2012 JEEP GRAND CHEROKEE transfer case

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
84

Shifting Procedures
4WD HI To 4WD LOW• With the vehicle at speeds of 0 to 3 mph (0 to 5 km/h), the ignition switch in the ON/RUN position or the engine running, shift the
transmission into NEUTRAL, and press the “4WD LOW” button once on
the transfer case switch. The “4WD LOW” indicator light in the
instrument cluster will begin to flash and remain on solid when the shift
is complete.
4WD LOW To 4WD HI • With the vehicle at speeds of 0 to 3 mph (0 to 5 km/h), the ignition switch in the ON/RUN position or the engine running, shift the
transmission into NEUTRAL, and press the “4WD LOW” button once on
the transfer case switch. The “4WD LOW” indicator light in the
instrument cluster will flash and turn off when the shift is complete.
NOTE:
• If the shift conditions/interlocks are not met, or a transfer case motor temperature protection exists, a “For 4x4 Low Slow Below 5 MPH or 8 KPH
Put Trans in N Press 4 Low” message will flash on the Electronic Vehicle
Information Center (EVIC).
• Shifting into or out of 4WD LOW is possible with the vehicle completely stopped; however, d ifficulty may occur due to the mating clutch teeth not
being properly aligned. Several attempts may be required for clutch teeth
alignment and shift completion to occur. The preferred method is with the
vehicle rolling 0 to 3 mph (0 to 5 km/h). If the vehicle is moving faster than
3 mph (5 km/h), the transfer case will not allow the shift.
NEUTRAL Shift Procedure
• Turn the ignition switch to the ON/RUN position, engine off.
• Vehicle stopped, with foot on brake.
• Place the transmission into NEUTRAL.
• Press and hold the NEUTRAL button located near the 4WD mode control knob with a pen or similar object for four seconds. The indicator light will
begin to flash indicating the shift is in progress. The light will stop
blinking (stay on solid) when the NEUTRAL shift is complete. A “4WD
SYSTEM IN NEUTRAL” message will display on the Electronic Vehicle
Information Center (EVIC).
• Repeat these Steps to shift out of NEUTRAL.
OFF-ROAD CAPABILITIES
85

• Park Mode (Lowers the vehicle 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 unattendedwith 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 vehiclefrom 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.
DOWN
PARK
OFF-ROAD CAPABILITIES
88

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

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 beapplied when the driver is not in
the vehicle.
UTILITY
92

ComponentFluid, Lubricant, or Genuine
Part Capacities
Transfer Case – 3.6L
Engine Shell Automatic Transmission
Fluid 3353 or equivalent.
—
Transfer Case – 5.7L
Engine MOPAR® ATF+4® Automatic
Transmission Fluid or
equivalent licensed ATF+4®
product. —
Transfer Case – 6.4L
Engine MOPAR® NV146 Transfer Case
Fluid or equivalent.
—
Axle Differential
(Front/Rear) We recommend you use
MOPAR® GL-5 Synthetic Axle
Lubricant SAE 75W-85. —
Axle Differential (Rear)
5.7L Engine With
Electronic Limited-Slip
Differential (ELSD) We recommend you use
MOPAR® GL-5 Synthetic Axle
Lubricant SAE 75W-85 with
friction modifier additive.
—
Axle Differential (Rear)
5.7L Engine Without
Electronic Limited-Slip
Differential (ELSD) We recommend you use
MOPAR® GL-5 Synthetic Axle
Lubricant SAE 75W-85.
—
Brake Master Cylinder MOPAR® DOT 3 and SAE J1703 should be used or equivalent. If
DOT 3 is not available, then
DOT 4 is acceptable. Use only
recommended brake fluids. —
Power Steering
Reservoir – 3.6L Engine MOPAR® Hydraulic Fluid or
equivalent meeting MS-11655,
such as Fuchs EG ZH 3044 or
Pentosin CHF 11s. —
Power Steering
Reservoir – 5.7L, 6.4L
Engine MOPAR® Power Steering Fluid
+4, MOPAR® ATF+4® Automatic
Transmission Fluid or
equivalent licensed ATF+4®
product.
Fuel Selection 3.6L,
5.7L 87 Octane acceptable.
89 Octane recommended for
5.7L. 24.6 Gallons
(93 Liters)
(Approximate)
Fuel Selection 6.4L Premium Unleaded 91 Octane Only or Higher.
E-85 Flexible Fuel – 3.6L Engine Only
CAUTION!
Only vehicles with the E-85 fuel filler door label or a yellow gas cap
can operate on E-85.
• Refer to your Owner's Manual on the DVD for further details.
MAINTAINING YOUR VEHICLE
120

MAINTENANCE CHART
Miles:
8,000 16,000 24,000 32,000 40,000 48,000 56,000 64,000 72,000 80,000 88,000 96,000 104,000
Or Months: 6 12 18 24 30 36 42 48 54 60 66 72 78
Or Kilometers:
13,000 26,000 39,000 52,000 65,000 78,000 91,000 104,000 117,000 130,000 143,000 156,000
169,000
Change the engine oil and engine oil filter. XXXXXXXXXXXXX
Rotate the tires, rotate at the first sign of ir-
regular wear, even if it occurs before scheduled
maintenance. XXXXXXXXXXXXX
If using your vehicle for any of the following:
dusty or off-road conditions. Inspect the en-
gine air cleaner filter; replace if necessary. XXX
Inspect the brake linings; replace if necessary. XXXXXX
InspecttheCVjoints. XXXX
Inspecttheexhaustsystem. XXXXX
Inspect the transfer case fluid and change if
necessary. XXX
Adjust the parking brake on vehicles equipped
with four wheel disc brakes. XXX
Change the automatic transmission fluid and
filter if using your vehicle for any of the follow-
ing: police, taxi, fleet or frequent trailer towing. X
Inspect the front and rear axle fluid, change if
necessary. XXXX
Inspect front suspension, tie rod ends, and
boot seals, for cracks or leaks and all parts for
damage, wear, improper looseness or end play;
replace if necessary. XXXXXX
Replace the engine air cleaner. X X X
Replace the air conditioning filter. XXXXXX
Replace the spark plugs (5.7L engine) XXX
Replace the spark plugs (3.6L engine) X
MAINTAINING YOUR VEHICLE
121