wheel torque JEEP GRAND CHEROKEE 2016 WK2 / 4.G Owners Manual

Service 4WD Indicator Light — If Equipped
Yellow TelltaleLight What It Means
Service 4WD Indicator Light
If the light stays on or comes on during driving, it means that the 4WD system is not function-
ing properly and that service is required. We recommend you drive to the nearest service center
and have the vehicle serviced immediately.
4WD Low Indicator Light — If Equipped
Yellow Telltale
Light What It Means
4WD Low Indicator Light
This light alerts the driver that the vehicle is in the four-wheel drive LOW mode. The front
and rear driveshafts are mechanically locked together forcing the front and rear wheels to
rotate at the same speed. Low range provides a greater gear reduction ratio to provide
increased torque at the wheels.
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The amount of directional torque the steering system can
apply to the steering wheel to correct for vehicle lane
departure can be set at Low, Medium or High. To make
your selection, touch the “Lane Departure Warning”
soft-key until a check-mark appears next to setting,
indicating that the setting had been selected. Touch the
back arrow soft-key to return to the previous menu.
•Rear ParkSense Chime Volume
The Rear ParkSense Chime Volume settings can be se-
lected from the DID or Uconnect System — if equipped.
The chime volume settings include LOW, MEDIUM, and
HIGH. The factory default volume setting is MEDIUM.
To make your selection, press the “ParkSense Rear Chime
Volume” button on the touchscreen, indicating that the
setting had been selected. ParkSense will retain its last
known configuration state through ignition cycles. •
Rear ParkSense Braking Assist
To make your selection, press the “Rear ParkSense Brak-
ing Assist” button on the touchscreen, indicating that the
setting had been selected.
NOTE: When this feature is selected, the ParkSense
system will detect objects located behind the vehicle and
utilize autonomous braking to help stop the vehicle (only
enabled when ParkSense is also on). Refer to “ParkSense
Rear Braking Assist” in “Understanding The Features Of
Your Vehicle” for system function and operating infor-
mation.
• Blind Spot Alert
When this feature is selected, the Blind Spot Alert feature
Provides alerts, visual and/or audible, to indicate objects
in your blind spot. The Blind Spot Alert feature can be
activated in “Lights” mode. When this mode is selected,
the Blind Spot Monitor (BSM) system is activated and
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•Lane Departure Warning (LDW) Strength —
If Equipped
When this feature is selected, it sets the strength of the
steering wheel feedback for potential lane departures.
The amount of directional torque the steering system can
apply to the steering wheel to correct for vehicle lane
departure can be set at Low, Medium or High. To make
your selection, touch the “Lane Departure Warning”
soft-key until a check-mark appears next to setting,
indicating that the setting had been selected. Touch the
back arrow soft-key to return to the previous menu.
• ParkSense
The ParkSense system will scan for objects behind the
vehicle when the transmission shift lever is in REVERSE
and the vehicle speed is less than 11 mph (18 km/h). It
will provide an alert (audible and/or visual) to indicate
the proximity to other objects. The system can be enabled
with Sound Only, or Sound and Display. To change the ParkSense status, press and release the “Sound” or
“Sound and Display” button. Refer to “ParkSense” in
“Understanding The Features Of Your Vehicle” for sys-
tem function and operating information.
CAUTION!
•
ParkSense is only a parking aid and it is unable to
recognize every obstacle, including small obstacles.
Parking curbs might be temporarily detected or not
detected at all. Obstacles located above or below
the sensors will not be detected when they are in
close proximity.
• The vehicle must be driven slowly when using
ParkSense in order to be able to stop in time when
an obstacle is detected. It is recommended that the
driver looks over his/her shoulder when using
ParkSense.
378 UNDERSTANDING YOUR INSTRUMENT PANEL

FOUR-WHEEL DRIVE OPERATION
Quadra-Trac I Operating Instructions/Precautions
— If Equipped
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.
NOTE:The Quadra-Trac I system is not appropriate for
conditions where 4WD LOW range is recommended.
Refer to “Off-Road Driving Tips” in “Starting And Op-
erating” for further information.
Quadra-Trac II Operating Instructions/Precautions
— If Equipped
The Quadra-Trac II transfer case is fully automatic in the
normal driving 4WD AUTO mode. The Quadra-Trac 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 road surfaces only. Driving in the 4WD
LOW position on dry, hard-surfaced roads may cause
increased tire wear and damage to driveline components.
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NEUTRAL
This range disengages the driveline from the powertrain.
It is to be used for flat towing behind another vehicle.
Refer to “Recreational Towing” in “Starting And Operat-
ing” for further information.
WARNING!
You or others could be injured or killed if you leave
the vehicle unattended with the power transfer unit
in the NEUTRAL (N) position without first fully
engaging the parking brake. The NEUTRAL (N)
position disengages both the front and rear drive-
shafts from the powertrain and will allow the vehicle
to roll, even if the automatic transmission is in PARK
(or manual transmission is in gear). The parking
brake should always be applied when the driver is
not in the vehicle.
4WD LOW
This range is for low speed four-wheel drive. It provides
an additional gear reduction which allows for increased
torque to be delivered to both the front and rear wheels
while providing maximum pulling power for loose,
slippery road surfaces only. Do not exceed 25 mph
(40 km/h).
NOTE:Refer to “Selec-Terrain – If Equipped” for further
information on the various positions and their intended
usages.
Shifting Procedures
4WDHITo4WDLOW
With the vehicle at speeds of 0 to 3 mph (0 to 5 km/h),
the ignition switch in the ON position or the engine
running, shift the transmission into “N”, and push
the “4WD LOW” button once on the transfer case switch.
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Quadra-Drive II System — If Equipped
The optional Quadra-Drive II System features two torque
transfer couplings. The couplings include an Electronic
Limited-Slip Differential (ELSD) rear axle and the
Quadra-Trac II transfer case. The optional ELSD axle is
fully automatic and requires no driver input to operate.
Under normal driving conditions, the unit functions as a
standard axle, balancing torque evenly between left and
right wheels. With a traction difference between left and
right wheels, the coupling will sense a speed difference.
As one wheel begins to spin faster than the other, torque
will automatically transfer from the wheel that has less
traction, to the wheel that has traction. While the transfer
case and axle coupling differ in design, their operation is
similar. Follow the Quadra-Trac II transfer case shifting
information, preceding this section, for shifting this sys-
tem.
SELEC-TERRAIN — IF EQUIPPED
Description
Selec-Terrain combines the capabilities of the vehicle
control systems, along with driver input, to provide the
best performance for all terrains.
Selec-Terrain Switch
486 STARTING AND OPERATING

•Inspect the radiator for mud and debris and clean as
required.
• Check threaded fasteners for looseness, particularly on
the chassis, drivetrain components, steering, and sus-
pension. Retighten them, if required, and torque to the
values specified in the Service Manual.
• Check for accumulations of plants or brush. These
things could be a fire hazard. They might hide damage
to fuel lines, brake hoses, axle pinion seals, and
propeller shafts.
• After extended operation in mud, sand, water, or
similar dirty conditions, have the radiator, fan, brake
rotors, wheels, brake linings, and axle yokes inspected
and cleaned as soon as possible.WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might
not have full braking power when you need it to
prevent a collision. If you have been operating your
vehicle in dirty conditions, get your brakes checked
and cleaned as necessary.
• If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a
wheel imbalance and freeing the wheels of it will
correct the situation.
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In the event power assist is lost for any reason (i.e.,
repeated brake applications with the engine off) the
brakes will still function. However, the effort required to
brake the vehicle will be much greater than that required
with the power system operating.
ELECTRONIC BRAKE CONTROL SYSTEM
Your vehicle is equipped with an advanced Electronic
Brake Control system (EBC). This system includes Elec-
tronic Brake Force Distribution (EBD), Anti-Lock Brake
System (ABS), Brake Assist System (BAS), Hill Start
Assist (HSA), Traction Control System (TCS), Electronic
Stability Control (ESC), and Electronic Roll Mitigation
(ERM). These systems work together to enhance both
vehicle stability and control in various driving condi-
tions.
Your vehicle may also be equipped with Trailer Sway
Control (TSC), Ready Alert Braking (RAB), Rain BrakeSupport (RBS), Dynamic Steering Torque (DST), Hill
Descent Control (HDC), and Selec-Speed Control (SSC).
Electronic Brake Force Distribution (EBD)
This function manages the distribution of the braking
torque between the front and rear axles by limiting
braking pressure to the rear axle. This is done to prevent
overslip of the rear wheels to avoid vehicle instability,
and to prevent the rear axle from entering ABS before the
front axle.
Brake System Warning Light
The red “Brake System Warning Light” will turn on when
the ignition switch is turned to the ON position and may
stay on for as long as four seconds.
If the “Brake System Warning Light” remains on or
comes on while driving, it indicates that the brake system
is not functioning properly and that immediate service is
required. If the “Brake System Warning Light” does not
508 STARTING AND OPERATING

Traction Control System (TCS)
This system monitors the amount of wheel spin of each of
the driven wheels. If wheel spin is detected, the TCS may
apply brake pressure to the spinning wheel(s) and/or
reduce engine power to provide enhanced acceleration
and stability. A feature of the TCS, Brake Limited Differ-
ential (BLD), functions similar to a limited slip differen-
tial and controls the wheel spin across a driven axle. If
one wheel on a driven axle is spinning faster than the
other, the system will apply the brake of the spinning
wheel. This will allow more engine torque to be applied
to the wheel that is not spinning. BLD may remain
enabled even if TCS and ESC are in a reduced mode.
Electronic Stability Control (ESC)
This system enhances directional control and stability of
the vehicle under various driving conditions. ESC cor-
rects for oversteering or understeering of the vehicle by
applying the brake of the appropriate wheel(s) to assist incounteracting the oversteer or understeer condition. En-
gine power may also be reduced to help the vehicle
maintain the desired path.
ESC uses sensors in the vehicle to determine the vehicle
path intended by the driver and compares it to the actual
path of the vehicle. When the actual path does not match
the intended path, ESC applies the brake of the appro-
priate wheel to assist in counteracting the oversteer or
understeer condition.
•
Oversteer - when the vehicle is turning more than
appropriate for the steering wheel position.
• Understeer - when the vehicle is turning less than
appropriate for the steering wheel position.
The “ESC Activation/Malfunction Indicator Light” lo-
cated in the instrument cluster will start to flash as soon
as the ESC system becomes active. The “ESC Activation/
Malfunction Indicator Light” also flashes when the TCS
is active. If the “ESC Activation/Malfunction Indicator
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Dynamic Steering Torque (DST)
Dynamic Steering Torque is a feature of the ESC and EPS
modules that provides torque at the steering wheel for
certain driving conditions in which the ESC module is
detecting vehicle instability. The torque that the steering
wheel receives is only meant to help the driver realize
optimal steering behavior in order to reach/maintain
vehicle stability. The only notification the driver receives
that the feature is active is the torque applied to the
steering wheel.
NOTE:The DST feature is only meant to help the driver
realize the correct course of action through small torques
on the steering wheel, which means the effectiveness of
the DST feature is highly dependent on the drivers
sensitivity and overall reaction to the applied torque. It is
very important to realize that this feature will not steer
the vehicle, meaning the driver is still responsible for
steering the vehicle.
Hill Descent Control (HDC) — If Equipped
HDC is intended for low speed off road driving while in
4WD Low Range. HDC maintains vehicle speed while
descending hills during various driving situations. HDC
controls vehicle speed by actively controlling the brakes.
HDC has three states:
1. Off (feature is not enabled and will not activate).
2. Enabled (feature is enabled and ready but activation conditions are not met, or driver is actively overriding
with brake or throttle application).
3. Active (feature is enabled and actively controlling vehicle speed).
Enabling HDC
HDC is enabled by pushing the HDC switch, but the
following conditions must also be met to enable HDC:
• Driveline is in 4WD Low Range
• Vehicle speed is below 5 mph (8 km/h).
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