2014 JEEP GRAND CHEROKEE torque

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, which provides
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-Drive II®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 (8 km/h) Put Trans in
N Press 4 Low” message will flash from the Electronic Vehicle Information Center
(EVIC).
OFF-ROAD CAPABILITIES (4WD OPERATION)
122

Braking Distance
When selected, this screen displays the vehicle's braking distance and the speed at
which the brake pedal was depressed.
G-Force
When selected, this screen displays all four G-Force values (two lateral and two
longitudinal) as well as steering angle.
Gauges 1
• Oil Temperature
• Oil Pressure
• Battery Voltage
Gauges 2
• Coolant Temperature
• Transmission Temperature
• Intake Air Temperature
Engine
When selected, this screen displays miles per hour (mph), horsepower (hp), torque
(ft/lb), oil pressure (psi) and gear selector values.
Options
When selected, this screen allows you to choose a standard or custom display for your
SRT home page.
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 recommended 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.
SRT
140

System Overview
This vehicle is equipped with a Diesel Exhaust Fluid (DEF) injection system and a
Selective Catalytic Reduction (SCR) catalyst to meet the emission requirements.
The DEF injection system consists of the following components:
• DEF tank
• DEF pump
• DEF injector
• Electronically-heated DEF lines• NOx sensors
• Temperature sensors
• SCR catalyst
The DEF injection system and SCR catalyst enable the achievement of diesel
emissions requirements; while maintaining outstanding fuel economy, drivability,
torque and power ratings.
NOTE:
• Your vehicle is equipped with a DEF injection system. You may occasionally hear
an audible clicking noise. This is normal operation.
• The DEF pump will run for a period of time after engine shutdown to purge the DEF
system. This is normal operation.
Adding Diesel Exhaust Fluid
The DEF gauge (located in the EVIC) will display the level of DEF remaining in the tank.
Completely fill the DEF tank through the diesel exhaust fluid fill location (located
behind the fuel door) at every maintenance interval or before if prompted by the
Electronic Vehicle Information Center (EVIC).
NOTE:
• The gauge may take up to five seconds
to update after adding a gallon or more
of Diesel Exhaust Fluid (DEF) to the
DEF tank. If you have a fault related to
the DEF system, the gauge may not
update to the new level. See your au-
thorized dealer for service.
• The DEF gauge may also not immedi-
ately update after a refill if the tem-
perature of the DEF fluid is below 12°F
(-11°C). The DEF line heater will pos-
sibly warm up the DEF fluid and allow
the gauge to update after a period of
run time. Under very cold conditions, it is possible that the gauge may not reflect
the new fill level for several drives.
DIESEL
147

Do not raise the vehicle until you are sure the jack is fully engaged.
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 pro-
vides maximum stability.
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.
9. Lower the vehicle by turning the jack
screw counterclockwise, and remove
the jack and wheel blocks.
10. Finish tightening the lug nuts. Push
down on the wrench while at the end
of the handle for increased leverage.
Tighten the lug nuts in a star pattern
until each nut has been tightened
twice. The correct wheel nut tight-
ness is 130 ft lbs (176 N·m). If in
doubt about the correct tightness,
have them checked with a torque
wrench by your authorized dealer or
at a service station.
11. Lower the jack to the fully closed position and return it and the tools to the
proper positions in the foam tray.
12. Remove the small center cap and securely store the road wheel in the cargo area.
13. Have the aluminum road wheel and
tire repaired as soon as possible,
properly secure the spare tire with
the special wing nut torqued to
3.7 ft-lbs (5 N·m), reinstall the jack
and tool kit foam tray, and latch the
rear load floor cover.
WHAT TO DO IN EMERGENCIES
162

Road Tire Installation
1. Mount the road tire on the axle.
2. Install the remaining lug nuts with the cone shaped end of the nut toward the
wheel. Lightly tighten the lug nuts.
3. Lower the vehicle to the ground by turning the jack handle counterclockwise.
4. Finish tightening the lug nuts. Push down on the wrench while at the end of the
handle for increased leverage. Tighten the lug nuts in a star pattern until each nut
has been tightened twice. The correct tightness of each lug nut is 130 ft/lbs
(176 N·m). If in doubt about the correct tightness, have them checked with a
torque wrench by your authorized dealer or service station.
5. After 25 miles (40 km) check the lug nut torque with a torque wrench to ensure
that all lug nuts are properly seated against the wheel.
CAUTION!
• Do not attempt to raise vehicle by jacking on locations other than those
indicated in the Jacking Instructions for this vehicle.
• 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.
WHAT TO DO IN EMERGENCIES
163