2021 JEEP GRAND CHEROKEE gas type

EVENT DATA RECORDER (EDR)............ 235
SERVICING AND MAINTENANCE
SCHEDULED SERVICING................ 236Scheduled Servicing — Non SRT....... 236
Scheduled Servicing — SRT.......... 240
Scheduled Servicing — Diesel Engine.... 244
ENGINE COMPARTMENT............... 2483.6L Engine.................... 248
5.7L Engine.................... 249
6.2L Supercharged Engine........... 250
6.4L Engine.................... 251
3.0L Diesel Engine............... 252
Checking Oil Level — Gasoline Engine.... 253
Checking Oil Level — 3.0 Diesel Engine . . . 253
Adding Washer Fluid............... 254
Brake System.................. 255
Automatic Transmission............. 256
Maintenance-Free Battery........... 256
DEALER SERVICE................... 257Air Conditioner Maintenance......... 257
Windshield Wiper Blades............ 258
Cooling System.................. 262
RAISING THE VEHICLE................. 262
TIRES.......................... 262
Tires — General Information......... 262
Tire Types..................... 267
Spare Tires — If Equipped........... 268
Wheel And Wheel Trim Care.......... 270
Tire Chains (Traction Devices) — Non-SRT . 271
Tire Chains (Traction Devices) — SRT.... 272
Tire Rotation Recommendations........ 272
STORING THE VEHICLE................ 273
BODYWORK....................... 274
Preserving The Bodywork............ 274
INTERIORS....................... 275Seats And Fabric Parts............. 275
Plastic And Coated Parts............ 276
Leather Parts................... 276
Glass Surfaces.................. 276
TECHNICAL SPECIFICATIONS
IDENTIFICATION DATA................. 277Vehicle Identification Number......... 277
WHEEL AND TIRE TORQUE SPECIFICATIONS.... 278Torque Specifications.............. 278
DIMENSIONS...................... 279
WHEELS........................ 280
WEIGHTS........................ 281
FUEL REQUIREMENTS — GASOLINE ENGINES.... 282
3.6L Engine.................... 282
5.7L Engine.................... 282
6.2L/6.4L Engine................ 283
Methanol..................... 283
Ethanol....................... 283
Reformulated Gasoline............. 284
Do Not Use E-85 In Non-Flex Fuel Vehicles . 284
CNG And LP Fuel System Modifications . . . 284
Materials Added To Fuel............ 284
Fuel Icon Identification Compliant To
EN16942..................... 284
Carbon Monoxide Warnings.......... 286
FUEL REQUIREMENTS – DIESEL ENGINE....... 287Fuel Icon Identification Compliant To
EN16942..................... 287
NON-SRT FLUID CAPACITIES............. 290
SRT FLUID CAPACITIES................ 291FLUIDS AND LUBRICANTS NON-SRT......... 291
Engine....................... 291
Chassis....................... 294
FLUIDS AND LUBRICANTS — SRT.......... 295Engine....................... 295
Chassis....................... 297
FUEL CONSUMPTION AND CO2EMISSIONS..... 298
MOPAR ACCESSORIES................. 298
Authentic Accessories By Mopar........ 298
MULTIMEDIA
CYBERSECURITY................... 300
UCONNECT 4 WITH 7-INCH DISPLAY......... 301
Uconnect 4 At A Glance............ 301
Drag & Drop Menu Bar............. 302
Radio....................... 303
Android Auto — If Equipped.......... 304
Apple CarPlay Integration — If Equipped . . 305
Apps — If Equipped............... 306
UCONNECT 4C/4C NAV WITH 8.4-INCH DISPLAY . . 307Uconnect 4C/4C NAV At A Glance...... 307
Drag & Drop Menu Bar............. 308
Radio....................... 309
Android Auto — If Equipped.......... 310
Apple CarPlay Integration — If Equipped . . 314
Apps — If Equipped............... 316
UCONNECT SETTINGS................. 316
OFF ROAD PAGES — IF EQUIPPED.......... 317
Off Road Pages Status Bar........... 317
Vehicle Dynamics................ 318
Suspension.................... 318
Pitch And Roll.................. 319
Accessory Gauges................ 319
Selec-Terrain — If Equipped.......... 320
9

WARNING!
and you could be injured because the air
bags may no longer be functional. The
protective covers for the air bag cushions
are designed to open only when the air
bags are inflating.
• Relying on the air bags alone could lead
to more severe injuries in a collision. The
air bags work with your seat belt to
restrain you properly. In some collisions,
air bags won’t deploy at all. Always wear
your seat belts even though you have air
bags.
Front Air Bag Operation
Front Air Bags are designed to provide addi-
tional protection by supplementing the seat
belts. Front air bags are not expected to
reduce the risk of injury in rear, side, or
rollover collisions. The front air bags will not
deploy in all frontal collisions, including
some that may produce substantial vehicle
damage — for example, some pole collisions,
truck underrides, and angle offset collisions.On the other hand, depending on the type
and location of impact, front air bags may
deploy in crashes with little vehicle front-end
damage but that produce a severe initial
deceleration.
Because air bag sensors measure vehicle
deceleration over time, vehicle speed and
damage by themselves are not good indica-
tors of whether or not an air bag should have
deployed.
Seat belts are necessary for your protection in
all collisions, and also are needed to help
keep you in position, away from an inflating
air bag.
When the ORC detects a collision requiring
the front air bags, it signals the inflator units.
A large quantity of non-toxic gas is generated
to inflate the front air bags.
The steering wheel hub trim cover and the
upper passenger side of the instrument panel
separate and fold out of the way as the air
bags inflate to their full size. The front air
bags fully inflate in less time than it takes to
blink your eyes. The front air bags then
quickly deflate while helping to restrain the
driver and front passenger.
Knee Impact Bolsters
The Knee Impact Bolsters help protect the
knees of the driver and front passenger, and
position the front occupants for improved
interaction with the front air bags.
WARNING!
• Do not drill, cut, or tamper with the knee
impact bolsters in any way.
• Do not mount any accessories to the
knee impact bolsters such as alarm
lights, stereos, citizen band radios, etc.
Supplemental Driver Knee Air Bag
This vehicle is equipped with a Supplemental
Driver Knee Air Bag mounted in the instru-
ment panel below the steering column. The
Supplemental Driver Knee Air Bag provides
enhanced protection during a frontal impact
by working together with the seat belts, pre-
tensioners, and front air bags.
SAFETY
120

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.
WARNING!
• Never smoke while working in the engine
compartment: gas and inflammable va-
pors may be present, with the risk of fire.
• Be very careful when working in the
engine compartment when the engine is
hot: you may get burned. Do not get too
close to the radiator cooling fan: the
electric fan may start; danger of injury.
Scarves, ties and other loose clothing
might be pulled by moving parts.
CAUTION!
• Be careful not to confuse the various
types of fluids while topping up: they are
not compatible with each other! Topping
up with an unsuitable fluid could se-
verely damage your car.
• The oil level must never exceed the MAX
mark.
• Always top up using engine oil of the
same specifications as that already in
the engine.
CAUTION!
• If the engine oil is being topped up, wait
for the engine to cool down before loos-
ening the filler cap, particularly for ve-
hicles with aluminium cap (if equipped).
WARNING: risk of burns!
• 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.
253

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.
WARNING!
• Never smoke while working in the engine
compartment: gas and inflammable va-
pors may be present, with the risk of fire.
• Be very careful when working in the
engine compartment when the engine is
hot: you may get burned. Do not get too
close to the radiator cooling fan: the
electric fan may start; danger of injury.
Scarves, ties and other loose clothing
might be pulled by moving parts.
CAUTION!
• Be careful not to confuse the various
types of fluids while topping up: they are
not compatible with each other! Topping
up with an unsuitable fluid could se-
verely damage your car.
• The oil level must never exceed the MAX
mark.
• Always top up using engine oil of the
same specifications as that already in
the engine.
CAUTION!
• If the engine oil is being topped up, wait
for the engine to cool down before loos-
ening the filler cap, particularly for ve-
hicles with aluminium cap (if
equipped). WARNING: risk of burns!
• Overfilling or underfilling the crankcase
will cause aeration or loss of oil pres-
sure. This could damage your engine.
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-
voir, take some washer fluid and apply it to a
cloth or towel and wipe clean the wiper
SERVICING AND MAINTENANCE
254

Reformulated Gasoline
Many areas of the country require the use of
cleaner burning gasoline referred to as “Re-
formulated Gasoline”. Reformulated gaso-
line contains oxygenates and are specifically
blended to reduce vehicle emissions and im-
prove air quality.
The use of reformulated gasoline is recom-
mended. Properly blended reformulated
gasoline will provide improved performance
and durability of engine and fuel system
components.
Do Not Use E-85 In Non-Flex Fuel
Vehicles
Non-Flex Fuel Vehicles (FFV) are compatible
with gasoline containing up to 15% ethanol
(E-15). Use of gasoline with higher ethanol
content may void the New Vehicle Limited
Warranty.If a Non-FFV vehicle is inadvertently fueled
with E-85 fuel, the engine will have some or
all of these symptoms:
• Operate in a lean mode.
• OBD II Malfunction Indicator Light on.
• Poor engine performance.
• Poor cold start and cold drivability.
• Increased risk for fuel system component
corrosion.
CNG And LP Fuel System Modifications
Modifications that allow the engine to run on
Compressed Natural Gas (CNG) or Liquid
Propane (LP) may result in damage to the
engine, emissions, and fuel system compo-
nents. Problems that result from running
CNG or LP are not the responsibility of the
manufacturer and may void or not be covered
under the New Vehicle Limited Warranty.
Materials Added To Fuel
Indiscriminate use of fuel system cleaning
agents should be avoided. Many of these
materials intended for gum and varnish re-
moval may contain active solvents or similar
ingredients. These can harm fuel system gas-
ket and diaphragm materials.
Fuel Icon Identification Compliant To
EN16942
The following symbols make it easier to rec-
ognize the correct type of fuel to be used on
your vehicle. Before proceeding with the sup-
ply, check the symbols placed inside the fuel
filler flap (if present) and compare them with
the symbol on the fuel pump (if present).
TECHNICAL SPECIFICATIONS
284

FUEL REQUIREMENTS –
DIESEL ENGINE
Use good quality diesel fuel from a reputable
supplier. If the outside temperature is very
low, the diesel fuel thickens due to the for-
mation of paraffin clots with consequent de-
fective operation of the fuel supply system. In
order to avoid these problems different types
of fuel are distributed according to the sea-
son: summer type, winter type and arctic type
(cold/mountain areas).This vehicle must only
use premium diesel fuel that meets the require-
ments of EN 590. Biodiesel blends up to 7% that
meet EN 590 may also be used.
WARNING!
Do not use alcohol or gasoline as a fuel
blending agent. They can be unstable un-
der certain conditions and hazardous or
explosive when mixed with diesel fuel.Diesel fuel is seldom completely free of wa-
ter. To prevent fuel system trouble, drain the
accumulated water from the fuel/water sepa-
rator using the fuel/water separator drain pro-
vided on the fuel filter housing. If you buy
good quality fuel and follow the cold weather
advice above, fuel conditioners should not be
required in your vehicle. If available in your
area, a high cetane “premium” diesel fuel
may offer improved cold-starting and
warm-up performance.
CAUTION!
If the “Water in Fuel Indicator Light” re-
mains on, DO NOT START engine before
you drain the water from the fuel filter(s) to
avoid engine damage. Refer to “Draining
Fuel/Water Separator Filter” in “Servicing
And Maintenance” in your Owner’s Manual
for further information.
Fuel Icon Identification Compliant To
EN16942
The following symbols make it easier to rec-
ognize the correct type of fuel to be used on
your vehicle. Before proceeding with the sup-
ply, check the symbols placed inside the fuel
filler flap (if present) and compare them with
the symbol on the fuel pump (if present).
287