Pressure Washing; Vehicle Maintenance; Engine Oil - Jeep GRAND CHEROKEE 2022 Owner's Manual

WARNING!
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 accesso-

ries contain lead and lead compounds. 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 negative post. Battery posts
are marked positive (+) and negative (-) and
are identified 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 voltage.
P W
RESSURE ASHING
Cleaning the engine compartment with a high
pressure washer is not recommended.
CAUTION!
Precautions have been taken to safeguard all
parts and connections however, the pressures
generated by these machines is such that
complete protection against water ingress
cannot be guaranteed.

VEHICLE MAINTENANCE

An authorized dealer has the qualified service
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 before
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
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
service job, take your vehicle to a competent
mechanic.
E O
NGINE IL
Engine Oil Selection
Use only the manufacturer's recommended fluid
Ú page 390.
NOTE:
Hemi engines at times can tick right after startup and
then quiet down after approximately 30 seconds. This
is normal and will not harm the engine. This character-
istic can be caused by short drive cycles. For example,
if the vehicle is started then shut off after driving a short
distance. Upon restarting, you may experience a ticking
sound. Other causes could be if the vehicle is unused
for an extended period of time, incorrect oil, extended
oil changes or extended idling. If the engine continues
to tick or if the Malfunction Indicator Light (MIL) comes
on, see the nearest authorized dealer.
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