Jeep GRAND CHEROKEE 4xe 2023, Owner'S Manual

Page: 361 / 440

SERVICING AND MAINTENANCE 359
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.
See an authorized dealer for service.
Accessory Belt (Serpentine Belt)
B
ODY
L
UBRICATION
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 to ensure quiet, easy
operation and to protect against rust and wear.
Prior to the application 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 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 Autumn and Spring.
Apply a small amount of a high quality lubricant
directly into the lock cylinder.
W
INDSHIELD
W
IPER
B
LADES
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
performance of blades may be present with chat-
tering, 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.
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