steering JEEP COMPASS 2023 Service Manual

STARTING AND OPERATING163
Traction Downhill
Shift the transmission into a low gear and the 4WD
System to 4WD LOW range or select Hill Descent
Control (if equipped) Úpage 191. Let the vehicle
go slowly down the hill with all four wheels turning
against engine compression drag. This will permit
you to control the vehicle speed and direction.
When descending mountains or hills, repeated
braking can cause brake fade with loss of braking
control. Avoid repeated heavy braking by
downshifting the transmission whenever possible.
After Driving Off-Road
Off-road operation puts more stress on your
vehicle than does most on-road driving. After going
off-road, it is always a good idea to check for
damage.
Completely inspect the underbody of your
vehicle. Check tires, body structure, steering,
suspension, and exhaust system for damage.
Inspect the radiator for mud and debris and
clean as required.
Check threaded fasteners for looseness, partic -
ularly on the chassis, drivetrain components,
steering, and suspension. 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.
Impacted material can cause wheel imbalance.
Freeing the wheels of impacted material will
likely rectify imbalance condition.
WARNING!
Abrasive material in any part of the braking
system may cause excessive wear or
unpredictable braking performance. Full braking
power may not be available to prevent a
collision. If you have been operating your vehicle
in dirty conditions, inspect and clean the braking
components as soon as possible.
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MULTIMEDIA167
Phone Pop-ups Displayed In Cluster This setting will display smartphone notifications and messages in the
Instrument Cluster Display.
Time Format This setting will allow you to set the time format (AM/PM). Sync Time With GPS
must be “Off” for this setting to be available. The “12 hrs” setting will set the
time to a 12-hour format. The “24 hrs” setting will set the time to a 24-hour
format.
Voice Options This setting will allow you to change the voice options for the radio to
“Male” or “Female”.
Wake Up Word This setting will allow you to set the system “Wake Up” word. The available
options are “Off”, “Hey, Uconnect”, and “Hey, Jeep®”.
Voice Barge-in This setting will allow Voice Barge-in to be turned on or off.
Show Command List This setting will allow the Command List to be shown on or off.
Navigation Settings This setting will redirect to the list of Navigation settings. Refer to the Owner’s
Manual Supplement for further information.
Auto-On Driver Heated/Ventilated Seat & Heated Steering Wheel This setting will activate the vehicle’s comfort system and heated seats or
heated steering wheel when the vehicle is remote started or ignition is
started. The “Off” setting will not activate the comfort systems. The “Remote
Start” setting will only activate the comfort systems when using Remote Start.
The “All Start” setting will activate the comfort systems whenever the vehicle
is started.
Setting Name
Description
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MULTIMEDIA171
Pedestrian Emergency Braking — Located In Automatic Emergency Braking
Submenu This setting will turn the Pedestrian Emergency Braking system on or off.
Lane Management — Located In Active Lane Management This setting will activate the system that will alert the driver when a lane
departure is detected. If selected, steering assist can be provided.
The available options are “Vibration Only”, “Steering Assist Only”, and
“Vibration + Steering Assist”.
Lane Warning — Located In Active Lane Management This setting will set the warning type for Active Lane Management.
The available options are “Early”, “Medium”, and “Late”.
Vibration Strength — Located In Active Lane Management This setting will set the strength of the steering wheel vibration. The available
options are “Low”, “Medium”, and “High”.
Steering Assist Strength — Located In Active Lane Management This setting will set the strength of the steering wheel pull when a lane
departure is detected. The available options are “Low”, “Medium”, and
“High”.
LaneSense Warning — Located In LaneSense submenu This setting will set the warning type for LaneSense. The available options are
“Early”, “Medium”, and “Late”.
LaneSense Strength — Located In LaneSense submenu This setting will set the strength of the LaneSense system. The available
options are “Low”, “Medium”, and “High”.
ParkSense This setting will change the type of ParkSense alert when a close object is
detected. The “Sound Only” setting will provide an audible chime when an
object is detected. The “Sound and Display” setting will provide both an
audible chime and a visual display when an object is detected.
Front ParkSense Volume This setting adjusts the volume of the Front ParkSense system. The available
settings are “Low”, “Medium”, and “High”.
Rear ParkSense Volume This setting adjusts the volume of the Rear ParkSense system. The available
settings are “Low”, “Medium”, and “High”.
Setting Name
Description
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172MULTIMEDIA
Rear ParkSense Braking Assist This setting will provide braking assistance if the Rear ParkSense system
senses a collision with an object.
Active ParkSense Mode This setting will control Active ParkSense functionality between fully
autonomous parking and semi-autonomous parking. The available options
are “Full Auto” and “Steering Only”.
Active ParkSense Proximity Chime This setting will turn the Active ParkSense Proximity Chimes on or off. This
setting in only available when Active ParkSense Mode is set to “Full Auto”.
Blind Spot Alert This setting will change the type of alert provided when an object is detected
in the vehicle’s blind spot. The “Off” setting will turn off Blind Spot Alert. The
“Lights” setting will activate the Blind Spot Alert lights on the outside mirrors.
The “Lights & Chime” setting will activate both the lights on the outside
mirrors and an audible chime.
Traffic Sign Assist This setting will turn Traffic Sign Assist on or off.
Traffic Sign Assist Warning This setting will allow you to set the warning type related to the traffic sign.
The available options are “Off”, “Visual”, and “Visual + Chime”.
New Speed Zone Indication This setting will allow you to set if the system will warn you that the speed limit
has changed in an area. The available options are “Off”, “Visual”, and
“Visual + Chime”.
Drowsy Driver Alert This setting will monitor the driver’s driving habits and warn you of any
changes, indicating that the driver may be drowsy. The available options are
“On” and “Off”.
Highway Assist Steering Wheel Vibration This setting will vibrate the steering wheel when a lane departure is detected.
The available options are “On” and “Off”.
Setting Name
Description

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178MULTIMEDIA
Brakes
Greeting Lights This setting will turn the Greeting Lights on or off.
Daytime Running Lights This setting will allow you to turn the Daytime Running Lights on or off.
Cornering Lights When this setting is selected, if the steering wheel rotation angle is large or
the turn signal indicators are on, a light (incorporated in the fog light) will turn
on, on the relevant side to improve visibility at night.
Headlight Dip This setting will lower the headlights when driving on the opposite side of the
road. The available options are “On” and “Off”.
Flash Lights With Lock This setting will allow you to turn the flashing of the lights when the Lock
button is pushed on the key fob on or off.
Setting Name
Description
After pressing the Brakes button on the touchscreen, the following settings will be available:
NOTE:Depending on the vehicle’s options, feature settings may vary.
Setting NameDescription
Auto Park Brake This setting will turn the Auto Park Brake on or off.
Brake Service This setting will allow you to retract the brakes for servicing.

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180MULTIMEDIA
Seats & Comfort
Power Liftgate Alert This setting will chime an audible alert when the power liftgate is raising or
lowering. Selectable options are “On” and “Off”.
Hands-Free Power Liftgate This setting will use hands-free technology to automatically open or close the
power liftgate. Selectable options are “On” and “Off”.
Setting Name
Description
Auto Door Locks This setting will allow you to change if the doors lock automatically when the
vehicle reaches 12 mph (19 km/h).
Setting Name
Description
When the Seats & Comfort button is pressed on the touchscreen, the system displays the option related to the vehicle’s comfort systems when remote start
has been activated or the vehicle has been started.
NOTE:Depending on the vehicle’s options, feature settings may vary.
Setting NameDescription
Auto-On Driver Heated/Ventilated Seat & Steering Wheel With Vehicle Start This setting will activate the vehicle’s comfort systems and heated seats or
heated steering wheel when the vehicle is remote started or ignition is
started. The “Off” setting will not activate the comfort systems. The “Remote
Start” setting will only activate the comfort systems when using Remote Start.
The “All Start” setting will activate the comfort systems whenever the vehicle
is started.

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187
(Continued)
SAFETY
SAFETY FEATURES
ANTI-LOCK BRAKE SYSTEM (ABS)
The ABS provides increased vehicle stability and
brake performance 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.
The ABS is activated during braking when the
system detects one or more wheels are beginning
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 normal
characteristics when the ABS activates:
ABS motor noise or clicking sounds (you may
continue to hear for a short time after the stop)
Brake pedal pulsations
A slight drop of the brake pedal at the end of
the stopThe ABS is designed to function with the Original
Equipment Manufacturer (OEM) tires. Modification
may result in degraded ABS performance.
Anti-Lock Brake System (ABS) Warning
Light
The yellow ABS Warning Light will turn on when the
ignition is placed in the ON/RUN mode and may
stay on for as long as four seconds.
If the ABS Warning Light remains on or comes on
while driving, it indicates 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 ABS Warning Light is on.
If the ABS Warning Light is on, the brake system
should be serviced as soon as possible to restore
the benefits of Anti-lock Brakes. If the ABS Warning
WARNING!
The ABS contains sophisticated electronic
equipment that may be susceptible to interfer
-
ence caused by improperly installed or high
output radio transmitting equipment. This
interference can cause possible loss of
anti-lock braking capability. Installation of
such equipment should be performed by
qualified 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 efficiency 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 hydro -
planing.
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!
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188SAFETY
Light does not come on when the ignition is placed
in the ON/RUN mode, have the light repaired as
soon as possible.
ELECTRONIC BRAKE CONTROL (EBC)
S
YSTEM

Your vehicle is equipped with an advanced
Electronic Brake Control (EBC) system. This system
includes Anti-Lock Brake System (ABS), Brake Assist
System (BAS), Electronic Brake Force Distribution
(EBD), Electronic Roll Mitigation (ERM), Electronic
Stability Control (ESC), Hill Start Assist (HSA), and
Traction Control System (TCS). These systems work
together to enhance both vehicle stability and
control in various driving conditions.

Your vehicle may also be equipped with Dynamic
Steering Torque (DST), Hill Descent Control (HDC),
Rain Brake Support (RBS), Ready Alert Braking
(RAB), and Trailer Sway Control (TSC).
Brake Assist System (BAS)
The BAS is designed to optimize the vehicle’s
braking capability during emergency braking
maneuvers. The system detects an emergency
braking situation by sensing the rate and amount
of brake application and then applies optimum
pressure 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 placed in 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 indicates that the brake
system is not functioning properly and that
immediate service is required. If the Brake System
Warning Light does not come on when the ignition
is placed in the ON/RUN mode, have the light
repaired as soon as possible.
Dynamic Steering Torque (DST)
DST is a feature of the Electronic Stability Control
(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.
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 driver’s 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.
Electronic Brake Force Distribution (EBD)
EBD 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.
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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SAFETY189
(Continued)
Electronic Roll Mitigation (ERM)
ERM anticipates the potential for wheel lift by
monitoring the driver’s steering wheel input and
the speed of the vehicle. When ERM determines
that the rate of change of the steering wheel angle
and vehicle’s speed are sufficient to potentially
cause wheel lift, it then applies the appropriate
brake and may also reduce engine power to lessen
the chance that wheel lift will occur. ERM can only
reduce the chance of wheel lift occurring during
severe or evasive driving maneuvers; it cannot
prevent wheel lift due to other factors, such as
road conditions, leaving the roadway, or striking
objects or other vehicles.
Electronic Stability Control (ESC)
ESC enhances directional control and stability of
the vehicle under various driving conditions. ESC
corrects for oversteering or understeering of the
vehicle by applying the brake of the appropriate
wheel(s) to counteract the above conditions.
Engine power may also be reduced to help the
vehicle maintain the desired path.
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.
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 appropriate wheel to
assist in counteracting the oversteer or understeer
condition. The ESC Activation/Malfunction Indicator Light
located 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 Light begins to
flash during acceleration, ease up on the
accelerator and apply as little throttle as possible.
Be sure to adapt your speed and driving to the
prevailing road conditions.
WARNING!
Many factors, such as vehicle loading, road
conditions and driving conditions, influence
the chance that wheel lift or rollover may occur.
ERM cannot prevent all wheel lift or rollovers,
especially those that involve leaving the roadway
or striking objects or other vehicles. The
capabilities of an ERM-equipped vehicle must
never be exploited in a reckless or dangerous
manner which could jeopardize the user's safety
or the safety of others.
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 condi
-
tions. ESC cannot prevent accidents, including
those resulting from excessive speed in turns,
driving on very slippery surfaces, or hydro -
planing. ESC also cannot prevent accidents
resulting from loss of vehicle control due to
inappropriate 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.
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190SAFETY
(Continued)
ESC Operating Modes
Depending upon model and mode of operation, the
ESC system may have multiple operating modes.
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
This mode may be useful if the vehicle becomes
stuck. This mode may modify TCS and ESC
thresholds for activation, which allows for more
wheel spin than normally allowed.
To enter the “Partial Off” mode, momentarily push
the ESC OFF button, located below the radio. The
ESC OFF Indicator Light will illuminate. To turn the
ESC on again, momentarily push the ESC OFF
button and the ESC OFF Indicator Light will turn off.
NOTE:
When driving with snow chains, or when starting off
in deep snow, sand, or gravel, it may be desirable to
allow more wheel spin. This can be accomplished by
momentarily pushing the ESC OFF button to enter
“Partial Off” mode. Once the situation requiring
“Partial Off” mode is overcome, turn ESC back on by
momentarily pushing the ESC OFF button. This may
be done while the vehicle is in motion.

Full Off (Four-Wheel Drive Models Only)
This mode is intended for off-highway or off-road
use when ESC stability features could inhibit
vehicle maneuverability due to trail conditions.
This mode is entered by pushing and holding the
ESC OFF button for five seconds when the vehicle
is stopped and the engine is running. After five
seconds, the ESC OFF Indicator Light will illuminate
and the “ESC OFF” message will appear in the
instrument cluster display.
In this mode, ESC and TCS, except for the “limited
slip” feature described in the TCS section, are
turned off until the vehicle reaches a speed of
40 mph (64 km/h). At 40 mph (64 km/h), the
system returns to “Partial Off” mode, as described
above. TCS remains off. When the vehicle speed
drops below 30 mph (48 km/h), the ESC system
shuts off. ESC is deactivated at low vehicle speeds
so that it will not interfere with off-road driving.
However, ESC function returns to provide the
stability feature at speeds above 40 mph
(64 km/h). The ESC OFF Indicator Light will always
be illuminated when ESC is off.
Vehicle modifications, or failure to properly
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,
suspension, braking system, tire type and size
or wheel size may adversely affect ESC perfor
-
mance. Improperly inflated and unevenly worn
tires may also degrade ESC performance. Any
vehicle modification or poor vehicle mainte -
nance that reduces the effectiveness of the
ESC system can increase the risk of loss of
vehicle control, vehicle rollover, personal
injury and death.
WARNING!
WARNING!
When in “Partial Off” mode, the TCS function -
ality of ESC, except for the limited slip feature
described in the TCS section, has been
disabled and the ESC OFF Indicator Light will
be illuminated. When in “Partial Off” mode,
the engine power reduction feature of TCS is
disabled, and the enhanced vehicle stability
offered by the ESC system is reduced.
Trailer Sway Control (TSC) is disabled when
the ESC system is in the “Partial Off” mode.
WARNING!

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