User Manual - Page 508

For 2019 Grand Cherokee.

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If you do not disconnect the battery from the electrical
system, check the battery charge every 30 days.
Clean and protect the painted parts by applying protec-
tive waxes.
Clean and protect polished metal parts by applying
protective waxes.
Apply talcum powder to the front and rear wiper blades
and leave raised from the glass.
Cover the vehicle with an appropriate cover taking care
not to damage the painted surface by dragging across
dirty surfaces. Do not use plastic sheeting which will not
allow the evaporation of moisture present on the surface
of the vehicle.
Inflate the tires at a pressure of +7.25 psi (+0.5 bar)
higher than recommended on the tire placard and check
it periodically.
Do not drain the engine cooling system.
Whenever you leave the vehicle is stationary for two
weeks or more, run idle the engine for approximately five
minutes, with the air conditioning system on and high fan
speed. This will ensure a proper lubrication of the system,
thus minimizing the possibility of damage to the compres-
sor when the vehicle is put back into operation.
NOTE: When the vehicle has not been started or driven for
at least 30 days, an Extended Park Start Procedure is
required to start the vehicle.
Refer to “Starting The Engine” in “Starting And Operat-
ing” for further information.
CAUTION!
Before removal of the positive and negative terminals
to the battery, wait at least a minute with ignition
switch in the OFF position and close the drivers door.
When reconnecting the positive and negative terminals
to the battery be sure the ignition switch is in the OFF
position and the drivers door is closed.
BODYWORK
Protection From Atmospheric Agents
Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
passable in snow and ice and those that are sprayed on
trees and road surfaces during other seasons are highly
corrosive to the metal in your vehicle. Outside parking,
which exposes your vehicle to airborne contaminants, road
surfaces on which the vehicle is operated, extreme hot or
506 SERVICING AND MAINTENANCE
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