2023 JEEP COMPASS battery

88GETTING TO KNOW YOUR INSTRUMENT PANEL
Variance (If Equipped)
Compass Variance is the difference between
Magnetic North and Geographic North. To
compensate for the differences, the variance
should be set for the zone where the vehicle is
driven, per the zone map. Once properly set, the
compass will automatically compensate for the
differences and provide the most accurate
compass heading.

Compass Variance Map

BATTERY SAVER ON/BATTERY SAVER
M
ODE MESSAGE — ELECTRICAL LOAD
R
EDUCTION ACTIONS — IF EQUIPPED
This vehicle is equipped with an Intelligent Battery
Sensor (IBS) to perform additional monitoring of
the electrical system and status of the vehicle
battery.
In cases when the IBS detects charging system
failure, or the vehicle battery conditions are
deteriorating, electrical load reduction actions will
take place to extend the driving time and distance
of the vehicle. This is done by reducing power to or
turning off non-essential electrical loads.
Load reduction is only active when the engine is
running. It will display a message if there is a risk
of battery depletion to the point where the vehicle
may stall due to lack of electrical supply, or will not
restart after the current drive cycle.
When load reduction is activated, the message
“Battery Saver On” or “Battery Saver Mode” will
appear in the instrument cluster display. These messages indicate the vehicle battery has a
low state of charge and continues to lose electrical
charge at a rate that the charging system cannot
sustain.NOTE:
The charging system is independent from load
reduction. The charging system performs a diag
-
nostic on the charging system continuously.
If the Battery Charge Warning Light is on it may
indicate a problem with the charging system
Ú page 90.
The electrical loads that may be switched off
(if equipped), and vehicle functions which can be
effected by load reduction:
Heated Seat/Vented Seats/Heated Wheel
Heated/Cooled Cup Holders — If Equipped
Rear Defroster And Heated Mirrors
HVAC System
150W Power Inverter System
Audio and Telematics System

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GETTING TO KNOW YOUR INSTRUMENT PANEL89
Loss of the battery charge may indicate one or
more of the following conditions:
The charging system cannot deliver enough
electrical power to the vehicle system because
the electrical loads are larger than the capability
of charging system. The charging system is still
functioning properly.
Turning on all possible vehicle electrical loads
(e.g. HVAC to max settings, exterior and interior
lights, overloaded power outlets +12 Volts,
150W, USB ports) during certain driving condi -
tions (city driving, towing, frequent stopping).
Installing options like additional lights, upfitter
electrical accessories, audio systems, alarms
and similar devices.
Unusual driving cycles (short trips separated by
long parking periods).
The vehicle was parked for an extended period
of time (weeks, months).
The battery was recently replaced and was not
charged completely.
The battery was discharged by an electrical load
left on when the vehicle was parked.
The battery was used for an extended period
with the engine not running to supply radio,
lights, chargers, +12 Volts portable appliances
like vacuum cleaners, game consoles and
similar devices. What to do when an electrical load reduction
action message is present (“Battery Saver On” or
“Battery Saver Mode”)
During a trip:
Reduce power to unnecessary loads if possible:

Turn off redundant lights (interior or exterior)

Check what may be plugged into power
outlets +12 Volts, 150W, USB ports
Check HVAC settings (blower, temperature)
Check the audio settings (volume)
After a trip:
Check if any aftermarket equipment was
installed (additional lights, upfitter electrical
accessories, audio systems, alarms) and review
specifications if any (load and Ignition Off Draw
currents).
Evaluate the latest driving cycles (distance,
driving time and parking time).
The vehicle should have service performed if
the message is still present during consecutive
trips and the evaluation of the vehicle and
driving pattern did not help to identify the cause.
WARNING LIGHTS AND MESSAGES
The warning/indicator lights will illuminate in the
instrument panel together with a dedicated
message and/or acoustic signal when applicable.
These indications are indicative and precautionary
and as such must not be considered as exhaustive
and/or alternative to the information contained in
the Owner’s Manual, which you are advised to read
carefully in all cases. Always refer to the
information in this chapter in the event of a failure
indication. All active telltales will display first if
applicable. The system check menu may appear
different based upon equipment options and
current vehicle status. Some telltales are optional
and may not appear.
RED WARNING LIGHTS
Air Bag Warning Light
This warning light will illuminate to
indicate a fault with the air bag, and will
turn on for four to eight seconds as a bulb
check when the ignition is placed in the
ON/RUN position. This light will illuminate with a
single chime when a fault with the air bag has been
detected, it will stay on until the fault is cleared. If
the light is either not on during startup, stays on, or
turns on while driving, have the system inspected
at an authorized dealer as soon as possible.
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90GETTING TO KNOW YOUR INSTRUMENT PANEL
Brake Warning Light
This warning light monitors various brake
functions, including brake fluid level and
parking brake application. If the brake
light turns on it may indicate that the
parking brake is applied, that the brake fluid level
is low, or that there is a problem with the Anti-Lock
Brake System reservoir.
If the light remains on when the parking brake has
been disengaged, and the fluid level is at the full
mark on the master cylinder reservoir, it indicates
a possible brake hydraulic system malfunction or
that a problem with the Brake Booster has been
detected by the Anti-Lock Brake System (ABS) /
Electronic Stability Control (ESC) system. In this
case, the light will remain on until the condition has
been corrected. If the problem is related to the
brake booster, the ABS pump will run when
applying the brake, and a brake pedal pulsation
may be felt during each stop.
The dual brake system provides a reserve braking
capacity in the event of a failure to a portion of the
hydraulic system. A leak in either half of the dual
brake system is indicated by the Brake Warning
Light, which will turn on when the brake fluid level
in the master cylinder has dropped below a
specified level.
The light will remain on until the cause is corrected.
NOTE:The light may flash momentarily during sharp
cornering maneuvers, which change fluid level
conditions. The vehicle should have service
performed, and the brake fluid level checked.
If brake failure is indicated, immediate repair is
necessary.
Vehicles equipped with the Anti-Lock Brake System
(ABS) are also equipped with Electronic Brake
Force Distribution (EBD). In the event of an EBD
failure, the Brake Warning Light will turn on along
with the ABS Light. Immediate repair to the ABS
system is required.
Operation of the Brake Warning Light can be
checked by turning the ignition switch from the OFF
position to the ON/RUN position. The light should
illuminate for approximately two seconds. The light
should then turn off unless the parking brake is
applied or a brake fault is detected. If the light does
not illuminate, have the light inspected by an
authorized dealer. The light also will turn on when the parking brake
is applied with the ignition switch in the ON/RUN
position.
NOTE:This light shows only that the parking brake is
applied. It does not show the degree of brake appli
-
cation.
Battery Charge Warning Light
This warning light will illuminate when the
battery is not charging properly. If it stays
on while the engine is running, there may
be a malfunction with the charging
system. Contact an authorized dealer as soon
as possible.
This indicates a possible problem with the
electrical system or a related component.
Door Open Warning Light
This indicator will illuminate when a door
is ajar/open and not fully closed.
NOTE:If the vehicle is moving, there will also be a single
chime.
WARNING!
Driving a vehicle with the red brake light on is
dangerous. Part of the brake system may have
failed. It will take longer to stop the vehicle. You
could have a collision. Have the vehicle checked
immediately.

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GETTING TO KNOW YOUR INSTRUMENT PANEL99
EMISSIONS INSPECTION AND
MAINTENANCE PROGRAMS
In some localities, it may be a legal requirement to
pass an inspection of your vehicle's emissions
control system. Failure to pass could prevent
vehicle registration.
For states that require an Inspection and
Maintenance (I/M), this check verifies
the Malfunction Indicator Light (MIL) is
functioning and is not on when the
engine is running, and that the OBD II system is
ready for testing.

Normally, the OBD II system will be ready. The OBD II
system may not be ready if your vehicle was recently
serviced, recently had a depleted battery or a battery
replacement. If the OBD II system should be
determined not ready for the I/M test, your vehicle
may fail the test.

Your vehicle has a simple ignition actuated test,
which you can use prior to going to the test station.
To check if your vehicle's OBD II system is ready,
you must do the following:

1. Cycle the ignition switch to the ON position, but do not crank or start the engine.

NOTE:If you crank or start the engine, you will have to
start this test over.
2. As soon as you cycle the ignition switch to the ON position, you will see the Malfunction
Indicator Light (MIL) symbol come on as part of
a normal bulb check.
3. Approximately 15 seconds later, one of two things will happen:
The MIL will flash for about 10 seconds and
then return to being fully illuminated until
you turn OFF the ignition or start the engine.
This means that your vehicle's OBD II
system is not ready and you should not
proceed to the I/M station.
The MIL will not flash at all and will remain
fully illuminated until you place the ignition
in the off position or start the engine. This
means that your vehicle's OBD II system is
ready and you can proceed to the I/M
station. If your OBD II system is
not ready, you should see
an authorized dealer or repair facility. If your
vehicle was recently serviced or had a battery
failure or replacement, you may need to do nothing
more than drive your vehicle as you normally would
in order for your OBD II system to update. A
recheck with the above test routine may then
indicate that the system is now ready.
Regardless of whether your vehicle's OBD II system
is ready or not, if the MIL is illuminated during
normal vehicle operation you should have your
vehicle serviced before going to the I/M station.
The I/M station can fail your vehicle because the
MIL is on with the engine running.
3

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STARTING AND OPERATING101
3. The system starts the vehicle. If the vehicle fails to start, the starter will disengage
automatically after 10 seconds.
4. If you wish to stop the cranking of the engine prior to the engine starting, push the ENGINE
START/STOP button again.
Keyless Enter ’n Go™ — With Driver’s Foot OFF The
Brake Pedal (In PARK Or NEUTRAL Position)
The Keyless Enter ’n Go™ feature operates similar
to an ignition switch. It has three positions, OFF,
ON/RUN, and START. To change the ignition switch
positions without starting the vehicle and use the
accessories follow, these steps starting with the
ignition switch in the OFF position:

1. Push the ENGINE START/STOP button once to change the ignition switch to the ON/RUN
position.

2. Push the ENGINE START/STOP button a second time to change the ignition switch to
the OFF position.
COLD WEATHER OPERATION
(B
ELOW –22°F OR −30°C)
To ensure reliable starting at these temperatures,
use of an externally powered electric engine block
heater (available from an authorized dealer) is
recommended.
EXTENDED PARK STARTING
NOTE:Extended Park condition occurs when the vehicle
has not been started or driven for at least 30 days.

1. Install a battery charger or jumper cables to
the battery to ensure a full battery charge
during the crank cycle.

2. Place the ignition in the START position and release it when the engine starts.
3. If the engine fails to start within 10 seconds, place the ignition in the OFF position, wait
10 to 15 seconds to allow the starter to cool,
then repeat the “Extended Park Starting”
procedure.
4. If the engine fails to start after eight attempts, allow the starter to cool for at least
10 minutes, then repeat the procedure.
AFTER STARTING — WARMING UP THE
E
NGINE
The idle speed is controlled automatically and it
will decrease as the engine warms up.
IF ENGINE FAILS TO START
If the engine fails to start after you have followed
the “Normal Starting” procedure, and has not
experienced an Extended Park condition as
identified in “Extended Park Starting” procedure, it
may be flooded. Push the accelerator pedal all the
way to the floor and hold it there. Crank the engine
for no more than 15 seconds. This should clear any
excess fuel in case the engine is flooded. Leave the
ignition key in the ON/RUN position, release the
accelerator pedal and repeat the “Normal
Starting” procedure.
CAUTION!
To prevent damage to the starter, do not crank
continuously for more than 10 seconds at a
time. Wait 10 to 15 seconds before trying again.
CAUTION!
To prevent damage to the starter, do not
continuously crank the engine for more than
25 seconds at a time. Wait 60 seconds before
trying again.
4

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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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114STARTING AND OPERATING
NOTE:
ROCK mode is only available on the vehicles
equipped with the Off-Road package.
Activate the Hill Descent Control for steep down -
hill control Ú page 188.
POWER STEERING
The electric power steering system will provide
increased vehicle response and ease of
maneuverability. The electric power steering
system adapts to different driving conditions.
If the “SERVICE POWER STEERING” or “POWER
STEERING ASSIST OFF - SERVICE SYSTEM”
message and a steering wheel icon are displayed
on the instrument cluster display, it indicates that
the vehicle needs to be taken to an authorized
dealer for service. It is likely the vehicle has lost
power steering assistance Ú page 77.If the “POWER STEERING SYSTEM HOT -
PERFORMANCE MAY BE LIMITED” message and an
icon are displayed on the instrument cluster
display, it indicates that extreme steering
maneuvers may have occurred, which caused an
over temperature condition in the electric power
steering system. You will lose power steering
assistance momentarily until the over temperature
condition no longer exists. Once driving conditions
are safe, pull over and let the vehicle idle for a few
moments until the light turns off Ú
page 77.
NOTE:
Even if the power steering system is no longer
operational, it is still possible to steer the
vehicle. Under these conditions there will be a
substantial increase in steering effort, espe -
cially at low speeds and during parking maneu -
vers.
If the condition persists, see an authorized
dealer for service.
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 or
pressing the accelerator pedal will automatically
restart the engine. This vehicle has been upgraded with a heavy-duty
starter, enhanced battery, and other upgraded
engine parts, to handle the additional engine
starts.
AUTOSTOP MODE
The Stop/Start feature is enabled after every
normal customer engine start. At that time, the
system will go into STOP/START READY.
To Activate The Autostop Mode, The Following
Must Occur:
The system must be in STOP/START READY
state. A “STOP/START READY” message will be
displayed in the instrument cluster display
within the Stop/Start section Ú
page 77.
The vehicle must be completely stopped.
The gear selector must be in a forward gear and
the brake pedal pressed.
The engine will shut down, the tachometer will
move to the zero position, and the Stop/Start
telltale will illuminate indicating you are in
Autostop. Customer settings will be maintained
upon return to an engine-running condition.
WARNING!
Continued operation with reduced assist could
pose a safety risk to yourself and others. Service
should be obtained as soon as possible.

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STARTING AND OPERATING115
POSSIBLE REASONS THE ENGINE DOES
N
OT AUTOSTOP
Prior to engine shut down, the system will check
many safety and comfort conditions to see if they
are fulfilled. Detailed information about the
operation of the Stop/Start system may be viewed
in the instrument cluster display Stop/Start
Screen. In the following situations the engine will
not stop:
Driver’s seat belt is not buckled.
Driver’s door is not closed.
Battery temperature is too warm or cold.
Battery charge is low.
The vehicle is on a steep grade.
Cabin heating or cooling is in process and an
acceptable cabin temperature has not been
achieved.
HVAC is set to full defrost mode at a high blower
speed.
HVAC is set to MAX A/C.
Engine has not reached normal operating
temperature.
The transmission is not in a forward gear.
Hood is open.
Vehicle is in 4WD LOW transfer case mode.
Brake pedal is not pressed with sufficient pres -
sure.
Accelerator pedal input.
Engine temperature is too high.
5 mph (8 km/h) threshold has not been
achieved from previous Autostop.
Steering angle beyond threshold.
Adaptive Cruise Control is on and speed is set.
It may be possible for the vehicle to be driven
several times without the Stop/Start system going
into a STOP/START READY state under more
extreme conditions of the items listed above.
TO START THE ENGINE WHILE IN
A
UTOSTOP MODE
While in a forward gear, the engine will start when
the brake pedal is released or the throttle pedal is
pressed. The transmission will automatically
re-engage upon engine restart. Conditions That Will Cause The Engine To Start
Automatically While In Autostop Mode:

The transmission selector is moved out of
DRIVE (D).
To maintain cabin temperature comfort.
HVAC is set to full defrost mode.
HVAC system temperature or fan speed is
manually adjusted.
Battery voltage drops too low.
Stop/Start OFF switch is pressed.
A Stop/Start system error occurs.
Vehicle is in 4WD LOW transfer case mode.
Conditions That Force An Application Of The
Electric Park Brake While In Autostop Mode:
The driver’s door is open and brake pedal
released.
The driver’s door is open and the driver’s seat
belt is unbuckled.
The engine hood has been opened.
A Stop/Start system error occurs.
If the Electric Park Brake (EPB) is applied with the
engine off, the engine may require a manual
restart and the EPB may require a manual release
(press brake pedal and press EPB switch)
Ú page 77.
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