wheel JEEP GRAND CHEROKEE 2012 WK2 / 4.G Owner's Manual

QUADRA-TRAC I® FOUR-WHEEL DRIVE
Quadra-Trac I® Operating Instructions/Precautions - 3.6L Only
• The Quadra-Trac I® is a single-speed (HI range only) transfer case, whichprovides convenient full-time four-wheel drive. No driver interaction is
required. The Brake Traction Control (BTC) System, which combines
standard ABS and Traction Control, provides resistance to any wheel that
is slipping to allow additional torque transfer to wheels with traction.
QUADRA-TRAC II®/QUADRA-DRIVE II®
FOUR-WHEEL DRIVE
Quadra-Trac II®/Quadra-Drive II® Operating Instructions/
Precautions
• The Quadra-Trac II®/Quadra-DriveII® transfer case is fully automatic
in the normal driving 4WD HI
mode. The Quadra-Trac
II®/Quadra-Drive II® transfer case
provides three mode positions:
• 4WD HI
• NEUTRAL
• 4WD LOW
• This transfer case is fully automatic in the 4WD HI mode.
• When additional traction is required, the 4WD LOW position can be used to lock the front and rear driveshafts together and force the front and
rear wheels to rotate at the same speed. The 4WD LOW position is
intended for loose, slippery surfaces only. Driving in the 4WD LOW
position on dry, hard-surfaced roads may cause increased tire wear and
damage to driveline components.
• When operating your vehicle in 4WD LOW, the engine speed is approximately three times that of the 4WD HI position at a given road
speed. Take care not to overspeed the engine and do not exceed 25 mph
(40 km/h).
NOTE:
• If shift conditions/interlocks are not met, or a transfer case motor temperature protection condition exists, a “For 4x4 Low Slow Below
5 MPH or 8 KPH Put Trans in N Press 4 Low” message will flash from the
Electronic Vehicle Information Center (EVIC).
OFF-ROAD CAPABILITIES
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SELEC-TERRAIN™
• Selec-Terrain™ combines the capabilities of the vehicle control systems,along with driver input, to provide the best performance for all terrains.
Rotate the mode control knob to select the following Selec-Terrain™
positions: •Sport – Dry weather, on-road calibration. Only available in 4WD High
range. Performance-based tuning that provides a rear wheel drive feel
but with improved handling and acceleration over a two-wheel drive
vehicle. The Electronic Stability Control will set to allow more driver
control of the vehicle while maintaining safe handling controls. The
vehicle will lower (if equipped with Air Suspension) by 0.59 inches
(15 mm) in the SPORT mode.
• Snow – The Electronic Stability Control is set for additional stability in
inclement weather. Use on and off road on loose traction surfaces such
as snow.
• Auto – Fully automatic full-time four-wheel drive operation can be used
on and off road. Balances traction with steering feel to provide improved
handling and acceleration over two-wheel drive vehicles.
• Sand/Mud – Off-road calibration for use on low traction surfaces such as
mud, sand, or wet grass. Driveline is maximized for traction. Some
binding may be felt on less forgiving surfaces. The electronic brake
controls are set to limit traction control management of throttle and
wheel spin.
• Rock – Off-road calibration only available in 4WD Low range. The vehicle
is raised (if equipped with Air Suspension) for improved ground
clearance. Traction based tuning with improved steer-ability for use on
high traction off-road surfaces. Activates the Hill Descent Control for
steep downhill control. Use for low speed obstacles such as large rocks,
deep ruts, etc.
Quadra-Lift™
• The Quadra-Lift™ air suspension system provides full time load
leveling capability along with the
benefit of being able to adjust
vehicle height by the push of a
button. Quadra-Lift™ is available
with both Quadra-Trac II® and
Quadra-Drive II™.
• The system requires that the engine be running for all changes.
When lowering the vehicle all of
the doors, including the liftgate,
must be closed.
OFF-ROAD CAPABILITIES
86

TOW/HAUL MODE
• When driving in hilly areas, towing a trailer, 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.
TOW/HAUL Switch
UTILITY
90

• 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.
• Using a ballpoint pen or similar object, 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.
UTILITY
91

AUTOSTICK®
• AutoStick® is a driver-interactivetransmission feature that offers
manual gear shifting to provide
youwithmorecontrolofthe
vehicle. AutoStick® allows you to
maximize engine braking,
eliminate undesirable upshifts and
downshifts, and improve overall
vehicle performance.
• This system can also provide you with more control during passing,
city driving, cold slippery
conditions, mountain driving,
trailer towing, and many other
situations.
Operation
• When the shift lever is in the DRIVE position, the transmission willoperate automatically, shifting between the five available gears. To
engage AutoStick®, simply tap the shift lever to the right or left (+/-)
while in the DRIVE position, or tap one of the steering wheel-mounted
shift paddles (+/-). Tapping (-) to enter AutoStick® mode will downshift
the transmission to the next lower gear, while using (+) to enter
AutoStick® mode will retain the current gear. When AutoStick® is active,
the current transmission gear is displayed in the instrument cluster. In
AutoStick® mode, the transmission will shift up or down when (+/-) is
manually selected by the driver (using the shift lever, or the shift
paddles), unless an engine lugging or overspeed condition would result.
It will remain in the selected gear until another upshift or downshift is
chosen, except as described below:
• Normally, in AutoStick® mode, the transmission will automatically shift up when maximum engine speed is reached. If, h owever, AutoStick® is
engaged while in SPORT mode, the transmission will remain in the
selected gear even when maximum engine speed is reached. The
transmission will upshift only when commanded by the driver.
• The transmission will automatically downshift as the vehicle slows (to prevent engine lugging) and will display the current gear.
• The transmission will automatically downshift to first gear when coming to a stop. After a stop, the driver should manually upshift (+) the
transmission as the vehicle is accelerated.
• You can start out in first or second gear. Tapping (+) (at a stop) will allow starting in second gear. Starting out in second gear is helpful in
snowy or icy conditions.
• The system will ignore attempts to upshift at too low of a vehicle speed.
• Avoid using speed control when AutoStick® is engaged.
SRT8
93

• Transmission shifting will be more noticeable when AutoStick® isengaged.
• To disengage AutoStick® mode, hold the shift lever to the right or press and hold the (+) shift paddle until “D” is once again displayed in the
instrument cluster. You can shift in or out of the AutoStick® mode at any
time without taking your foot off the accelerator pedal.
WARNING!
Do not downshift for additional engine braking on a slippery surface.
The drive wheels could lose their grip and the vehicle could skid,
causing a collision or personal injury.
SELEC-TRACK™
• Selec-Track™ combines the capabilities of the vehicle control systems,along with driver input, to provide the best performance for all terrains.
• Rotate the mode control knob toselect the following Selec-Track™
positions:
• Sport – Dry weather, on-road
calibration. Performance based
tuning that provides a rear wheel
drive feel but with improved
handling and acceleration over a
two-wheel drive vehicle. The
active suspension system will be
in Semi Firm mode, and a green
flag will light up in the instrument
cluster.
• Snow – Tuning set for additional stability in inclement weather. Use on
and off road on loose traction surfaces such as snow.
• Auto – Fully automatic full time four-wheel drive operation can be used
on and off road. This position balances traction with seamless steering
feel to provide improved handling and acceleration over two-wheel
drive vehicles.
• Track – This position offers track road calibration for use on high
traction surfaces. Driveline is maximized for traction. Some binding may
be felt on less forgiving surfaces.
• To w – Use this mode for towing. Vehicle suspension will go to Firm
mode and peak power will be limited in the engine controls.
SRT8
94

Digital Speedometer• When selected, this screen displays vehicle speed and records top speed.
WARNING!
Measurement of vehicle statistics with the Performance Features is
intended for off-highway or off-road use only and should not be done
on any public roadways. It is rec ommended that these features be
used in a controlled environment and within the limits of the law. The
capabilities of the vehicle as measured by the performance pages
must never be exploited in a reckless or dangerous manner, which can
jeopardize the user’s safety or the safety of others. Only a safe,
attentive, and skillful driver can prevent accidents.
SUMMER/THREE-SEASON TIRES
• This vehicle may be equipped with wheels and tires to enhance traction in both wet and dry conditions.
• Summer tires are not intended to be driven in snow or on ice.
• Use summer tires only in sets of four.
NOTE: Summer tires will not contain the all season designation or
mountain/snowflake symbol on the sidewall of the tire.
WARNING!
Do not use summer tires in snow/ice conditions. You could lose
control, resulting in severe injury or death.
SRT8
96

• Your vehicle has also been equipped with a TPMS malfunction indicatorto 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.
• When the malfunction indicator is illuminated, the system may not be able to detect or signal 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.
NOTE: Tire pressures change by approximately 1 psi (7 kPa) per 12° F (7° C)
of air temperature change. Keep this in mind when checking tire pressure
inside a garage, especially in the Winter. Example: If garage temperature is
68°F (20°C) and the outside temperature is 32°F (0°C), then the cold tire
inflation pressure should be increased by 3 psi (21 kPa), which equals 1 psi
(7 kPa) for every 12°F (7°C) for this outside temperature condition.
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 the parking 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.
• Please have your 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.
WHAT TO DO IN EMERGENCIES
98

JACKING AND TIRE CHANGING
Run Flat Tires – SRT8 Only
• This vehicle is equipped with a compact spare along with run flat tires.Although the tires are designed with a “run flat” feature that allows the
vehicle to be driven approximately 50 miles (80 km) at 55 mph
(88 km/h). immediate service should be obtained.
NOTE:
The compact spare tire is to be used for rear wheel(s) only. For a flat
front tire, move the rear tire to the front and use the compact spare on the rear.
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.
• Do not tow a trailer when using the compact spare tire.
WHAT TO DO IN EMERGENCIES
102

Preparations For Jacking
1. Park the vehicle on a firm, level surface. Avoid ice or slippery surfaces.
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. For vehicle equipped with Quadra-Lift® refer to “Quadra-Lift — IfEquipped” in “Starting And Operating” on the DVD for further
information on disabling automatic leveling.
Block both the front and rear of the
wheel diagonally opposite of the
jacking 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.
Jacking Instructions
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.
WHAT TO DO IN EMERGENCIES
104