2012 JEEP GRAND CHEROKEE traction control

Remove your foot from the accelerator pedal. If
you do not, the vehicle may continue to accel-
erate beyond the set speed. If this occurs:
•The message “DRIVER OVERRIDE” will dis-
play in the EVIC.
• The system will not be controlling the dis-
tance between your vehicle and the vehicle
ahead. The vehicle speed will only be deter-
mined by the position of the accelerator
pedal.To CancelThe system will disable ACC without erasing
the memory if:
•You softly tap the brake pedal.
• You depress the brake pedal.
• You press the CANCEL switch.
• An Anti-Lock Brake System (ABS) event oc-
curs.
• A Trailer Sway Control (TSC) event occurs.
• If the transmission is shifted into NEUTRAL.
• The Electronic Stability Control/Traction Con-
trol System (ESC/TCS) activates.
NOTE:
If ACC is resumed or set with the ESC/TCS
off, ESC will automatically be re-engaged.
To Turn OffThe system will turn off and erase the set speed
in memory if:
• You push the ON/OFF button.
• You turn OFF the ignition.
• You switch to Four-Wheel Drive Low.
To Resume SpeedPress the RES +button and release. Then
remove your foot from the accelerator pedal.
The EVIC will display the last set speed.Driver Override
Adaptive Cruise Control Cancelled
120

To Vary The Speed Setting
There are two ways to change the set speed:
•Use the accelerator pedal to adjust the ve-
hicle to the desired speed and press the SET
-button.
• Tap the RES +or SET -button to increase or
decrease the set speed in 0.6 mph (1 km/h)
increments respectively. Hold the RES +or
SET -button for 6 mph (10 km/h) increments.
To Cancel
The system will disable normal Cruise Control
without erasing the memory if:
• You softly tap or depress the brake pedal.
• You press the CANCEL button.
• The Electronic Stability Control/Traction Con-
trol System (ESC/TCS) activates.
To Resume
Press the RES +button and then remove your
foot from the accelerator pedal. The EVIC will
display the last set speed. To Turn Off
The system will turn off and erase the set speed
in memory if:
•
You push the ON/OFF button.
• You turn off the ignition.
• You engage Four-Wheel Drive Low.
If the Cruise Control system is turned off and
reactivated, the system will return to the last
driver setting (ACC or Normal Cruise Control).
Forward Collision Warning — If
Equipped
Forward Collision Warning (FCW) warns the
driver of a potential collision with the vehicle in
front of you and prompts the driver to take
action in order to avoid the collision.
FCW monitors the information from the forward
looking sensor as well as the Electronic Brake
Controller (EBC), wheel speed sensors, i.e., to
calculate a probable rear-end collision. When
the system determines that a rear-end collision
is probable a warning message (both audible
and visual) will be displayed on the EVIC. When
the system determines a collision with the ve- hicle in front of you is no longer probable, the
warning message will be deactivated.
When entering or driving in a curve, the FCW
alerts may be triggered on objects other than
vehicles such as guard rails or sign posts
based on the course prediction. This is ex-
pected and is a part of normal FCW activation
and functionality.
NOTE:
The minimum speed for FCW activation is
10 mph (16 km/h).
FCW Message
129

Display Settings
When watching a video source (DVD Video with
the disc in Play mode, Aux Video, etc.), press-
ing the remote control’s SETUP button activates
the Display Settings menu. These settings con-
trol the appearance of the video on the screen.
The factory default settings are already set for
optimum viewing, so there is no need to
change these settings under normal circum-
stances.
To change the settings, press the remote con-
trol’s navigation buttons (,) to select an
item, then press the remote control’s navigation
buttons (, ) to change the value for the
currently selected item. To reset all values back to the original settings, select the Default Set-
tings menu option and press the remote con-
trol’s ENTER button.
Disc Features control the remote DVD player’s
(if equipped) settings of DVD being watched in
the remote player.
Listening To Audio With The Screen
Closed
To listen to only audio portion of the channel
with the screen closed:
•
Set the audio to the desired source and
channel.
• Close the video screen.
• To change the current audio mode, press the
remote control’s MODE button. This will au-
tomatically select the next available audio
mode without using the Mode Select menu.
• When the screen is reopened, the video
screen will automatically turn back on and
show the appropriate display menu or me-
dia.
If the screen is closed and there is no audio
heard, verify that the headphones are turned on (the ON indicator is illuminated) and the head-
phone selector switch is on the desired channel.
If the headphones are turned on, press the
remote control’s power button to turn audio on. If
audio is still not heard, check that fully charged
batteries are installed in the headphones.
Why Does The Screen Mode Change
Automatically?
In order to make the operation of the VES™
simple and with the least amount of driver
distraction, specific events will cause the
screen(s) to automatically switch to DVD mode.
These events are:
•
Loading a disc in the DVD player (if so
equipped),
• Pressing the PLAY button on the DVD player
faceplate when the disc is stopped or
paused, or
• AM/FM band selection via Radio.
If your vehicle is not equipped with the sepa-
rate DVD player, the following events in the
Radio will cause the screen(s) to automatically
switch to Radio Disc mode.
• Loading a disc in the radio CD/DVD player
Figure 10: Video Screen Display Settings
202

•After Driving Off-Road ..................... 241
• POWER STEERING ......................... 242
• 3.6L And 5.7L Engine ...................... 242
• 3.0L Diesel Engine ....................... 242
• Power Steering Fluid Check .................. 243
• MULTI-DISPLACEMENT SYSTEM (MDS)
(IF EQUIPPED) — 5.7L ENGINE ONLY .............. 244
• PARKING BRAKE .......................... 244
• ELECTRONIC BRAKE CONTROL SYSTEM ........... 245
• Anti-Lock Brake System (ABS) ................ 245
• Traction Control System (TCS) ................ 246
• Brake Assist System (BAS) .................. 246
• Electronic Roll Mitigation (ERM) ............... 246
• Electronic Stability Control (ESC) .............. 247
• Trailer Sway Control (TSC) .................. 248
• Hill Start Assist (HSA) ..................... 249
• Ready Alert Braking ...................... 250
• Rain Brake Support ....................... 250
• Hill Descent Control (HDC) — Four-Wheel Drive Models
With MP3023 Two-Speed Transfer Case Only ........ 250
• ESC Activation/Malfunction Indicator Light and ESC OFF
Indicator Light .......................... 251
213

4. Hold down the NEUTRAL “pin” switch (with
a pen, etc.) for four seconds until the LED light
by the switch starts to blink indicating shift in
progress. The light will stop blinking (stay on
solid) when the NEUTRAL shift is complete.
5. Repeat Steps 1 to 4 to shift out of NEUTRAL.
NOTE:
If shift conditions/interlocks are not met, a
“To Tow Vehicle Safely, Read Neutral Shift
Procedure in Owners Manual” message will
flash from the Electronic Vehicle Informa-
tion Center (EVIC). Refer to “Electronic Ve-hicle Information Center (EVIC)” in “Under-
standing Your Instrument Panel” for further
information.
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 trans-
fer case. The optional ELSD axle is fully auto-
matic and requires no driver input to operate.
Under normal driving conditions, the unit func-
tions 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 differ-
ence. 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 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.
Neutral Switch
Selec-Terrain™ Switch
234

Selec-Terrain™ consists of the following posi-
tions:
•Sport – Dry weather, on-road calibration.
Only available in 4WD High range. Perfor-
mance based tuning that provides a rear
wheel drive feel but with improved handling
and acceleration over a two-wheel drive ve-
hicle. The Electronic Stability Control will set
to allow more driver control of vehicle while
maintaining safe handling controls. The ve-
hicle will lower (if equipped with Air Suspen-
sion) to Aero Mode in High Range. 4WD Low
is not available in SPORT mode, if 4WD Low
is selected the Selec-Terrain™ will automati-
cally switch back to AUTO.
• 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 oper-
ating conditions), the transmission may use
second gear (rather than first gear) during
launches, to minimize wheel slippage. If equipped with air suspension, the level will
change to Normal Ride Height (NRH) if the
transfer case is in high range. The level will
change to Off-Road 1 if the transfer case is in
Low range.
• Auto – Fully automatic full time four-wheel
drive operation can be used on and off road.
Balances traction with seamless steering
feel to provide improved handling and accel-
eration over two-wheel drive vehicles. If
equipped with air suspension, the level will
change to NRH.
• Sand/Mud – Off road calibration for use on
low traction surfaces such as mud, sand, or
wet grass. Driveline is maximized for trac-
tion. Some binding may be felt on less for-
giving surfaces. The electronic brake con-
trols 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. Activate the Hill
Descent Control for steep downhill control.
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.
Electronic Vehicle Information
Center (EVIC) Display Messages
When the appropriate conditions exist, a mes-
sage will appear in the EVIC display. Refer to
“Electronic Vehicle Information Center (EVIC)”
in “Understanding Your Instrument Panel” for
further information.
235

An advantage of the higher ground clearance
is a better view of the road, allowing you to
anticipate problems. They are not designed for
cornering at the same speeds as conventional
two-wheel drive vehicles any more than low-
slung sports cars are designed to perform
satisfactorily in off-road conditions. If at all
possible, avoid sharp turns or abrupt maneu-
vers. As with other vehicles of this type, failure
to operate this vehicle correctly may result in
loss of control or vehicle rollover.
OFF-ROAD DRIVING TIPS
NOTE:
Prior to off-road driving, remove the front air
dam to prevent damage. The front air dam is
attached to the lower front fascia with seven
quarter turn fasteners and can be removed
by hand.
Quadra-Lift™ – If EquippedWhen off-roading, it is recommended that the
lowest useable vehicle height that will clear the
current obstacle or terrain be selected. The
vehicle height should then be raised as re-
quired by the changes in terrain.
The Selec-Terrain™ switch will automatically
change the vehicle to the optimized height
based on the Selec-Terrain™ switch position.
The vehicle height can be changed from the
default height for each Selec-Terrain™ modeby normal use of the air suspension switches.
Refer to “Quadra-Lift™ – If Equipped” in “Start-
ing and Operating” for further information.
When To Use 4WD LOW Range – If
Equipped
When off-road driving, shift to 4WD LOW for
additional traction. This range should be limited
to extreme situations such as deep snow, mud,
or sand where additional low speed pulling
power is needed. Vehicle speeds in excess of
25 mph (40 km/h) should be avoided when in
4WD LOW range.
CAUTION!
Do not use 4WD LOW range when operating
the vehicle on dry pavement. Driveline hard-
ware damage can result.
Driving Through WaterAlthough your vehicle is capable of driving
through water, there are a number of precau-
tions that must be considered before entering
the water.
Front Air Dam
1 — Front Bumper
2 — Front Air Dam Fasteners
239

NOTE:
Your vehicle is capable of water fording in
up to 20 inches (51 cm) of water, while
crossing small rivers or streams. To main-
tain optimal performance of your vehicle’s
heating and ventilation system it is recom-
mended to switch the system into recircula-
tion mode during water fording.
CAUTION!
When driving through water, do not exceed
5 mph (8 km/h). Always check water depth
before entering, as a precaution, and check all
fluids afterward. Driving through water may
cause damage that may not be covered by the
New Vehicle Limited Warranty.
Driving through water more than a few inches/
centimeters deep will require extra caution to
ensure safety and prevent damage to your
vehicle. If you must drive through water, try to
determine the depth and the bottom condition
(and location of any obstacles) prior to enter-
ing. Proceed with caution and maintain a steady controlled speed less than 5 mph
(8 km/h) in deep water to minimize wave ef-
fects.
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 appro-
priately 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, trans-
mission oil, axle, transfer case) to assure the
fluids have not been contaminated. Contami-
nated fluid (milky, foamy in appearance) shouldbe flushed/changed as soon as possible to
prevent component damage.
Driving In Snow, Mud And SandIn 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 Oper-
ating” 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.
Avoid abrupt downshifts on icy or slippery
roads, because engine braking may cause
skidding and loss of control.
Hill Climbing
NOTE:
Before attempting to climb a hill, determine
the conditions at the crest and/or on the
other side.
Before climbing a steep hill,
shift the trans-
mission to a lower gear and shift the transfer
case to 4WD LOW. Use first gear and 4WD
LOW for very steep hills.
240