Body Lubrication; Windshield Wiper Blades - Jeep GRAND CHEROKEE 2022 Owner's Manual

336 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

position on pulley)
Belt broken (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.
B L
ODY 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, such as Mopar® Spray White
Lube 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,
such as Mopar® Lock Cylinder Lubricant directly
into the lock cylinder.
W W B
INDSHIELD IPER 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.