JEEP GRAND CHEROKEE 2016 WK2 / 4.G SRT Owners Manual

•To prevent excess heat generation, avoid continuous
driving at high RPM. Reduce vehicle speed as neces-
sary to avoid extended driving at high RPM. Return to
a higher gear or vehicle speed when grade and road
conditions allow.
Electronic Speed Control — If Equipped
• Do not use in hilly terrain or with heavy loads.
• When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
• Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
Cooling System
To reduce potential for engine and transmission over-
heating, take the following actions:
City Driving
When stopped for short periods of time, shift the trans-
mission into NEUTRAL and increase engine idle speed.
Highway Driving
Reduce speed.
Air Conditioning
Turn off temporarily.
5
STARTING AND OPERATING 579

RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.)
Recreational towing is not allowed.
CAUTION!
Towing this vehicle with any of its wheels on the
ground can cause severe transmission and/or transfer
case damage. Damage from improper towing is not
covered under the New Vehicle Limited Warranty.
NOTE: This vehicle may be towed on a flatbed or
vehicle trailer provided all four wheels are OFFthe
ground.
580 STARTING AND OPERATING

WHAT TO DO IN EMERGENCIES
CONTENTS
HAZARD WARNING FLASHERS ...........582
 IF YOUR ENGINE OVERHEATS ............582
 WHEEL AND TIRE TORQUE
SPECIFICATIONS ..................... .583
▫ Torque Specifications ...................584
 JACKING AND TIRE CHANGING ..........585
▫ Run Flat Tires ....................... .586
▫ Jack Location ....................... .586
▫ Spare Tire Stowage ....................587
▫ Preparations For Jacking ................587 ▫
Jacking Instructions ...................588
▫ Road Tire Installation ..................595
 JUMP-STARTING ..................... .596
▫ Preparations For Jump-Start ..............596
▫ Jump-Starting Procedure ................598
 FREEING A STUCK VEHICLE .............600
 MANUAL PARK RELEASE ................602
 TOWING A DISABLED VEHICLE ...........606
6

HAZARD WARNING FLASHERS
The Hazard Warning flasher switch is located on the
switch bank just above the climate controls.Push the switch to turn on the Hazard Warning
flasher. When the switch is activated, all direc-
tional turn signals will flash on and off to warn oncoming
traffic of an emergency. Push the switch a second time to
turn off the Hazard Warning flashers.
This is an emergency warning system and it should not
be used when the vehicle is in motion. Use it when your
vehicle is disabled and it is creating a safety hazard for
other motorists.
When you must leave the vehicle to seek assistance, the
Hazard Warning flashers will continue to operate even
though the ignition is placed in the OFF position.
NOTE: With extended use, the Hazard Warning flashers
may discharge the battery.
IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate ac-
tion.
• On the highways — slow down.
• In city traffic — while stopped, place the transmission
in NEUTRAL, but do not increase the engine idle
speed while preventing 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.
582 WHAT TO DO IN EMERGENCIES

•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.
CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads HOT
(H), pull over and stop the vehicle. Idle the vehicle
with the air conditioner turned off until the pointer
drops back into the normal range. If the pointer
remains on HOT (H), and you hear continuous
chimes, turn the engine off immediately and call for
service.
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.
WHEEL AND TIRE TORQUE SPECIFICATIONS
Proper lug nut/bolt torque is very important to ensure
that the wheel is properly mounted to the vehicle. Any
time a wheel has been removed and reinstalled on the
vehicle the lug nuts/bolts should be torqued using a
properly calibrated torque wrench.
6
WHAT TO DO IN EMERGENCIES 583

Torque Specifications
Lug Nut/Bolt Torque **Lug Nut/Bolt SizeLug Nut/
Bolt Socket Size
110 Ft-Lbs (149 N·m) M14 x 1.50 22 mm
**Use only your Authorized Dealer recommended lug
nuts/bolts and clean or remove any dirt or oil before
tightening.
Inspect the wheel mounting surface prior to mounting
the tire and remove any corrosion or loose particles.
Tighten the lug nuts/bolts in a star pattern until each
nut/bolt has been tightened twice.
After 25 miles (40 km) check the lug nut/bolt torque to be
sure that all the lug nuts/bolts are properly seated
against the wheel.
Wheel Mounting Surface
584 WHAT TO DO IN EMERGENCIES

WARNING!
To avoid the risk of forcing the vehicle off the jack,
do not tighten the lug nuts fully until the vehicle has
been lowered. Failure to follow this warning may
result in personal injury.
JACKING AND TIRE CHANGING
WARNING!
•Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off
the road to avoid the danger of being hit when
operating the jack or changing the wheel.
• Being under a jacked-up vehicle is dangerous. The
vehicle could slip off the jack and fall on you. You
could be crushed. Never put any part of your body
under a vehicle that is on a jack. If you need to get
under a raised vehicle, take it to a service center
where it can be raised on a lift.
• Never start or run the engine while the vehicle is
on a jack.
• The jack is designed to be used as a tool for
changing tires only. The jack should not be used to
(Continued)
Torque Patterns
6
WHAT TO DO IN EMERGENCIES 585

WARNING!(Continued)
lift the vehicle for service purposes. The vehicle
should be jacked on a firm level surface only.
Avoid ice or slippery areas.
Run Flat Tires
This vehicle is equipped with “run flat” tires. Run flat
tires allow the vehicle to be driven approximately 50
miles (80km) at 55 mph (88km/h). Tire service should be
obtained to avoid prolonged run flat feature usage.
WARNING!
Do not exceed 50 mph (80 km/h) if the “Tire Pressure
Monitoring Telltale Light” is illuminated. Vehicle
handling and braking may be reduced. You could
have a collision and be severely or fatally injured.
Jack Location
The scissor-type jack and tire changing tools are located
in rear cargo area, below the load floor.
Jack Storage Location
586 WHAT TO DO IN EMERGENCIES

NOTE:The funnel for the Cap-Less Fuel System is
located on top of the spare tire. 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
vehicles not equipped with a spare tire, the fuel filler
funnel is stored in the left storage bin under the load
floor. For more information on the Cap-Less Fuel System
refer to “Adding Fuel” in “Starting And Operating” in
this manual.
Spare Tire Stowage
The spare tire is stowed under the load floor in the rear
cargo area and is secured to the body with a special wing
nut.
Preparations For Jacking
CAUTION!
Always lift or jack the vehicle from the correct
jacking points. Failure to follow this information
could cause damage to the vehicle or underbody
components.
1. Park the vehicle on a firm, level surface. Avoid ice or slippery surfaces.
WARNING!
Do not attempt to change a tire on the side of the
vehicle closest to moving traffic, pull far enough off
the road to avoid being hit when operating the jack
or changing the wheel.
2. Turn on the Hazard Warning flasher.
6
WHAT TO DO IN EMERGENCIES 587

3. Set the parking brake.
4. Place the gear selector into PARK.
5. Turn the ignition OFF.6. Block both the front and rear of the wheeldiagonally opposite of the jacking posi-
tion. For example, if changing the right
front tire, block the left rear wheel.
NOTE: Passengers should not remain in the vehicle
when the vehicle is being jacked.
7. For vehicles equipped with Quadra-Lift, refer to “Quadra-Lift — If Equipped” in “Starting And Oper-
ating” for further information on disabling automatic
leveling.Jacking Instructions
WARNING!
Carefully follow these tire changing warnings to help
prevent personal injury or damage to your vehicle:
•Always park on a firm, level surface as far from the
edge of the roadway as possible before raising the
vehicle.
• Turn on the Hazard Warning flasher.
• Chock the wheel diagonally opposite the wheel to
be raised.
• Set the parking brake firmly and set an automatic
transmission in PARK.
• Never start or run the engine with the vehicle on a
jack.
• Do not let anyone sit in the vehicle when it is on a
jack.
(Continued)
588 WHAT TO DO IN EMERGENCIES