traction control JEEP COMPASS 2021 Owner handbook (in English)

72
(Continued)
SAFETY
SAFETY FEATURES
Anti-Lock Brake System (ABS)
The Anti-Lock Brake System (ABS) provides
increased vehicle stability and brake perfor-
mance under most braking conditions. The
system automatically prevents wheel lock,
and enhances vehicle control during braking.
The ABS performs a self-check cycle to
ensure that the ABS is working properly each
time the vehicle is started and driven. During
this self-check, you may hear a slight
clicking sound as well as some related motor
noises.
ABS is activated during braking when the
system detects one or more wheels begin to
lock. Road conditions such as ice, snow,
gravel, bumps, railroad tracks, loose debris,
or panic stops may increase the likelihood of
ABS activation(s).
You also may experience the following when
ABS activates:
The ABS motor noise (it may continue to
run for a short time after the stop)
The clicking sound of solenoid valves
Brake pedal pulsations
A slight drop of the brake pedal at the end
of the stop
These are all normal characteristics of ABS.
ABS is designed to function with the Original
Equipment Manufacturer’s tires. Modifica-
tion may result in degraded ABS perfor -
mance.
Anti-Lock Brake Warning Light
The yellow “Anti-Lock Brake Warning Light”
will turn on when the ignition is turned to the
ON/RUN mode and may stay on for as long
as four seconds.
If the “Anti-Lock Brake Warning Light”
remains on or comes on while driving, it indi -
cates that the anti-lock portion of the brake
system is not functioning and that service is
required. However, the conventional brake
system will continue to operate normally if
the “Anti-Lock Brake Warning Light” is on.
WARNING!
The ABS contains sophisticated elec-
tronic equipment that may be suscep -
tible to interference caused by
improperly installed or high output radio
transmitting equipment. This interfer -
ence can cause possible loss of anti-lock
braking capability. Installation of such
equipment should be performed by qual -
ified professionals.
Pumping of the Anti-Lock Brakes will
diminish their effectiveness and may
lead to a collision. Pumping makes the
stopping distance longer. Just press
firmly on your brake pedal when you
need to slow down or stop.
The ABS cannot prevent the natural laws
of physics from acting on the vehicle, nor
can it increase braking or steering effi -
ciency beyond that afforded by the
condition of the vehicle brakes and tires
or the traction afforded.
The ABS cannot prevent collisions,
including those resulting from excessive
speed in turns, following another vehicle
too closely, or hydroplaning.
The capabilities of an ABS equipped
vehicle must never be exploited in a
reckless or dangerous manner that could
jeopardize the user’s safety or the safety
of others.
WARNING! (Continued)
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73
If the “Anti-Lock Brake Warning Light” is on,
the brake system should be serviced as soon
as possible to restore the benefits of
anti-lock brakes. If the “Anti-Lock Brake
Warning Light” does not come on when the
ignition is turned to the ON/RUN mode, have
the light repaired as soon as possible.
Electronic Brake Control System
Your vehicle is equipped with an advanced
Electronic Brake Control system (EBC). This
system includes Electronic 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 Elec-
tronic 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
Ready Alert Braking (RAB), Rain Brake
Support (RBS), Trailer Sway Control (TSC),
Hill Descent Control (HDC), and Dynamic
Steering Torque (DST).
Brake Assist System (BAS) — If Equipped
The Brake Assist System (BAS) is designed
to optimize the vehicle’s braking capability during emergency braking maneuvers. The
system detects an emergency braking situa
-
tion by sensing the rate and amount of brake
application and then applies optimum pres -
sure to the brakes. This can help reduce
braking distances. The BAS complements
the Anti-Lock Brake System (ABS). Applying
the brakes very quickly results in the best
BAS assistance. To receive the benefit of the
system, you must apply continuous braking
pressure during the stopping sequence, (do
not “pump” the brakes). Do not reduce brake
pedal pressure unless braking is no longer
desired. Once the brake pedal is released,
the BAS is deactivated.
Brake System Warning Light
The red “Brake System Warning Light” will
turn on when the ignition is turned to the ON/
RUN mode and may stay on for as long as
four seconds.
If the “Brake System Warning Light”
remains on or comes on while driving, it indi -
cates that the brake system is not func -
tioning properly and that immediate service
is required. If the “Brake System Warning
Light” does not come on when the ignition is
turned to the ON/RUN mode, have the light
repaired as soon as possible.
Dynamic Steering Torque (DST)
Dynamic Steering Torque (DST) is a feature
of the ESC and Electric Power Steering
(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. WARNING!
The Brake Assist System (BAS) cannot
prevent the natural laws of physics from
acting on the vehicle, nor can it increase
the traction afforded by prevailing road
conditions. BAS cannot prevent collisions,
including those resulting from excessive
speed in turns, driving on very slippery
surfaces, or hydroplaning. The capabilities
of a BAS-equipped vehicle must never be
exploited in a reckless or dangerous
manner, which could jeopardize the user's
safety or the safety of others.
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75
(Continued)ESC Operating Modes
NOTE:
Depending upon model and mode of opera-
tion, the ESC system may have multiple
operating modes. ESC OFF Button
ESC On
This is the normal operating mode for the
ESC. Whenever the vehicle is started, the
ESC system will be in this mode. This mode
should be used for most driving conditions.
Alternate ESC modes should only be used for
specific reasons as noted in the following
paragraphs.
Partial Off
The “Partial Off” mode is intended for times
when a more spirited driving experience is
desired. This mode may modify TCS and ESC
thresholds for activation, which allows for
more wheel spin than normally allowed. This
mode may be useful if the vehicle becomes
stuck.
WARNING!
Electronic Stability Control (ESC) cannot
prevent the natural laws of physics from
acting on the vehicle, nor can it increase
the traction afforded by prevailing road
conditions. ESC cannot prevent acci -
dents, including those resulting from
excessive speed in turns, driving on very
slippery surfaces, or hydroplaning. ESC
also cannot prevent accidents resulting
from loss of vehicle control due to inap -
propriate driver input for the conditions.
Only a safe, attentive, and skillful driver
can prevent accidents. The capabilities
of an ESC equipped vehicle must never
be exploited in a reckless or dangerous
manner which could jeopardize the
user’s safety or the safety of others.Vehicle modifications, or failure to prop -
erly maintain your vehicle, may change
the handling characteristics of your
vehicle, and may negatively affect the
performance of the ESC system.
Changes to the steering system, suspen -
sion, braking system, tire type and size
or wheel size may adversely affect ESC
performance. Improperly inflated and
unevenly worn tires may also degrade
ESC performance. Any vehicle modifica-
tion or poor vehicle maintenance that
reduces the effectiveness of the ESC
system can increase the risk of loss of
vehicle control, vehicle rollover, personal
injury and death.
WARNING! (Continued)
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SAFETY
80
Traction Control System (TCS)
The Traction Control System (TCS) 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 spin-
ning wheel(s) and/or reduce vehicle power to
provide enhanced acceleration and stability.
A feature of the TCS, Brake Limited Differen -
tial (BLD), functions similar to a limited slip
differential 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 vehicle 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.
Trailer Sway Control (TSC)
Trailer Sway Control (TSC) uses sensors in
the vehicle to recognize an excessively
swaying trailer and will take the appropriate
actions to attempt to stop the sway. TSC will
become active automatically once an exces -
sively swaying trailer is recognized.
NOTE:
TSC cannot stop all trailers from swaying.
Always use caution when towing a trailer and
follow the trailer tongue weight recommen -dations. Refer to “Trailer Towing” in
“Starting And Operating” for further informa
-
tion.
When TSC is functioning, the “ESC Activa -
tion/Malfunction Indicator Light” will flash,
the engine power may be reduced and you
may feel the brakes being applied to indi -
vidual wheels to attempt to stop the trailer
from swaying. TSC is disabled when the ESC
system is in the “Partial Off” or “Full Off”
modes.
AUXILIARY DRIVING
SYSTEMS
Blind Spot Monitoring (BSM) — If
Equipped
The Blind Spot Monitoring (BSM) system
uses two radar-based sensors, located inside
the rear bumper fascia, to detect highway
licensable vehicles (automobiles, trucks,
motorcycles, etc.) that enter the blind spot
zones from the rear/front/side of the vehicle. Rear Detection Zones
When the vehicle is started, the BSM
warning light will momentarily illuminate in
both outside rear view mirrors to let the
driver know that the system is operational.
The BSM system sensors operate when the
vehicle is in any forward gear or REVERSE
and enters standby mode when the vehicle is
in PARK.
The BSM detection zone covers approxi -
mately one lane width on both sides of the
vehicle 12 ft (3.8 m). The zone length starts
at the outside mirror and extends approxi -
mately 10 ft (3 m) beyond the rear bumper
of the vehicle. The BSM system monitors the
detection zones on both sides of the vehicle
when the vehicle speed reaches approxi -
mately 6 mph (10 km/h) or higher and will
alert the driver of vehicles in these areas.
WARNING!
If TSC activates while driving, slow the
vehicle down, stop at the nearest safe
location, and adjust the trailer load to
eliminate trailer sway.
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STARTING AND OPERATING
146
FOUR-WHEEL DRIVE
OPERATION — IF EQUIPPED
Jeep Active Drive
Your vehicle may be equipped with a Power
Transfer Unit (PTU). This system is auto-
matic with no driver inputs or additional
driving skills required. Under normal driving
conditions, the front wheels provide most of
the traction. If the front wheels begin to lose
traction, power is shifted automatically to
the rear wheels. The greater the front wheel
traction loss, the greater the power transfer
to the rear wheels.
Additionally, on dry pavement under heavy
throttle input (where one may have no wheel
spin), torque will be sent to the rear in a
preemptive effort to improve vehicle launch
and performance characteristics.
Four Wheel Drive (4x4)
The four wheel drive (4WD) is fully automatic
in normal driving mode.
NOTE:
It is not possible to carry out the change of
mode when the vehicle exceeds the speed of
75 mph (120 km/h).
Enabling Four Wheel Drive (4x4)
The buttons for the activation of four wheel
drive are located on the device Selec-Terrain
and allow you to select the following:
4WD LOCK
4WD LOW — (Trailhawk models only)
Active Drive Control — If Equipped
Selec-Terrain Switch The Power Transfer Unit (PTU) is locked to
ensure immediate availability of torque to
the rear drive axles. This feature is selectable
in AUTO mode and automatic in the other
driving mode. 4WD LOCK can be enabled by
the following ways:
When the 4WD LOCK button is pushed.
When the Selec-Terrain switch is rotated
from AUTO to any other off-road modes.
Active Drive With Low Control — (Trailhawk
models only)
Selec-Terrain Switch (Trailhawk)
CAUTION!
All wheels must have the same size and
type tires. Unequal tire sizes must not be
used. Unequal tire size may cause failure
of the power transfer unit.
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147
The 4WD LOW mode helps to improve the
off-road performance in all modes. To enable
4WD LOW, please follow the steps below:
Enabling 4WD LOW
With the vehicle stationary, the ignition in
the ON/RUN position or with the engine
running, shift the transmission into
NEUTRAL and push the button once 4WD
LOW. The instrument cluster will display the
message "4WD LOW" once the shift is
complete.
NOTE:
Both LOCK and LOW LED lights will blink
and then become active on the
Selec-Terrain switch until the shift is
complete.
The instrument cluster display will illumi-
nate the "4WD LOW" icon.
Disabling 4WD LOW
To disable the 4WD LOW mode, the vehicle
must be stationary and the transmission
shifted into NEUTRAL. Push the 4WD LOW
button once.
SELEC-TERRAIN — IF
EQUIPPED
Selec-Terrain combines the capabilities of
the vehicle control systems, along with driver
input, to provide the best performance for all
terrains.
Mode Selection Guide
Rotate the Selec-Terrain knob to select the
desired mode.
Selec-Terrain Switch Selec-Terrain Switch (Trailhawk)
AUTO
: This four-wheel drive operation is a
continuous operation, is fully automatic
and can be used on and off road. This
mode balances traction to ensure maneu -
verability and acceleration improvement
compared to a vehicle with two wheel
drive. This mode also reduces fuel
consumption, since it allows the discon -
nect of the drive shaft where conditions
permit.
SNOW: This mode allows you to have
greater stability under conditions of bad
weather. For use on and off road on
surfaces with poor traction, such as roads
covered with snow. When in SNOW mode
(depending on certain operating condi -
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STARTING AND OPERATING
148
tions), the transmission may use SECOND
gear (rather than FIRST gear) during
launches, to minimize wheel slippage.
SAND: For off-road driving or use on
surfaces with poor traction, such as dry
sand. The transmission is set to provide
maximum traction.
MUD: For off-road driving or use on
surfaces with poor traction, such as roads
covered by mud or wet grass.
ROCK (Trailhawk only): This mode is only
available in 4WD LOW range. The device
sets the vehicle to maximize traction and
allow the highest steering capacity for
off-road surfaces. This mode gives you the
maximum performance off-road. Use for
low speed obstacles such as large rocks,
deep ruts, etc.
NOTE:
Rock mode is only available on the vehi -
cles equipped with the Off-Road package.
Activate the Hill Descent Control for steep
downhill control. See “Electronic Brake
Control System” in “Safety” for further
information.
STOP/START SYSTEM — IF
EQUIPPED
The Stop/Start function is developed to
reduce fuel consumption. The system will
stop the engine automatically during a
vehicle stop if the required conditions are
met. Releasing the brake pedal, clutch pedal
or pressing the accelerator pedal will auto -
matically re-start the engine.
Operating Modes
Engine Stopping Mode
Models equipped with a manual transmis -
sion:
With the vehicle stopped, the engine stops
with transmission in neutral and clutch
pedal released.
Models equipped with an automatic trans -
mission:
With vehicle at a standstill and brake pedal
pressed, the engine switches off if the gear
selector is in a position other than REVERSE.
In the event of stops uphill, the engine
switching will be disabled to activate the
"Hill Start Assist" function (works only with
the engine running).
The warning light on the instrument panel
switches on to signal that the engine was
stopped.
WARNING!
Before opening the hood, make sure that
the engine is off and that the ignition is in
the OFF mode. Follow the indications on
the plate underneath the hood. We
recommend that you remove the key fob if
other people remain in the vehicle. The
vehicle should only be exited after the key
fob has been removed and the ignition is
in the OFF mode. During refueling, make
sure that the engine is off (ignition device
in the OFF mode).
CAUTION!
When replacing the battery, always contact
your authorized dealer. Replace the battery
with the same type (HEAVY DUTY) and
with the same specifications.
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STARTING AND OPERATING
164
When the LaneSense system senses the
lane has been approached and is in a lane
departure situation, the left thick lane line
flashes yellow, the left thin line remains
solid yellow and the LaneSense telltale
changes from solid white to flashing
yellow.
NOTE:
The LaneSense system operates with the
similar behavior for a right lane departure
when only the right lane marking has been
detected.
Left Lane Departure — Both Lanes Detected
When the LaneSense system is on, the
lane lines turn from grey to white to indi-
cate that both of the lane markings have
been detected. The LaneSense telltale
is solid green when both lane markings
have been detected and the system is
“armed” to provide visual warnings in the
instrument cluster display and a torque
warning in the steering wheel if an unin -
tentional lane departure occurs.
When the LaneSense system senses a lane
drift situation, the left thick lane line and
left thin line turn solid yellow. The Lane-
Sense telltale changes from solid green to solid yellow. At this time torque is
applied to the steering wheel in the oppo-
site direction of the lane boundary.
For example: if approaching the left side
of the lane the steering wheel will turn to
the right.
When the LaneSense system senses the
lane has been approached and is in a lane
departure situation, the left thick lane line
flashes yellow and the left thin line
remains solid yellow. The LaneSense tell
-
tale stays solid yellow. At this time
torque is applied to the steering wheel in
the opposite direction of the lane
boundary.
For example: if approaching the left side
of the lane the steering wheel will turn to
the right.
NOTE:
The LaneSense system operates with the
similar behavior for a right lane departure.
Changing LaneSense Status
The LaneSense system has settings to adjust
the intensity of the torque warning (Low/
Medium/High) and the warning zone sensi -
tivity (Early/Medium/Late) that you can
configure through the Uconnect system screen. Refer to “Uconnect Settings” in
“Multimedia” in the Owner’s Manual for
further details.
NOTE:
The system will not apply torque to the
steering wheel whenever a safety system
engages (Anti-Lock Brakes, Traction
Control System, Electronic Stability
Control, Forward Collision Warning, etc.).
Use of the turn signals and Hazard
Warning flashers also suppresses the
warnings.
PARKVIEW REAR BACK UP
CAMERA — IF EQUIPPED
You can see an on-screen image of the rear
of your vehicle whenever the transmission is
shifted into REVERSE. The ParkView Rear
Back Up Camera image will be displayed on
the Uconnect Display, located on the center
stack of the instrument panel.
If the Uconnect Display appears foggy, clean
the camera lens located on the rear of the
vehicle above the rear license plate
Refer to “ParkView Back Up Camera” in
“Starting And Operating” in your Owner's
Manual for further information.
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SERVICING AND MAINTENANCE
236
(Continued)
NOTE:
Wheel Valve Stem must be replaced as well
when installing new tires due to wear and
tear in existing tires.
Keep dismounted tires in a cool, dry place
with as little exposure to light as possible.
Protect tires from contact with oil, grease,
and gasoline.
Replacement Tires
The tires on your new vehicle provide a
balance of many characteristics. They should
be inspected regularly for wear and correct
cold tire inflation pressures. The manufac-
turer strongly recommends that you use tires
equivalent to the originals in size, quality
and performance when replacement is
needed. Refer to the paragraph on “Tread
Wear Indicators” in this section. Refer to the
Tire and Loading Information placard or the
Vehicle Certification Label for the size desig -
nation of your tire. The Load Index and
Speed Symbol for your tire will be found on
the original equipment tire sidewall.
It is recommended to replace the two front
tires or two rear tires as a pair. Replacing just
one tire can seriously affect your vehicle’s
handling. If you ever replace a wheel, make
sure that the wheel’s specifications match
those of the original wheels. It is recommended you contact an authorized
tire dealer or original equipment dealer with
any questions you may have on tire specifica
-
tions or capability. Failure to use equivalent
replacement tires may adversely affect the
safety, handling, and ride of your vehicle.
Tire Types
All Season Tires — If Equipped
All Season tires provide traction for all
seasons (Spring, Summer, Fall, and Winter).
Traction levels may vary between different all
season tires. All season tires can be identi -
fied by the M+S, M&S, M/S or MS designa -
tion on the tire sidewall. Use all season tires
only in sets of four; failure to do so may
adversely affect the safety and handling of
your vehicle.
WARNING!
Do not use a tire, wheel size, load rating,
or speed rating other than that specified
for your vehicle. Some combinations of
unapproved tires and wheels may change
suspension dimensions and performance
characteristics, resulting in changes to
steering, handling, and braking of your
vehicle. This can cause unpredictable
handling and stress to steering and
suspension components. You could lose
control and have a collision resulting in
serious injury or death. Use only the tire
and wheel sizes with load ratings
approved for your vehicle.
Never use a tire with a smaller load index
or capacity, other than what was origi -
nally equipped on your vehicle. Using a
tire with a smaller load index could result
in tire overloading and failure. You could
lose control and have a collision.
Failure to equip your vehicle with tires
having adequate speed capability can
result in sudden tire failure and loss of
vehicle control.
CAUTION!
Replacing original tires with tires of a
different size may result in false
speedometer and odometer readings.
WARNING! (Continued)
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237
Summer Or Three Season Tires — If
Equipped
Summer tires provide traction in both wet
and dry conditions, and are not intended to
be driven in snow or on ice. If your vehicle is
equipped with Summer tires, be aware these
tires are not designed for Winter or cold
driving conditions. Install Winter tires on
your vehicle when ambient temperatures are
less than 40°F (5°C) or if roads are covered
with ice or snow. For more information,
contact an authorized dealer.
Summer tires do not contain the all season
designation or mountain/snowflake symbol
on the tire sidewall. Use Summer tires only
in sets of four; failure to do so may adversely
affect the safety and handling of your
vehicle.
Snow Tires
Some areas of the country require the use of
snow tires during the Winter. Snow tires can
be identified by a “mountain/snowflake”
symbol on the tire sidewall.If you need snow tires, select tires
equivalent in size and type to the
original equipment tires. Use snow
tires only in sets of four; failure to do so may
adversely affect the safety and handling of
your vehicle.
Snow tires generally have lower speed ratings
than what was originally equipped with your
vehicle and should not be operated at
sustained speeds over 75 mph (120 km/h).
For speeds above 75 mph (120 km/h) refer
to original equipment or an authorized tire
dealer for recommended safe operating
speeds, loading and cold tire inflation pres -
sures.
While studded tires improve performance on
ice, skid and traction capability on wet or dry
surfaces may be poorer than that of
non-studded tires. Some states prohibit
studded tires; therefore, local laws should be
checked before using these tire types.
Spare Tires — If Equipped
NOTE:
For vehicles equipped with Tire Service Kit
instead of a spare tire, please refer to “Tire
Service Kit” in “In Case Of Emergency” in
the Owner’s Manual for further information.
Refer to the “Towing Requirements - Tires”
in “Starting And Operating” in the Owner’s
Manual for restrictions when towing with a
spare tire designated for temporary emer -
gency use.
Spare Tire Matching Original Equipped Tire
And Wheel — If Equipped
Your vehicle may be equipped with a spare
tire and wheel equivalent in look and func -
tion to the original equipment tire and wheel
found on the front or rear axle of your vehicle.
This spare tire may be used in the tire rota -
WARNING!
Do not use Summer tires in snow/ice
conditions. You could lose vehicle control,
resulting in severe injury or death. Driving
too fast for conditions also creates the
possibility of loss of vehicle control.
CAUTION!
Because of the reduced ground clearance,
do not take your vehicle through an
automatic car wash with a compact or
limited use temporary spare installed.
Damage to the vehicle may result.
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