ECU JEEP COMPASS 2023 Owner's Manual

96GETTING TO KNOW YOUR INSTRUMENT PANEL
YELLOW INDICATOR LIGHTS
4WD Low Indicator Light — If Equipped
This light alerts the driver that the vehicle
is in the 4WD 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 Ú page 112.
4WD Lock Indicator Light
This light alerts the driver that the vehicle
is in the 4WD Lock mode. The front and
rear driveshafts are mechanically locked
together, forcing the front and rear
wheels to rotate at the same speed Ú page 112.
Auto HOLD! Fault Indicator Light —
If Equipped
The Auto HOLD! Fault Indicator light will
illuminate if a fault is detected, it will be
indicated by a yellow HOLD! indicator
light that will stay on as long as the fault
condition exists.

Active Speed Limiter Fault Indicator Light —
If Equipped

This warning light will illuminate to signal
when there is a fault detected with the
Active Speed Limiter.
Forward Collision Warning (FCW) Indicator
Light — If Equipped
This telltale will turn on to warn you of a
possible collision with the vehicle in front
of you.
Forward Collision Warning (FCW) OFF
Indicator Light — If Equipped
This indicator light illuminates to indicate
that Forward Collision Warning is off.
Immobilizer Fail / VPS Electrical Alarm
Indicator Light
This telltale will illuminate when the
Vehicle Security system has detected an
attempt to break into the vehicle.
NOTE:After cycling the ignition to the ON/RUN position,
the Vehicle Security Warning Light could illuminate
if a problem with the system is detected. This
condition will result in the engine being shut off
after two seconds.
GREEN INDICATOR LIGHTS
Auto HOLD Indicator Light — If Equipped
Auto HOLD keeps your vehicle at a
complete stop without you having to keep
your foot on the brake pedal. Once
engaged a green HOLD indicator will
appear in the Instrument Cluster Display.
Active Lane Management Indicator Light —
If Equipped
The Active Lane Management indicator
light illuminates solid green when both
lane markings have been detected and
the system is “armed” and ready to
provide visual and torque warnings if an
unintentional lane departure occurs.
Parking/Headlights On Indicator Light
This indicator light will illuminate when
the parking lights or headlights are
turned on.
Front Fog Indicator Light — If Equipped
This indicator light will illuminate when
the front fog lights are on Ú page 43.

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98GETTING TO KNOW YOUR INSTRUMENT PANEL
GRAY INDICATOR LIGHTS
Cruise Control Ready Indicator Light —
If Equipped With Base Instrument Cluster
This light will turn on when the Cruise
Control has been turned on, but not set
Úpage 117.
ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated
Onboard Diagnostic system called OBD II. This
system monitors the performance of the
emissions, engine, and automatic transmission
control systems. When these systems are
operating properly, your vehicle will provide
excellent performance and fuel economy, as well
as emissions well within current government
regulations.
If any of these systems require service, the OBD II
system will turn on the Malfunction Indicator Light
(MIL). It will also store diagnostic codes and other
information to assist your service technician in
making repairs. Although your vehicle will usually
be drivable and not need towing, see an authorized
dealer for service as soon as possible.

ONBOARD DIAGNOSTIC SYSTEM (OBD II)
C
YBERSECURITY

Your vehicle is required to have an OBD II and a
connection port to allow access to information
related to the performance of your emissions
controls. Authorized service technicians may need
to access this information to assist with the
diagnosis and service of your vehicle and
emissions system Ú page 164.
CAUTION!
Prolonged driving with the MIL on could cause
further damage to the emission control
system. It could also affect fuel economy and
driveability. The vehicle must be serviced
before any emissions tests can be performed.
If the MIL is flashing while the vehicle is
running, severe catalytic converter damage
and power loss will soon occur. Immediate
service is required.
WARNING!
ONLY an authorized service technician should
connect equipment to the OBD II connection
port in order to read the VIN, diagnose, or
service your vehicle.
If unauthorized equipment is connected to the
OBD II connection port, such as a
driver-behavior tracking device, it may:
Be possible that vehicle systems,
including safety related systems, could be
impaired or a loss of vehicle control could
occur that may result in an accident
involving serious injury or death.
Access, or allow others to access, infor -
mation stored in your vehicle systems,
including personal information.

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102STARTING AND OPERATING
STOPPING THE ENGINE
Vehicles Equipped With Electronic Key (Keyless
Enter ’n Go™):
To shut off the engine with vehicle speed greater
than 5 mph (8 km/h), you must push and hold the
ignition or push the ENGINE START/STOP button
three times consecutively within a few seconds.
The engine will shut down, and the ignition will be
placed in the ON/RUN position. Turning off the car (placing the ignition from the
ON/RUN position to the OFF position), the power
supply to the accessories are maintained for a
period of three minutes.
Opening the driver’s side door with the ignition in
ON/RUN will sound a short chime that reminds the
driver to place the ignition to OFF.
When the ignition is in the OFF position, the
window switches remain active for three minutes.
Opening a front door will cancel this function.
After severe driving, idle the engine to allow the
temperature inside the engine compartment to
cool before shutting off the engine.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine and
permits quicker starts in cold weather.
Connect the cord to a 110-115 Volt AC electrical
outlet with a grounded, three-wire extension cord.
For ambient temperatures below 0°F (-18°C), the
engine block heater is recommended. For ambient
temperatures below -20°F (-29°C), the engine
block heater is required.
The engine block heater cord is routed under the
hood, behind to the driver’s side headlamp.
NOTE:
The engine block heater cord is a factory
installed option. If your vehicle is not equipped,
heater cords are available from an authorized
dealer.
The engine block heater will require 110 Volt AC
and 6.5 Amps to activate the heater element.
The engine block heater must be plugged in at
least one hour to have an adequate warming
effect on the engine.
ENGINE BREAK-IN RECOMMENDATIONS
A long break-in period is not required for the engine
and drivetrain (transmission and axle) in your
vehicle.
Drive moderately during the first 300 miles
(500 km). After the initial 60 miles (100 km),
speeds up to 50 or 55 mph (80 or 90 km/h) are
desirable.
WARNING!
Never pour fuel or other flammable liquid into
the throttle body air inlet opening in an
attempt to start the vehicle. This could result
in flash fire causing serious personal injury.
Do not attempt to push or tow your vehicle to
get it started. Vehicles equipped with an auto -
matic transmission cannot be started this
way. Unburned fuel could enter the catalytic
converter and once the engine has started,
ignite and damage the converter and vehicle.
If the vehicle has a discharged battery,
booster cables may be used to obtain a start
from a booster battery or the battery in
another vehicle. This type of start can be
dangerous if done improperly Ú page 258.
WARNING!
Remember to disconnect the engine block
heater cord before driving. Damage to the
110-115 Volt electrical cord could cause
electrocution.

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STARTING AND OPERATING105
In the unlikely event of a malfunction of the EPB
system, a yellow EPB fault lamp will illuminate. This
may be accompanied by the Brake Warning Light
flashing. In this event, urgent service of the EPB
system is required. Do not rely on the parking
brake to hold the vehicle stationary.
Auto Park Brake
The EPB can be programmed to be applied
automatically whenever the vehicle speed is below
1.9 mph (3 km/h) and the transmission is placed
in PARK. Auto Park Brake is enabled and disabled
by customer selection through the Customer
Programmable Features section of the Uconnect
Settings Ú page 165.
Any single Auto Park Brake application can be
bypassed by pushing the EPB switch to the release
position while the transmission is placed in PARK
and the ignition is in the ON/RUN position.
SafeHold
SafeHold is a safety feature of the EPB system that
will engage the parking brake automatically if the
vehicle is left unsecured while the ignition switch is
in ON/RUN. For automatic transmissions, the EPB will
automatically engage if all of the following
conditions are met:
Vehicle speed is below 1.9 mph (3 km/h).
There is no attempt to press the brake pedal
and accelerator pedal.
The seat belt is unbuckled.
The driver’s door is open.
The vehicle is not in the PARK position.
SafeHold can be temporarily bypassed by pushing
the EPB switch while the driver’s door is open and
the brake pedal is pressed. Once manually
bypassed, SafeHold will be enabled again once the
vehicle reaches 12 mph (20 km/h) or the ignition
is turned to the OFF position and back to ON/RUN
again.
Auto Hold — If Equipped
Auto Hold is a comfort feature that allows the
driver to remove their foot from the brake pedal
once the vehicle has come to a stop. The vehicle
must be held at a standstill for a predetermined
amount of time by hydraulic braking. The EPB will
then engage and continue to hold the vehicle at a
stop until the driver applies the accelerator pedal. Auto Hold can be activated or deactivated by
pushing the HOLD button located on the switch
bank.

Auto Hold Switch

The following conditions must be met for Auto Hold
to activate:
Driver’s door is closed
Driver's seat belt is fastened
Vehicle is at a standstill
Forward gear is selected
Adaptive Cruise Control (ACC) is not engaged
EPB is not applied
ParkSense Active Park Assist System auto
parking maneuver is not activated
4

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STARTING AND OPERATING107
IGNITION PARK INTERLOCK
This vehicle is equipped with an Ignition Park
Interlock which requires the transmission to be in
PARK (P) before the ignition can be turned to the
OFF position. This helps the driver avoid
inadvertently leaving the vehicle without placing
the transmission in PARK. This system also locks
the transmission in PARK whenever the ignition is
in the OFF position.
BRAKE/TRANSMISSION SHIFT
I
NTERLOCK (BTSI) SYSTEM
This vehicle is equipped with a BTSI that holds the
transmission gear selector in PARK (P) unless the
brakes are applied. To shift the transmission out of
PARK, the ignition must be in the ON/RUN position
(whether the engine is running or not), and the
brake pedal must be pressed. The brake pedal
must also be pressed to shift from NEUTRAL (N)
into DRIVE (D) or REVERSE (R) when the vehicle is
stopped or moving at low speeds.
6-SPEED OR 9-SPEED AUTOMATIC
T
RANSMISSION
NOTE:Your vehicle may be equipped with a 6-speed or
9-speed automatic transmission, depending on
model. This section describes operation of both
the 6-speed and 9-speed transmissions.
The transmission gear range (PRND) is displayed
both beside the gear selector and in the
instrument cluster. To select a gear range, push
the lock button on the gear selector and move the
selector rearward or forward. You must also press
the brake pedal to shift the transmission out of
PARK (P) (or NEUTRAL (N), when the vehicle is
stopped or moving at low speeds). Select the
DRIVE (D) range for normal driving.
Unintended movement of a vehicle could
injure those in or near the vehicle. As with all
vehicles, you should never exit a vehicle while
the engine is running. Before exiting a vehicle,
always come to a complete stop, then apply
the parking brake, shift the transmission into
PARK, and turn the ignition OFF. When the
ignition is in the OFF position, the transmis -
sion is locked in PARK, securing the vehicle
against unwanted movement.
When leaving the vehicle, always make sure
the ignition is in the OFF position, remove the
key fob from the vehicle, and lock the vehicle.
Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing chil -
dren to be in a vehicle unattended is
dangerous for a number of reasons. A child or
others could be seriously or fatally injured.
Children should be warned not to touch the
parking brake, brake pedal or the transmis -
sion gear selector.
Do not leave the key fob in or near the vehicle
(or in a location accessible to children), and do
not leave the ignition in the ON/RUN position.
A child could operate power windows, other
controls, or move the vehicle.
WARNING!CAUTION!
Damage to the transmission may occur if the
following precautions are not observed:
Shift into or out of PARK or REVERSE only after
the vehicle has come to a complete stop.
Do not shift between PARK, REVERSE,
NEUTRAL, or DRIVE when the engine is above
idle speed.
Before shifting into any gear, make sure your
foot is firmly pressing the brake pedal.4

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STARTING AND OPERATING109
(Continued)
(Continued)
When parking on a hill, apply the parking brake
before shifting the transmission to PARK,
otherwise the load on the transmission locking
mechanism may make it difficult to move the gear
selector out of PARK. As an added precaution, turn
the front wheels toward the curb on a downhill
grade and away from the curb on an uphill grade.
When exiting the vehicle, always:

1. Apply the parking brake.

2. Shift the transmission into PARK.
3. Turn the engine off.
4. Remove the key fob from the vehicle.
NOTE:Block the wheels with a wedge or a stone if the
vehicle is parked on a steep slope.
WARNING!
Never use the PARK (P) position as a substi
-
tute for the parking brake. Always apply the
parking brake fully when exiting the vehicle to
guard against vehicle movement and possible
injury or damage.
Your vehicle could move and injure you and
others if it is not in PARK. Check by trying to
move the gear selector out of PARK with the
brake pedal released. Make sure the trans -
mission is in PARK before exiting the vehicle.
It is dangerous to shift out of PARK or
NEUTRAL (N) if the engine speed is higher
than idle speed. If your foot is not firmly
pressing the brake pedal, the vehicle could
accelerate quickly forward or in reverse.
You could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and your
foot is firmly pressing the brake pedal.
The vehicle may not engage a newly selected
gear when shifting between PARK, REVERSE
(R), or DRIVE (D) if the vehicle is moving while
shifting.
Unintended movement of a vehicle could
injure those in or near the vehicle. As with all
vehicles, you should never exit a vehicle while
the engine is running. Before exiting a vehicle,
always come to a complete stop, then apply
the parking brake, shift the transmission into
PARK, and turn the ignition OFF. When the
ignition is in the OFF position, the transmis -
sion is locked in PARK, securing the vehicle
against unwanted movement.
When leaving the vehicle, always make sure
the ignition is in the OFF position, remove the
key fob from the vehicle, and lock the vehicle.
WARNING!
Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing chil -
dren to be in a vehicle unattended is
dangerous for a number of reasons. A child or
others could be seriously or fatally injured.
Children should be warned not to touch the
parking brake, brake pedal or the transmis -
sion gear selector.
Do not leave the key fob in or near the vehicle
(or in a location accessible to children), and do
not leave the ignition in the ON/RUN position.
A child could operate power windows, other
controls, or move the vehicle.
CAUTION!
Before moving the transmission gear selector
out of PARK, you must turn the ignition to the
ON/RUN position, and also press the brake
pedal. Otherwise, damage to the gear selector
could result.
DO NOT race the engine when shifting from
PARK or NEUTRAL into another gear range, as
this can damage the drivetrain.
WARNING!
4

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124STARTING AND OPERATING
NOTE:After the ACC system holds your vehicle at a stand -
still for approximately three consecutive minutes,
the parking brake will be activated, and the ACC
system will be cancelled.
While ACC is holding your vehicle at a standstill, if
the driver seat belt is unbuckled or the driver door
is opened, the parking brake will be activated, and
the ACC system will be cancelled.
Display Warnings And Maintenance
“WIPE FRONT RADAR SENSOR IN FRONT OF
VEHICLE” WARNING
The “ACC Unavailable Wipe Front Radar Sensor”
warning will display and a chime will sound when
conditions temporarily limit system performance.
This most often occurs at times of poor visibility,
such as in snow or heavy rain. The ACC system may
also become temporarily blinded due to obstructions, such as mud, dirt or ice. In these
cases, the instrument cluster display will display
the above message and the system will deactivate.
This message can sometimes be displayed while
driving in highly reflective areas (i.e. ice and snow,
or tunnels with reflective tiles). The ACC system will
recover after the vehicle has left these areas.
Under rare conditions, when the radar is not
tracking any vehicles or objects in its path this
warning may temporarily occur.
NOTE:If the “ACC Unavailable Wipe Front Radar Sensor”
warning is active, Fixed Speed Cruise Control is still
available.
If weather conditions are not a factor, the driver
should examine the sensor. It may require cleaning
or removal of an obstruction. The sensor is located
in the center of the vehicle behind the lower grille.
To keep the ACC system operating properly, it is
important to note the following maintenance
items:
Always keep the sensor clean. Carefully wipe the
sensor lens with a soft cloth. Be cautious not to
damage the sensor lens.
Do not remove any screws from the sensor.
Doing so could cause an ACC system malfunc
-
tion or failure and require a sensor realignment.
If the sensor or front end of the vehicle is
damaged due to a collision, see an authorized
dealer for service.
Do not attach or install any accessories near the
sensor, including transparent material or after -
market grilles. Doing so could cause an ACC
system failure or malfunction.
When the condition that deactivated the system is
no longer present, the system will return to the
“Adaptive Cruise Control Off” state and will resume
function by simply reactivating it.
NOTE:
If the “ACC Unavailable Wipe Front Radar
Sensor” message occurs frequently (e.g. more
than once on every trip) without any snow, rain,
mud, or other obstruction, have the radar
sensor realigned at an authorized dealer.
Installing a snow plow, front-end protector, an
aftermarket grille or modifying the grille is not
recommended. Doing so may block the sensor
and inhibit ACC operation.
WARNING!
When the ACC system is resumed, the driver
must ensure that there are no pedestrians,
vehicles or objects in the path of the vehicle.
Failure to follow these warnings can result in a
collision and death or serious personal injury.

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154STARTING AND OPERATING
The entire vehicle should first be weighed on a
commercial scale to ensure that the GVWR has not
been exceeded. The weight on the front and rear of
the vehicle should then be determined separately
to be sure that the load is properly distributed over
the front and rear axle. Weighing the vehicle may
show that the GAWR of either the front or rear axles
has been exceeded but the total load is within the
specified GVWR. If so, weight must be shifted from
front to rear or rear to front as appropriate until the
specified weight limitations are met. Store the
heavier items down low and be sure that the
weight is distributed equally. Stow all loose items
securely before driving.
Improper weight distributions can have an adverse
effect on the way your vehicle steers and handles
and the way the brakes operate.
TRAILER TOWING
In this section you will find safety tips and
information on limits to the type of towing you can
reasonably do with your vehicle. Before towing a
trailer, carefully review this information to tow your
load as efficiently and safely as possible.
To maintain the New Vehicle Limited Warranty
coverage, follow the requirements and
recommendations in this manual concerning
vehicles used for trailer towing.
COMMON TOWING DEFINITIONS
The following trailer towing related definitions will
assist you in understanding the following
information:
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total allowable weight of your
vehicle. This includes driver, passengers, cargo
and tongue weight. The total load must be limited
so that you do not exceed the GVWR Ú page 153.
Gross Trailer Weight (GTW)
The GTW is the weight of the trailer plus the weight
of all cargo, consumables and equipment
(permanent or temporary) loaded in or on the
trailer in its "loaded and ready for operation"
condition. The recommended way to measure GTW is to put
your fully loaded trailer on a vehicle scale. The
entire weight of the trailer must be supported by
the scale.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum capacity of the front
and rear axles. Distribute the load over the front
and rear axles evenly. Make sure that you do not
exceed either front or rear GAWR Ú
page 153.
Tongue Weight (TW)
The TW is the downward force exerted on the hitch
ball by the trailer. You must consider this as part of
the load on your vehicle.
Trailer Frontal Area
The frontal area is the maximum height multiplied
by the maximum width of the front of a trailer.
CAUTION!
Do not load your vehicle any heavier than the
GVWR or the maximum front and rear GAWR. If
you do, parts on your vehicle can break, or it can
change the way your vehicle handles. This could
cause you to lose control. Overloading can
shorten the life of your vehicle.
WARNING!
It is important that you do not exceed the
maximum front or rear GAWR. A dangerous
driving condition can result if either rating is
exceeded. You could lose control of the vehicle
and have a collision.

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156STARTING AND OPERATING
(Continued)
TRAILER AND TONGUE WEIGHT
Never exceed the maximum tongue weight
stamped on your trailer hitch.
Weight Distribution

Consider the following items when computing the
weight on the front/rear axles of the vehicle:
The trailer tongue weight of the trailer.
The weight of any other type of cargo or equip -
ment put in or on your vehicle.
The weight of the driver and all passengers.
NOTE:Remember that everything put into or on the trailer
adds to the load on your vehicle. Also, additional
factory-installed options, or authorized
dealer-installed options, must be considered as
part of the total load on your vehicle. Refer to the
tire loading information placard located on the
driver’s door pillar for the maximum combined
weight of occupants and cargo for your vehicle.
TOWING REQUIREMENTS
To promote proper break-in of your new vehicle
drivetrain components, the following guidelines
are recommended. Perform the maintenance listed in Scheduled
Servicing and the proper maintenance intervals
Ú
page 267. When towing a trailer, never exceed
the GAWR or GCWR ratings.
CAUTION!
Do not tow a trailer at all during the first
500 miles (805 km) the new vehicle is driven.
The engine, axle or other parts could be
damaged.
Then, during the first 500 miles (805 km) that
a trailer is towed, do not drive over 50 mph
(80 km/h) and do not make starts at full
throttle. This helps the engine and other parts
of the vehicle wear in at the heavier loads.
WARNING!
Make certain that the load is secured in the
trailer and will not shift during travel. When
trailering cargo that is not fully secured,
dynamic load shifts can occur that may be
difficult for the driver to control. You could lose
control of your vehicle and have a collision.
When hauling cargo or towing a trailer, do not
overload your vehicle or trailer. Overloading
can cause a loss of control, poor performance
or damage to brakes, axle, engine, transmis -
sion, steering, suspension, chassis structure
or tires.
Safety chains must always be used between
your vehicle and trailer. Always connect the
chains to the hook retainers of the vehicle
hitch. Cross the chains under the trailer
tongue and allow enough slack for turning
corners.

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160STARTING AND OPERATING
RECREATIONAL TOWING (BEHIND MOTORHOME)
TOWING THIS VEHICLE BEHIND ANOTHER VEHICLE
NOTE:
When towing your vehicle, always follow appli -
cable state and provincial laws. Contact state
and provincial Highway Safety offices for addi -
tional details.
You must ensure that the Auto Park Brake
feature is disabled before towing this vehicle, to
avoid inadvertent Electric Park Brake engage -
ment. The Auto Park Brake feature is enabled or
disabled via the Customer Programmable
Features in the Uconnect Settings.
RECREATIONAL TOWING —
F
RONT-WHEEL DRIVE (FWD) MODELS
Recreational towing is allowed ONLY if the front
wheels are OFF the ground. This may be
accomplished using a tow dolly (front wheels off
the ground) or vehicle trailer (all four wheels off the
ground). If using a tow dolly, follow this procedure:

1. Properly secure the dolly to the tow vehicle, following the dolly manufacturer's
instructions.

2. Drive the front wheels onto the tow dolly. 3. Apply the Electric Park Brake (EPB). Place the
transmission in PARK (P). Turn the engine off.
4. Properly secure the front wheels to the dolly, following the dolly manufacturer's instructions.
5. Turn the ignition to the ON/RUN position, but do not start the engine.
6. Press and hold the brake pedal.
7. Release the EPB.
8. Turn the ignition OFF, remove the key fob, and release the brake pedal.
TOWING CONDITION WHEELS OFF THE GROUND FRONT-WHEEL DRIVE (FWD) FOUR-WHEEL DRIVE (4WD)
Flat Tow NONENOT ALLOWEDNOT ALLOWED
Dolly Tow REAR
NOT ALLOWEDNOT ALLOWED
FRONT OKNOT ALLOWED
On Trailer ALLBEST METHODOK

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