2018 JEEP GRAND CHEROKEE engine

Miles or time passed (whichever comes first):12,500
25,000
37,500
50,000
62,500
75,000
87,500
100,000
112,500
125,000
137,500
150,000
Or Months: 12 24 36 48 60 72 84 96 108 120 132 144
Kilometers:
20,000
40,000
60,000
80,000
100,000
120,000
140,000
160,000
180,000
200,000
220,000
240,000
Adjust parking brake on vehicles equipped with
four-wheel disc brakes.XXX X X X
Replace engine air cleaner filter. X X X X X X
Replace air conditioning/cabin air filter X X X X X X XXXXXX
Replace accessory drive belt(s).X
Flush and replace the engine coolant at 10 years
or 150,000 miles (240,000 km) whichever comes
first.XX
Inspect or change the transfer case fluid if using
your vehicle for any of the following: police, taxi,
fleet, or frequent trailer towing.XX X
Change the transfer case fluid X X X
(*) The actual interval for changing engine oil
and replacing the engine oil filter depends on
the vehicle usage conditions, and is signalled
by the warning light or message in the instru-
ment panel. In all cases, never exceed 1 year/
20,000 km.
(**) The brake fluid change interval is time
based only, mileage intervals do not apply.WARNING!
•You can be badly injured working on or
around a motor vehicle. Do only service work
for which you have the knowledge and the
right equipment. If you have any doubt
about your ability to perform a service job,
take your vehicle to a competent mechanic.
WARNING!
•Failure to properly inspect and maintain
your vehicle could result in a component
malfunction and effect vehicle handling and
performance. This could cause an accident.
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ENGINE COMPARTMENT
3.6L Engine
1 — Remote Jump Start Positive Terminal 6 — Washer Fluid Reservoir
2 — Brake Fluid Reservoir 7 — Engine Oil Filter Access
3 — Engine Oil Dipstick 8 — Engine Coolant Reservoir
4 — Engine Oil Fill 9 — Power Distribution Center (Fuses)
5 — Air Cleaner Filter 10 — Remote Jump Start Negative Terminal
SERVICING AND MAINTENANCE
242

5.7L Engine
1 — Remote Jump Start Positive Terminal 6 — Washer Fluid Reservoir
2 — Brake Fluid Reservoir 7 — Engine Oil Dipstick
3 — Power Distribution Center (Fuses) 8 — Coolant Pressure Cap (Radiator)
4 — Engine Oil Fill 9 — Remote Jump Start Negative Terminal
5 — Air Cleaner Filter
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6.2L Supercharged Engine
1 — Remote Jump Start Positive Terminal
2 — Brake Fluid Reservoir
3 — Power Distribution Center (Fuses)
4 — Intercooler Coolant Reservoir
5 — Engine Oil Dipstick
6 — Engine Oil Fill7 — Air Cleaner Filter
8 — Washer Fluid Reservoir
9 — Coolant Pressure Cap (Radiator)
10 — Engine Coolant Reservoir
11 — Remote Jump Start Negative Terminal
SERVICING AND MAINTENANCE
244

6.4L Engine
1 — Remote Jump Start Positive Terminal 6 — Washer Fluid Reservoir
2 — Brake Fluid Reservoir 7 — Engine Oil Dipstick
3 — Power Distribution Center (Fuses) 8 — Coolant Pressure Cap (Radiator)
4 — Engine Oil Fill 9 — Remote Jump Start Negative Terminal
5 — Air Cleaner Filter
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3.0L Diesel Engine
1 — Remote Jump Start Positive Terminal 6 — Engine Oil Dipstick
2 — Brake Fluid Reservoir 7 — Coolant Pressure Reservoir
3 — Engine Oil Fill 8 — Power Distribution Center (Fuses)
4 — Air Cleaner Filter 9 — Remote Jump Start Negative Terminal
5 — Washer Fluid Reservoir
SERVICING AND MAINTENANCE
246

Checking Oil Level — Gasoline Engine
To assure proper lubrication of your vehicle’s
engine, the engine oil must be maintained at
the correct level. Check the oil level at regular
intervals, such as every fuel stop. The best
time to check the engine oil level is about five
minutes after a fully warmed up engine is
shut off.
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil
level readings. Always maintain the oil level
within the SAFE zone on the dipstick. Adding
one quart of oil when the reading is at the
bottom of the SAFE zone will result in a
reading at the top of the safe zone on these
engines.
CAUTION!
Overfilling or underfilling the crankcase
will cause aeration or loss of oil pressure.
This could damage your engine.
Checking Oil Level — 3.0 Diesel Engine
To assure proper lubrication of your vehicle's
engine, the engine oil must be maintained at
the correct level. Check the oil level at regular
intervals. The best time to check the oil level
is before starting the engine after it has been
parked overnight. When checking oil after
operating the engine, first ensure the engine
is at full operating temperature, then wait for
five minutes after engine shutdown to check
the oil.
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil
level readings. Add oil only when the level on
the dipstick is below the “MIN” mark. The
total capacity from the MIN mark to the MAX
mark is 1 qt (1 L).
CAUTION!
Overfilling or underfilling the crankcase
will cause oil aeration or loss of oil pres-
sure. This could damage your engine.NOTE:
It is possible for your oil level to be slightly
higher than a previous check. This would be
due to diesel fuel that may temporarily be in
the crankcase due to operation of the diesel
particulate filter regeneration strategy. This
fuel will evaporate out under normal opera-
tion.
Never operate the engine with oil level below
the “MIN” mark or above the upper “MAX”
mark.
Adding Washer Fluid
The instrument cluster display will indicate
when the washer fluid level is low. When the
sensor detects a low fluid level, the wind-
shield will light on the vehicle graphic outline
and the “WASHER FLUID LOW” message
will be displayed.
The fluid reservoir for the windshield washers
and the rear window washer is shared. The
fluid reservoir is located in the engine com-
partment, be sure to check the fluid level at
regular intervals. Fill the reservoir with wind-
shield washer solvent only (not radiator anti-
freeze). When refilling the washer fluid reser-
247

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 door hinge and reattach the tension
tether by inserting the tether clip in the
glove compartment and sliding the clip
away from the face of the glove compart-
ment 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.
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 prod-
ucts such as engine oil, gasoline, etc.
NOTE:
Life expectancy of wiper blades varies de-
pending on geographical area and frequency
of use. Poor performance 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 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.
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.
251