Jump start JEEP GRAND CHEROKEE 2021 Owner handbook (in English)

QUADRA-LIFT — IF EQUIPPED............ 163Description.................... 163
Air Suspension Modes............. 165
Instrument Cluster Display Messages..... 166
Operation..................... 166
SELEC-TERRAIN — IF EQUIPPED........... 167Selec-Terrain Mode Selection......... 167
Instrument Cluster Display Messages..... 168
SELEC-TRACK — IF EQUIPPED (SRT)........ 168Custom....................... 169
Active Damping System............. 169
Launch Control— If Equipped......... 170
Guidelines For Track Use............ 171
SPEED CONTROL — IF EQUIPPED.......... 172To Activate.................... 173
To Set A Desired Speed............ 173
To Resume Speed................ 173
To Deactivate................... 174
ADAPTIVE CRUISE CONTROL (ACC)
— IF EQUIPPED.................... 174
To Activate/Deactivate.............. 174
To Set A Desired ACC Speed.......... 175
To Resume.................... 175
To Vary The Speed Setting........... 175
Setting The Following Distance In ACC.... 177
PARKSENSE REAR PARK ASSIST — IF EQUIPPED . . 177ParkSense Sensors................ 177
ParkSense Warning Display........... 177
Enabling And Disabling ParkSense...... 178
ParkSense System Usage Precautions.... 178
PARKSENSE FRONT AND REAR PARK ASSIST — IF
EQUIPPED....................... 179
ParkSense Sensors................ 179
Enabling And Disabling ParkSense...... 180
PARKSENSE ACTIVE PARK ASSIST SYSTEM — IF
EQUIPPED....................... 180
Enabling And Disabling The ParkSense Active
Park Assist System................ 181
LANESENSE — IF EQUIPPED............. 181LaneSense Operation.............. 181
Turning LaneSense On Or Off......... 182
LaneSense Warning Message.......... 182
Changing LaneSense Status.......... 183
PARKVIEW REAR BACK UP CAMERA — IF
EQUIPPED....................... 184
REFUELING THE VEHICLE — GASOLINE ENGINE . . . 185
Emergency Fuel Filler Door Release..... 187
REFUELING THE VEHICLE — DIESEL ENGINE.... 188Avoid Using Contaminated Fuel........ 190
AdBlue®(UREA) — If Equipped....... 190
TRAILER TOWING................... 192Trailer Towing Weights (Maximum Trailer Weight
Ratings) — Non SRT.............. 192
Trailer Towing Weights (Maximum Trailer Weight
Ratings) — SRT................. 194
Trailer Hitch Receiver Cover Removal (Summit
Models) — If Equipped............. 194
Trailer Hitch Receiver Cover Removal (SRT
Models) — If Equipped............. 196
RECREATIONAL TOWING (BEHIND MOTORHOME,
ETC.).......................... 198
Towing This Vehicle Behind Another
Vehicle....................... 198
Recreational Towing — Two Wheel Drive
Models....................... 199
Recreational Towing — Quadra-Trac I
(Single-Speed Transfer Case) Four-Wheel Drive
Models....................... 199Recreational Towing — Quadra–Trac II/
Quadra–Drive II Four-Wheel Drive Models . . 200
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS............ 203
BULB REPLACEMENT................. 204
Replacement Bulbs............... 204
Bulb Replacement................ 206
FUSES......................... 210General Information............... 210
Underhood Fuses................ 210
JACKING AND TIRE CHANGING............ 217Run Flat Tires — SRT Models......... 217
Jack Location................... 217
Spare Tire Stowage............... 217
Preparations For Jacking............ 218
Jacking Instructions............... 218
Road Tire Installation.............. 222
Declaration Of Conformance.......... 222
Jack Usage Precautions............ 225
JUMP STARTING.................... 225Preparations For Jump Start.......... 226
Jump Starting Procedure............ 227
REFUELING IN EMERGENCY.............. 228
IF YOUR ENGINE OVERHEATS............ 228
MANUAL PARK RELEASE............... 229
FREEING A STUCK VEHICLE.............. 230
TOWING A DISABLED VEHICLE............ 231
Without The Key Fob.............. 233
Two-Wheel Drive Models............ 233
Four-Wheel Drive Models............ 233
Tow Eye Usage — If Equipped......... 234
Emergency Tow Hooks — If Equipped.... 235
ENHANCED ACCIDENT RESPONSE SYSTEM (EARS). . 235
TABLE OF CONTENTS
8

Jack Usage Precautions
To complete the Use and Maintenance Hand-
book to which this supplement is attached,
given below are some instructions on the
proper use of the jack.
WARNING!
When using the crank, make sure it turns
freely without the risk of scraping hands
against the ground.
Even the moving parts of the jack, the
“worm screw” and joints can cause inju-
ries: avoid contact with them. Clean it
thoroughly if dirtied with grease.
CAUTION!
The jack is a tool designed exclusively for
changing a wheel, in case of a puncture or
damage to a tire of the vehicle on which it
is fitted or on vehicles of the same model.
Any other use, e.g. to jack up other vehicle
models or different things, is strictly pro-
hibited. Never use it to carry out mainte-
nance or repairs under the vehicle or to
CAUTION!
change summer/winter wheels and vice
versa. Never go under the raised vehicle. If
any work under the vehicle is necessary,
contact an authorized dealer. Incorrect
placing of the jack can cause the vehicle to
drop: use it only in the positions indicated.
Do not use the jack for loads higher than
that specified on the label. Never start the
engine with vehicle raised. If the vehicle is
raised more than necessary, everything
can become more unstable, with the risk of
the vehicle dropping violently. Therefore
raise the vehicle only as much as neces-
sary for the wheel/spare.
Maintenance
• Make sure grime does not build up on the
“worm screw.”
• Keep the “worm screw” lubricated.
• Never modify the jack.
Conditions Of Non-Use:
• Temperatures below −40°F (-40°C).
• On sandy or muddy ground.
• On uneven ground.• On steep roads.
• In extreme weather conditions: thunder-
storms, typhoons, hurricanes, blizzards,
storms, etc.
NOTE:
• The jack requires no adjustment.
• The jack cannot be repaired, and in the
event of a fault, it must be replaced by
another genuine one.
• No tool other than its cranking device may
be fitted on the jack.
JUMP STARTING
If your vehicle has a discharged battery, it can
be jump started using a set of jumper cables
and a battery in another vehicle, or by using a
portable battery booster pack. Jump starting
can be dangerous if done improperly, so
please follow the procedures in this section
carefully.
225

WARNING!
Do not attempt jump starting if the battery
is frozen. It could rupture or explode and
cause personal injury.
CAUTION!
Do not use a portable battery booster pack
or any other booster source with a system
voltage greater than 12 Volts or damage to
the battery, starter motor, alternator or
electrical system may occur.
NOTE:
When using a portable battery booster pack,
follow the manufacturer's operating instruc-
tions and precautions.
Preparations For Jump Start
The battery in your vehicle is located under
the passenger's front seat. There are remote
terminals located under the hood to assist in
jump starting.WARNING!
• Take care to avoid the radiator cooling
fan whenever the hood is raised. It can
start anytime the ignition switch is ON.
You can be injured by moving fan
blades.
WARNING!
• Remove any metal jewelry such as rings,
watch bands and bracelets that could
make an inadvertent electrical contact.
You could be seriously injured.
• Batteries contain sulfuric acid that can
burn your skin or eyes and generate
hydrogen gas which is flammable and
explosive. Keep open flames or sparks
away from the battery.
NOTE:
Be sure that the disconnected cable ends do
not touch each other, or either vehicle, until
properly connected for jump starting.
1. Apply the parking brake, shift the auto-
matic transmission into PARK and turn
the ignition OFF.
2. Turn off the heater, radio, and all unnec-
essary electrical accessories.
3. Remove the protective cover over the re-
mote positive(+)battery post. Pull up-
ward on the cover to remove it.
Jump Starting Locations
(+) — Remote Positive Post
(-) — Remote Negative Post
IN CASE OF EMERGENCY
226

4. If using another vehicle to jump start the
battery, park the vehicle within the jumper
cables reach, apply the parking brake and
make sure the ignition is OFF.
WARNING!
Do not allow vehicles to touch each other
as this could establish a ground connec-
tion and personal injury could result.
Jump Starting Procedure
WARNING!
Failure to follow this jump starting proce-
dure could result in personal injury or
property damage due to battery explosion.
CAUTION!
Failure to follow these procedures could
result in damage to the charging system of
the booster vehicle or the discharged ve-
hicle.NOTE:
Make sure at all times that unused ends of
jumper cables are not contacting each other
or either vehicle while making connections.
Connecting The Jumper Cables
1. Connect the positive(+)end of the jumper
cable to the remote positive(+)post of the
discharged vehicle.
2. Connect the opposite end of the positive
(+)jumper cable to the positive(+)post of
the booster battery.
3. Connect the negative end(-)of the jumper
cable to the negative(-)post of the
booster battery.
4. Connect the opposite end of the negative
(-)jumper cable to the remote negative(-)
post of the vehicle with the discharged
battery.WARNING!
Do not connect the jumper cable to the
negative (-) post of the discharged battery.
The resulting electrical spark could cause
the battery to explode and could result in
WARNING!
personal injury. Only use the specific
ground point, do not use any other exposed
metal parts.
5. Start the engine in the vehicle that has the
booster battery, let the engine idle a few
minutes, and then start the engine in the
vehicle with the discharged battery.
CAUTION!
Do not run the booster vehicle engine
above 2,000 rpm since it provides no
charging benefit, wastes fuel, and can
damage booster vehicle engine.
6. Once the engine is started, remove the
jumper cables in the reverse sequence:
Disconnecting The Jumper Cables
1. Disconnect the negative(-)end of the
jumper cable from the remote negative(-)
post of the discharged vehicle.
2. Disconnect the opposite end of the nega-
tive(-)jumper cable from the negative(-)
post of the booster battery.
227

3. Disconnect the positive(+)end of the
jumper cable from the positive(+)post of
the booster battery.
4. Disconnect the opposite end of the posi-
tive(+)jumper cable from the remote
positive(+)post of the discharged
vehicle.
5. Reinstall the protective cover over the
remote positive(+)post of the discharged
vehicle.
If frequent jump starting is required to start
your vehicle you should have the battery and
charging system tested at an authorized
dealer.
CAUTION!
Accessories plugged into the vehicle
power outlets draw power from the vehi-
cle’s battery, even when not in use (i.e.,
cellular devices, etc.). Eventually, if
plugged in long enough without engine
operation, the vehicle’s battery will dis-
charge sufficiently to degrade battery life
and/or prevent the engine from starting.
REFUELING IN EMERGENCY
The funnel for the Cap-Less Fuel System is
located in the spare tire storage area. If your
vehicle is out of fuel and an auxiliary fuel can
is needed, insert the funnel into the filler
neck and proceed to fill the vehicle.
For more information on the Cap-Less Fuel
System refer to “Refueling The Vehicle” in
“Starting And Operating”.
IF YOUR ENGINE
OVERHEATS
In any of the following situations, you can
reduce the potential for overheating by taking
the appropriate action.
• On the highways — slow down.
• In city traffic — while stopped, place the
transmission in NEUTRAL, but do not in-
crease the engine idle speed while prevent-
ing vehicle motion with the brakes.NOTE:
There are steps that you can take to slow
down an impending overheat condition:
• If your air conditioner (A/C) is on, turn it off.
The A/C system adds heat to the engine
cooling system and turning the A/C off can
help remove this heat.
• You can also turn the temperature control
to maximum heat, the mode control to floor
and the blower control to high. This allows
the heater core to act as a supplement to
the radiator and aids in removing heat from
the engine cooling system.WARNING!
You or others can be badly burned by hot
engine coolant (antifreeze) or steam from
your radiator. If you see or hear steam
coming from under the hood, do not open
the hood until the radiator has had time to
cool. Never try to open a cooling system
pressure cap when the radiator or coolant
bottle is hot.
IN CASE OF EMERGENCY
228

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
248

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
249

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
250

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
251

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
252