JEEP GRAND CHEROKEE 2011 WK2 / 4.G Repair Manual

• Normal Ride Height(NRH) – This is the
standard position of the
suspension and is meant
for normal driving. Only
the bottom Indicator lamp
on the “Up” button will be illuminated
when the vehicle is in this position.
• Off-Road 1 (OR1) (Raisesthe vehicle approximately
1.3 in (33 mm) – This
position is intended for
off-road driving only
where vehicle speeds may
go above 25 mph (40 km/h). Press
the “Up” button once from NRH while
vehicle speed is below 48 mph
(77 km/h). The bottom two Indicator
lamps on the “Up” button will be
illuminated when the vehicle is in
OR1.
• Off-Road 2 (OR2) (Raisesthe vehicle approximately
2.6 in (65 mm) – This
position is intended for
off-road driving where
maximum ground
clearance is required. Press the “Up”
button twice from NRH, or once from
OR1 position while vehicle speed is
below 20 mph (32 km/h). All three
Indicator lamps on the “Up” button
will be illuminated when the vehicle is
in OR2.
• Park Mode (Lowers thevehicle approximately
1.5 in (38 mm) – This
position lowers the vehicle
for easier passenger entry
and exit. Press the
“Down” button once from NRH while
the vehicle speed is below 25 mph
(40 km/h). Once the vehicle speed
goes below 15 mph (24 km/h) the
vehicle height will begin to lower. The
Indicator lamp on the “Down” button
will be illuminated when the vehicle is
in Park Mode.WARNING!
• You or others could be injured if you leave the vehicle unattended
with the transfer case in the N
(Neutral) position without first fully
engaging the parking brake. The
transfer case N (Neutral) position
disengages both the front and rear
driveshafts from the powertrain and
will allow the vehicle to move
regardless of the transmission
position. The parking brake should
always be applied when the driver
is not in the vehicle.
• The air suspension system uses a high pressure volume of air to
operate the system. To avoid
personal injury or damage to the
system, see your authorized dealer
for service.
Hill Start Assist/Hill
Descent Control
• The Hill Start Assist system assists the
driver when starting a vehicle from a
stop on a hill.
• The Hill Descent Control system maintains vehicle speed while
descending hills during off-road
driving situations and is available in
4WD HIGH range and 4WD LOW
range.
• Refer to your Owner's Manual on the DVD for further details.
UP
UP
UP
DOWN
PARK
OFF-ROAD CAPABILITIES
59

TRAILER TOWING WEIGHTS (MAXIMUM TRAILER WEIGHT RATINGS)Engine/Model ModelGCWR (Gross
Combined Wt. Rating) Frontal Area
Max. GTW (Gross
Trailer Wt.) Max. Trailer
Tongue Wt. (See
Note)
3.6L 4x2 10,400 lbs. (4 717 kg) 40 sq ft (3.72 sq m) 5,000 lbs (2 268 kg) 500 lbs (227 kg)
3.6L 4x4 10,400 lbs. (4 717 kg) 40 sq ft (3.72 sq m) 5,000 lbs (2 268 kg) 500 lbs (227 kg)
5.7L 4x2 13,100 lbs (5 942 kg) 60 sq ft (5.57 sq m) 7,400 lbs (3 357 kg) 740 lbs (336 kg)
5.7L 4x4 13,100 lbs (5 942 kg) 60 sq ft (5.57 sq m) 7,200 lbs (3 266 kg) 720 lbs (327 kg) Refer to local laws for maximum trailer towing speeds.
NOTE: The trailer tongue weight must be considered as part of the combined weight of occupants and cargo,
and should never exceed the weight referenced on the Tire and Loading Information placard.
• If the gross trailer weight is 3,500 lbs (1587 kg) or more, it is mandatory to use a weight-distributing hitch to ensure stable handling of your vehicle.
NOTE: Vehicles not factory equipped with trailer tow package are limited to 3,500 lbs (350 lbs tongue weight).
UTILITY
60

TOW/HAUL MODE
• When driving in hilly areas, towing atrailer, carrying a heavy load, etc.,
and frequent transmission shifting
occurs, press the TOW/HAUL switch
to select TOW/HAUL mode. This will
improve performance and reduce the
potential for transmission overheating
or failure due to excessive shifting.
When operating in TOW/HAUL
mode, transmission upshifts are
delayed, and the transmission will
automatically downshift (for engine
braking) during steady braking
maneuvers.
• The “TOW/HAUL Indicator Light” will illuminate in the instrument cluster to
indicate that TOW/HAUL mode has
been activated. Pressing the switch a
second time restores normal
operation. If the TOW/HAUL mode is
desired, the switch must be pressed
each time the engine is started.
RECREATIONAL
TOWING (BEHIND
MOTORHOME, ETC.)
Two-Wheel Drive Models
•Recreational towing is not
allowed.
Quadra-Trac I®(Single-Speed
Transfer Case) Four-Wheel
Drive Models
• Recreational towing is not
allowed. This model does not have
a NEUTRAL position in the transfer
case.
Quadra–Trac II®/Quadra–
Drive®II /Selec- Terrain™
Four-Wheel Drive Models
NOTE: The transfer case must be in the
NEUTRAL position, and the transmission
must be in the PARK position for
recreational towing.
Shifting Into NEUTRAL• Use the following procedure to prepare your vehicle for recreational
towing.
• Bring the vehicle to a complete stop and shift the transmission to PARK.
Turn the engine off.
• For vehicles with Keyless Enter-N-Go, remove the Keyless Enter-N-Go button
and use the Key Fob to complete this
procedure.
• Turn the ignition switch to the ON/RUN position, but do not start the
engine.
• Press and hold the brake pedal and shift the transmission into NEUTRAL.
TOW/HAUL Switch
UTILITY
61

• Using a ballpoint pen or similarobject, press and hold the recessed
transfer case N (Neutral) button for
four seconds, until the light next to the
N symbol starts to blink, indicating
shift in progress. The light will stop
blinking (stay on solid) when the shift
to N (Neutral) is complete. A “FOUR
WHEEL DRIVE SYSTEM IN NEUTRAL”
message will display on the EVIC
(Electronic Vehicle Information Center).
• Start the engine and shift the transmission into REVERSE.
• Release the brake pedal for five seconds and ensure that there is no
vehicle movement.
• Turn the engine off and firmly apply the parking brake.
• Shift the transmission into PARK and remove the Key Fob.
• Attach the vehicle to the tow vehicle using a suitable tow bar and release
the parking brake.
NOTE: Vehicles equipped with
Quadra-Lift™ must be lowered to the
“Park” (lowest) level, and have automatic
leveling disabled, before tying them down
(from the body) on a trailer or a flatbed
truck. Refer to “Quadra-Lift™” in
“Off-Road Capabilities” for more
information. If the vehicle cannot be
lowered to the “Park” level (for example,
engine will not run), tie-downs must be
fastened to the axles (not the body). Failure
to follow these instructions may cause fault
codes to be set and/or loss of proper
tie-down tension.CAUTION!
• Towing with the rear wheels on the ground will cause severe
transmission damage. Damage
from improper towing is not
covered under the New Vehicle
Limited Warranty.
• Front or rear wheel lifts should not be used. Internal damage to the
transmission or transfer case will
occur if a front or rear wheel lift is
used when recreational towing.
• It is necessary to follow these steps to be certain that the transfer case
is fully in NEUTRAL before
recreational towing to prevent
damage to internal parts.
WARNING!
You or others could be injured if you
leave the vehicle unattended with the
transfer case in the NEUTRAL position
without first fully engaging the
parking brake. The transfer case
NEUTRAL position disengages both
the front and rear driveshafts from the
powertrain and will allow the vehicle
to move even if the transmission is in
PARK. The parking brake should
always be applied when the driver is
not in the vehicle.
UTILITY
62

24-HOUR TOWING ASSISTANCE
• Dial toll-free 1-800-521-2779 or 1-800-363-4869 for Canadian residents.
• Provide your name, vehicle identification number and license plate number.
• Provide your location, including telephone number, from which you are calling.
• Briefly describe the nature of the problem and answer a few simple questions.
• You will be given the name of the service provider and an estimated time of arrival. Ifyou feel you are in an “unsafe situation”, please let us know. With your consent, we
will contact local police or safety authorities.
INSTRUMENT CLUSTER WARNING LIGHTS
- Tire Pressure Monitoring System (TPMS) Light
• Each tire, including the spare (if provided), should be checked monthly, when coldand inflated to the inflation pressure recommended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure label. (If your vehicle has tires of a different
size than the size indicated on the vehicle placard or tire inflation pressure label, you
should determine the proper tire inflation pressure for those tires.)
• As an added safety feature, your vehicle has been equipped with a Tire Pressure Monitoring System (TPMS) that illuminates a low tire pressure telltale when one or
more of your tires is significantly under-inflated. Accordingly, when the low tire
pressure telltale illuminates, you should stop and check your tires as soon as possible,
and inflate them to the proper pressure. Driving on a significantly under-inflated tire
causes the tire to overheat and can lead to tire failure. Under-inflation also reduces
fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping
ability.
• IF THE LIGHT STARTS FLASHING INDICATING A LOW TIRE PRESSURE,
ADJUST THE AIR PRESSURE IN THE LOW TIRE TO THE AIR PRESSURE
SHOWN ON THE VEHICLE PLACARD OR TIRE INFLATION PRESSURE
LABEL LOCATED ON THE DRIVER'S DOOR. NOTE: AFTER INFLATION,
THE VEHICLE MAY NEED TO BE DRIVEN FOR 20 MINUTES BEFORE THE
FLASHING LIGHT WILL TURN OFF.
• Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even if under-inflation has not
reached the level to trigger illumination of the TPMS low tire pressure telltale.
• Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is
combined with the low tire pressure telltale. When the system detects a malfunction,
the telltale will flash for approximately one minute and then remain continuously
illuminated. This sequence will continue each time the vehicle is restarted as long as
the malfunction exists.
WHAT TO DO IN EMERGENCIES
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• When the malfunction indicator is illuminated, the system may not be able to detect orsignal low tire pressure as intended. TPMS malfunctions may occur for a variety of
reasons, including the installation of replacement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning properly. Always check the TPMS
malfunction telltale after replacing one or more tires or wheels on your vehicle, to
ensure that the replacement or alternate tires and wheels allow the TPMS to continue
to function properly.
CAUTION!
The TPMS has been optimized for the original equipment tires and wheels. TPMS
pressures and warning have been established for the tire size equipped on your
vehicle. Undesirable system operation or sensor damage may result when using
replacement equipment that is not of the same size, type, and/or style. Aftermarket
wheels can cause sensor damage. Do not use tire sealant from a can, or balance
beads if your vehicle is equipped with a TPMS, as damage to the sensors may
result.
BRAKE- Brake Warning Light
• The Brake Warning light illuminates when there is either a system malfunction or theparking brake is applied. If the light is on and the parking brake is not applied, it
indicates a possible brake hydraulic malfunction, brake booster problem or an
Anti-Lock Brake System problem.
• We recommend you drive to the nearest service center and have the vehicle serviced immediately.
WARNING!
Driving a vehicle with the red brake light on is dangerous. Part of the brake system
may have failed. It will take longer to stop the vehicle. You could have a collision.
Have the vehicle checked immediately.
- Malfunction Indicator Light (MIL)
• Certain conditions, such as a loose or missing gas cap, poor fuel quality, etc., mayilluminate the MIL after engine start. The vehicle should be serviced if the light stays on
through several typical driving cycles. In most situations, the vehicle will drive normally
and not require towing.
• If the MIL flashes when the engine is running, serious conditions may exist that could lead to immediate loss of power or severe catalytic converter damage. We
recommend you do not operate the vehicle. Have the vehicle serviced immediately.
WHAT TO DO IN EMERGENCIES
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- Electronic Stability Control (ESC) Activation/Malfunction
Indicator Light
• If the “ESC Activation/Malfunction Indicator Light” comes on continuously with the engine running, a malfunction has been detected in the ESC system. If this light
remains on after several ignition cycles, and the vehicle has been driven several miles
(kilometers) at speeds greater than 30 mph (48 km/h), we recommend you drive to
the nearest service center and have the vehicle serviced immediately.
• The “ESC Activation/Malfunction Indicator Light” starts to flash as soon as the tires lose traction and the ESC system becomes active. If the light begins to flash during
acceleration, ease up on the accelerator and apply as little throttle as possible. Be sure
to adapt your speed and driving to the prevailing road conditions. The light also
flashes when TCS is active. To improve the vehicle's traction when starting off in deep
snow, sand or gravel, it may be desirable to switch the ESC system to Partial Off
mode by momentarily pressing the ESC Off
switch located below the climate
controls, on the switch panel.
- Charging System Light
• This light shows the status of the electrical charging system. If the charging system light remains on, it means that the vehicle is experiencing a problem with the charging
system.
• We recommend you do not continue driving if the charging system light is on. Have the vehicle serviced immediately.
- Oil Pressure Warning Light
• This light indicates low engine oil pressure. If the light turns on while driving, stop thevehicle and shut off the engine as soon as possible. A chime will sound for four
minutes when this light turns on.
• We recommend you do not operate the vehicle or engine damage will occur. Have the vehicle serviced immediately.
- Anti-Lock Brake (ABS) Light
• This light monitors the Anti-Lock Brake System (ABS).
• If the light is not on during starting, stays on, or turns on while driving, werecommend you drive to the nearest service center and have the vehicle serviced
immediately.
- Electronic Throttle Control (ETC) Light
• This light informs you of a problem with the Electronic Throttle Control (ETC) system.
• If a problem is detected, the light will come on while the engine is running. Cycle theignition key when the vehicle has completely stopped and the shift lever is placed in
the PARK position; the light should turn off.
• If the light remains lit with the engine running, your vehicle will usually be drivable; however, see an authorized service center immediately. If the light is flashing when the
engine is running, immediate service is required and you may experience reduced
performance, an elevated/rough idle or engine stall and your vehicle may require
towing.
WHAT TO DO IN EMERGENCIES
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- Airbag Warning Light
• If the light is not on during starting, stays on, or turns on while driving, have thevehicle serviced by an authorized service center immediately.
Fuel Cap/Loose Gas Cap Message
• If a “gas cap” message (shown as Check Gascap) appears, tighten the gas cap until a“clicking” sound is heard.
• If the message continues to appear for more than three days after tightening the gas cap, have the vehicle serviced by an authorized service center immediately.
Oil Change Indicator
Message
• If an “oil change” message (shown as Oil Change Required) appears and a single chime sounds, it is time for your next required oil change.
Vehicles Equipped With Keyless Enter-N-Go
• Without pressing the brake pedal, push the ENGINE START/STOP button and cycle the ignition to the ON/RUN position (Do not start the engine.)
• Fully depress the accelerator pedal, slowly, three times within 10 seconds.
• Without pressing the brake pedal, push the ENGINE START/STOP button once to return the ignition to the OFF/LOCK position.
Vehicles Not Equipped With Keyless Enter-N-Go
• Turn the ignition switch to the ON/RUN position (Do not start the engine.)
• Fully depress the accelerator pedal, slowly, three times within 10 seconds.
• Turn the ignition switch to the OFF/LOCK position.
WHAT TO DO IN EMERGENCIES
66

IF YOUR ENGINE OVERHEATS
• In any of the following situations, you can reduce the potential for overheating bytaking the appropriate action.
• On the highways — slow down.
• In city traffic — while stopped, shift transmission into NEUTRAL, but do not increase engine idle speed.
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 Fan 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.
• If the temperature reading does not return to normal, turn the engine off immediately.
• We recommend that you do not operate the vehicle or engine damage will occur. Have the vehicle serviced immediately.
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.
WHAT TO DO IN EMERGENCIES
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JACKING AND TIRE CHANGING
Jack Location
• The scissor-type jack and tire changing tools are located in the rear cargo area,below the load floor.
Spare Tire Stowage
• The spare tire is located under the load floor in the rear cargo area.
Preparations For Jacking
• Park on a firm, level surface. Avoid ice or slippery areas.
• Set the parking brake and shift the automatic transmission into PARK.
• Turn the ignition to LOCK and turn on the Hazard Warning flasher.
WHAT TO DO IN EMERGENCIES
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