groove jumping (belt does not maintain correct posi-
tion on pulley) •
Belt broken (note: identify and correct problem before
new belt is installed)
• Noise (objectionable squeal, squeak, or rumble is heard
or felt while drive belt is in operation)
Some conditions can be caused by a faulty component such
as a belt pulley. Belt pulleys should be carefully inspected
for damage and proper alignment.
Belt replacement on some models requires the use of
special tools, we recommend having your vehicle serviced
at an authorized dealer.
Body Lubrication
Locks and all body pivot points, including such items as
seat tracks, door hinge pivot points and rollers, liftgate,
tailgate, decklid, sliding doors and hood hinges, should be
lubricated periodically with a lithium based grease, such as
MOPAR Spray White Lube to assure quiet, easy operation
and to protect against rust and wear. Prior to the applica-
tion of any lubricant, the parts concerned should be wiped
clean to remove dust and grit; after lubricating excess oil
and grease should be removed. Particular attention should
also be given to hood latching components to ensure
Accessory Belt (Serpentine Belt)8
SERVICING AND MAINTENANCE 459

proper function. When performing other underhood ser-
vices, 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 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 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 products such as engine oil, gasoline, etc.NOTE:
Life expectancy of wiper blades varies depending
on geographical area and frequency of use. Poor perfor-
mance 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 follow-
ing 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.
460 SERVICING AND MAINTENANCE

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.
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, flipup 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.
Wiper Blade With Release Tab In Locked Position
1—Wiper
2 — Release Tab
3—WiperArm
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SERVICING AND MAINTENANCE 461

3. With the wiper blade disengaged, remove the wiperblade 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). 4. Gently lower the wiper arm onto the glass.
Wiper Blade With Release Tab In Unlocked Position
1—WiperBlade
2 — Release Tab
3—WiperArm
Wiper Blade Removed From Wiper Arm
1 — Wiper Blade
2—WiperArm
3 — Release Tab
462 SERVICING AND MAINTENANCE