jacking JEEP GRAND CHEROKEE 2012 WK2 / 4.G Owners Manual

•Selected Ride Height Not Permitted — The vehicle
speed is too high to enter one of the preset levels
(Entry/Exit Level/Off Road Ride Height Level 1/Off
Road Ride Height Level 2).
•Air Suspension System Cooling Down – Please Wait —
This message is displayed if the compressor tempera-
ture level is too high. Level control is suspended until
the compressor has cooled down.
•Vehicle Cannot Be Lowered – Door Open — This
message is displayed if a door or the liftgate is ajar and
level control is suspended.
•Air Suspension Temporarily Disabled For Jacking And
Tire Change
•Aerodynamic Ride Height — This is displayed (for
5 seconds) when the vehicle has achieved the Aerody-
namic Height.
EVIC White Telltale Lights
This area will show reconfigurable white caution tell-
tales. These telltales include:
•Shift Lever Status
The shift lever status “P,R,N,D,L,5,4,3,2,1” are displayed
indicating the shift lever position. Telltales “5,4,3,2,1”
indicate the Electronic Range Select (ERS) feature has
been engaged and the gear selected is displayed. For
further information on ERS, refer to “Starting And Oper-
ating”
•Electronic Speed Control ON This light will turn on when the electronic
speed control is ON. For further information,
refer to “Electronic Speed Control” in “Under-
standing The Features Of Your Vehicle.”
304 UNDERSTANDING YOUR INSTRUMENT PANEL

After the engine is turned off, it may be noticed that the
air suspension system operates briefly, this is normal. The
system is correcting the position of the vehicle to ensure
a proper appearance.
To assist with changing a spare tire, the Quadra-Lift™ air
suspension system has a feature which allows the auto-
matic leveling to be disabled. Press and hold both the
“Up” and “Down” buttons simultaneously between 5
and 10 seconds, a message will appear in the EVIC
stating leveling has been disabled immediately after both
buttons have been released. Refer to “Electronic Vehicle
Information Center (EVIC)” in “Understanding Your
Instrument Panel” for further information. Driving the
vehicle over 5 mph (8 km/h) will return the air suspen-
sion to normal operation. Refer to “Jacking and Tire
Changing” in “What To Do In Emergencies” for further
information.WARNING!
The air suspension system uses a high pressure
volume of air to operate the system. To avoid per-
sonal injury or damage to the system, see your
authorized dealer for service.
Electronic Vehicle Information Center (EVIC)
Display Messages
When the appropriate conditions exist, a message will
appear in the EVIC display. Refer to “Electronic Vehicle
Information Center (EVIC)” in “Understanding Your
Instrument Panel” for further information.
An audible chime will be heard whenever a system error
has been detected.5
STARTING AND OPERATING 451

WHAT TO DO IN EMERGENCIES
CONTENTS
Hazard Warning Flashers ................ 548
 If Your Engine Overheats ................ 548
 Jacking And Tire Changing ............... 549
▫ Jack Location ....................... 550
▫ Spare Tire Stowage ................... 550
▫ Preparations For Jacking ............... 551
▫ Jacking Instructions ................... 552
▫ Road Tire Installation ................. 558
 Jump-Starting ........................ 559
▫ Preparations For Jump-Start ............. 560▫
Jump-Starting Procedure ............... 561
 Freeing A Stuck Vehicle ................. 563
 Emergency Tow Hooks — If Equipped ...... 564
 Shift Lever Override ................... 565
 Towing A Disabled Vehicle ............... 566
▫ Towing Without The Ignition Key Fob ..... 568
▫ Two-Wheel Drive Models .............. 568
▫ Four-Wheel Drive Models .............. 569
6

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.
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.(Continued)
6
WHAT TO DO IN EMERGENCIES 549

Preparations For Jacking
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.
3. Set the parking brake.
4. Place the shift lever into PARK.
5. Turn the ignition OFF. 6. Block both the front and rear of the
wheel diagonally opposite of the jack-
ing position. 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 vehicle equipped with Quadra-Lift refer to
“Quadra-Lift — If Equipped” in “Starting And Operat-
ing” for further information on disabling automatic
leveling.
6
WHAT TO DO IN EMERGENCIES 551

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.
•Block 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.(Continued)
WARNING! (Continued)
•Do not let anyone sit in the vehicle when it is on a
jack.
•Do not get under the vehicle when it is on a jack.
•Only use the jack in the positions indicated and
for lifting this vehicle during a tire change.
•If working on or near a roadway, be extremely
careful of motor traffic.
•To assure that spare tires, flat or inflated, are
securely stowed, spares must be stowed with the
valve stem facing the ground.
Jack Warning Label
552 WHAT TO DO IN EMERGENCIES

CAUTION!
Do not attempt to raise the vehicle by jacking on
locations other than those indicated in the Jacking
Instructions for this vehicle.
1. Remove the spare tire, jack, and tools from storage.
2. Loosen (but do not remove) the wheel lug nuts by
turning them to the left, one turn, while the wheel is still
on the ground.
3. Assemble the jack and jacking tools.
Jack and Tool Assembly6
WHAT TO DO IN EMERGENCIES 553

CAUTION!
Do not attempt to raise vehicle by jacking on loca-
tions other than those indicated in the Jacking In-
structions for this vehicle.4. For the front axle, place the jack on the body flange
just behind the front tire as indicated by the triangular lift
point symbol on the sill molding.
Do not raise the
vehicle until you are sure the jack is fully engaged.
Jacking Locations
Lift Point Symbol On Sill Molding
554 WHAT TO DO IN EMERGENCIES

5. For a rear tire, place the jack in the slot on the rear
tie-down bracket, just forward of the rear tire (as indi-
cated by the triangular lift point symbol on the sill
molding).Do not raise the vehicle until you are sure the
jack is fully engaged.
Front Jacking LocationLift Point Symbol On Sill Molding6
WHAT TO DO IN EMERGENCIES 555

6. Raise the vehicle by turning the jack screw clockwise.
Raise the vehicle only until the tire just clears the surface
and enough clearance is obtained to install the spare tire.
Minimum tire lift provides maximum stability.
WARNING!
Raising the vehicle higher than necessary can make
the vehicle less stable. It could slip off the jack and
hurt someone near it. Raise the vehicle only enough
to remove the tire.
7. Remove the lug nuts and wheel.
8. Position the spare wheel/tire on the vehicle and install
the lug nuts with the cone-shaped end toward the wheel.
Lightly tighten the nuts.
CAUTION!
Be sure to mount the spare tire with the valve stem
facing outward. The vehicle could be damaged if the
spare tire is mounted incorrectly.
Rear Jacking Location
556 WHAT TO DO IN EMERGENCIES