2015 JEEP GRAND CHEROKEE traction control

•The shift lever/gear selector is removed from the
Drive position.
•The Electronic Stability Control/Traction Control Sys-
tem (ESC/TCS) activates.
•The vehicle parking brake is applied.
•Driver seatbelt is unbuckled at low speeds.
•Driver door is opened at low speeds.
•A Trailer Sway Control (TSC) event occurs.
•The driver switches ESC to full-off mode.
To Turn Off
The system will turn off and clear the set speed in
memory if:
•The Adaptive Cruise Control (ACC) ON/OFF button
is pressed.
•The Normal (Fixed Speed) Electronic Speed Control
ON/OFF button is pressed.
•The ignition is turned OFF.
•You switch to Four-Wheel Drive Low.
To Resume
If there is a set speed in memory press the RES (resume)
button and then remove your foot from the accelerator
pedal. The DID will display the last set speed.
NOTE:
•If your vehicle stays at standstill for longer than two
seconds, then the system will cancel and the brake
force will be ramped-out. The driver will have to apply
the brakes to keep the vehicle at a standstill.
•ACC cannot be resumed if there is a stationary vehicle
in-front of your vehicle in close proximity.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 199

To Cancel
The following conditions will cancel the Normal (Fixed
Speed) Electronic Speed Control without clearing the
memory:
•The brake pedal is applied.
•The CANCEL button is pressed.
•The Electronic Stability Control/Traction Control Sys-
tem (ESC/TCS) activates.
•The vehicle parking brake is applied.
•The braking temperature exceeds normal range (over-
heated).
•The shift lever/gear selector is removed from the
Drive position.
To Resume Speed
To resume a previously set speed, push the RES button
and release. Resume can be used at any speed above
20 mph (32 km/h).
To Turn Off
The system will turn off and erase the set speed in
memory if:
•The Normal (Fixed Speed) Electronic Speed Control
ON/OFF button is pressed.
•The ignition is turned off.
•You engage Four-Wheel Drive Low.
•The Adaptive Cruise Control (ACC) On/Off button is
pressed.
218 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

3. Without pushing the brake pedal, push and release the
ENGINE START/STOP button once to return the
ignition to the OFF/LOCK position.
NOTE:If the indicator message illuminates when you
start the vehicle, the oil change indicator system did not
reset. If necessary, repeat this procedure.
DID Messages
•Front Seatbelts Unbuckled
•Driver Seatbelt Unbuckled
•Passenger Seatbelt Unbuckled
•Service Airbag System
•Traction Control Off
•Washer Fluid Low
•Oil Pressure Low
•Oil Change Due
•Fuel Low
•Service Antilock Brake System
•Service Electronic Throttle Control
•Service Power Steering
•Cruise Off
•Cruise Ready
•ACC Override
•Cruise Set To XXX MPH
•Tire Pressure Screen With Low Tire(s) “Inflate Tire to
XX”
•Service Tire Pressure System
•Speed Warning Set
306 UNDERSTANDING YOUR INSTRUMENT PANEL

!BRAKE SYSTEM.......................472
!ELECTRONIC BRAKE CONTROL SYSTEM . . . .473
▫Anti-Lock Brake System (ABS)............473
▫Traction Control System (TCS)............475
▫Brake Assist System (BAS)...............475
▫Electronic Roll Mitigation (ERM)..........476
▫Electronic Stability Control (ESC)..........477
▫Trailer Sway Control (TSC)..............480
▫Hill Start Assist (HSA).................481
▫Ready Alert Braking — If Equipped........483
▫Rain Brake Support — If Equipped.........483
▫Hill Descent Control (HDC) — If Equipped
(Four-Wheel Drive Models With MP3023
Two-Speed Transfer Case Only)...........484
▫Selec Speed Control (SSC) — If Equipped
(Four-Wheel Drive Models With MP3023
Two-Speed Transfer Case Only)...........488
▫ESC Activation/Malfunction Indicator Light And
ESC OFF Indicator Light................491
!TIRE SAFETY INFORMATION.............493
▫Tire Markings........................493
▫Tire Identification Number (TIN)...........497
▫Tire Terminology And Definitions..........498
▫Tire Loading And Tire Pressure...........500
!TIRES — GENERAL INFORMATION........505
▫Tire Pressure........................505
▫Tire Inflation Pressures.................506
▫Tire Pressures For High Speed Operation . . . .508
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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.
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 Oper-
ating” 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
440 STARTING AND OPERATING

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 system.
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™ consists of the following positions:
•Snow– Tuning set for additional stability in inclement
weather. Use on and off road on loose traction surfaces
such as snow. When in Snow mode (depending on
certain operating conditions), the transmission may
use second gear (rather than first gear) during
Selec-Terrain™ Switch
448 STARTING AND OPERATING

launches, to minimize wheel slippage. If equipped
with air suspension, the default ride height for Snow is
NRH.
•Auto– Fully automatic full time four-wheel drive
operation can be used on and off road. Balances
traction with seamless steering feel to provide im-
proved handling and acceleration over two-wheel
drive vehicles. If equipped with air suspension, the
level will change to NRH.
•Sand– Off road calibration for use on low traction
surfaces such as sand or wet grass. Driveline is maxi-
mized 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. If equipped with air suspension, the
default ride height for Sand is NRH.
•Mud– Off road calibration for use on low traction
surfaces such as mud. 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. If equipped with air suspension, the level will
change to Off Road 1.
•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. Use for low speed
obstacles such as large rocks, deep ruts, etc. If
equipped with air suspension, the vehicle level will
change to Off-Road 2. If the Selec-Terrain™ switch is in
ROCK mode, and the transfer case is switched from
4WD Low to 4WD High, the Selec-Terrain™ system
will return to AUTO.
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STARTING AND OPERATING 449

entering. Proceed with caution and maintain a steady
controlled speed less than 5 mph (8 km/h) in deep water
to minimize wave effects.
Flowing Water
If the water is swift flowing and rising (as in storm
run-off), avoid crossing until the water level recedes
and/or the flow rate is reduced. If you must cross
flowing water avoid depths in excess of 9 inches (23 cm).
The flowing water can erode the streambed, causing your
vehicle to sink into deeper water. Determine exit point(s)
that are downstream of your entry point to allow for
drifting.
Standing Water
Avoid driving in standing water deeper than 20 inches
(51 cm), and reduce speed appropriately to minimize
wave effects. Maximum speed in 20 inches (51 cm) of
water is less than 5 mph (8 km/h).
Maintenance
After driving through deep water, inspect your vehicle
fluids and lubricants (engine oil, transmission oil, axle,
transfer case) to assure the fluids have not been contami-
nated. Contaminated fluid (milky, foamy in appearance)
should be flushed/changed as soon as possible to pre-
vent component damage.
Driving In Snow, Mud And Sand
In heavy snow, when pulling a load, or for additional
control at slower speeds, shift the transmission to a low
gear and shift the transfer case to 4WD LOW if necessary.
Refer to “Four-Wheel Drive Operation” in “Starting and
Operating” for further information. Do not shift to a
lower gear than necessary to maintain forward motion.
Over-revving the engine can spin the wheels and traction
will be lost.
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