2023 CHRYSLER PACIFICA ECU

STARTING AND OPERATING113
(Continued)To Turn On The Engine Using ENGINE START/STOP Button

1. The transmission must be in PARK or NEUTRAL.

2. Press and hold the brake pedal while pushing the
ENGINE START/STOP button once.
To release the parking brake manually, the ignition switch
must be in the ON/RUN position. Press on the brake
pedal, then push the parking brake switch momentarily. If the driver shifts into PARK while moving, the vehicle may
Park.
PARK will engage
ONLY when vehicle speed is 1.2 mph
(1.9 km/h) or less.
The message “ Vehicle Speed Is Too High To Shift To P ” will
display in the instrument cluster display if vehicle speed is
above 1.2 mph (1.9 km/h). The gear position indicator will
blink continuously until the gear selector is returned to the
proper position, or the requested shift can be completed.
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.
AFTER STARTING — WARMING UP THE
E
NGINE
The idle speed is controlled automatically and it will
decrease as the engine warms up.


It is dangerous to shift out of PARK or NEUTRAL 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.

 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
transmission is locked in PARK, securing the vehicle
against unwanted movement.
 When exiting the vehicle, always make sure the igni -
tion 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 children to
be in a vehicle unattended is dangerous for a
number of reasons. A child or others could be seri -
ously or fatally injured. Children should be warned
not to touch the parking brake, brake pedal or the
transmission gear selector.
WARNING!
 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 ACC or ON/RUN position. A child
could operate power windows, other controls, or
move the vehicle.
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.
WARNING!
WARNING!
If vehicle speed is not below 1.2 mph (1.9 km/h) when
the driver shifts into PARK, the transmission will default
to NEUTRAL until the vehicle speed drops below
1.2 mph (1.9 km/h) and the conditions are met,
enabling AutoPark. A vehicle left in the NEUTRAL
position can roll. As an added precaution, always apply
the parking brake when exiting the vehicle.4

23_RUP_OM_EN_USC_t.book Page 113

114STARTING AND OPERATING
IF ENGINE FAILS TO START
T
O TURN OFF THE ENGINE USING THE
ENGINE START/STOP B
UTTON

1. Place the gear selector in PARK, then push and
release the ENGINE START/STOP button.

2. The ignition switch will return to the OFF position.
3. If the gear selector is not in PARK, the ENGINE START/STOP button must be held for two seconds or
three short pushes in a row with the vehicle speed
above 5 mph (8 km/h) before the engine will shut off.
The ignition switch position will remain in the ACC
position until the gear selector is in PARK and the button is pushed twice to the OFF position. If the gear
selector is not in PARK and the ENGINE START/STOP
button is pushed once, the instrument cluster will
display a “Vehicle Not In Park” message and the
engine will remain running. Never leave a vehicle out
of the PARK position, or it could roll.
NOTE:If the ignition switch is left in the ACC or ON/RUN (engine
not running) position and the transmission is in PARK, the
system will automatically time out after 30 minutes of
inactivity and the ignition will switch to the OFF position.
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 passenger’s side headlamp. Follow these
steps to properly use the engine block heater:

1. Locate the engine block heater cord (behind the
passenger’s side headlamp).

2. Undo the hook-and-loop strap that secures the heater cord in place.
3. Pull the cord to the front of the vehicle and plug it into a grounded, three-wire extension cord. 4. After the vehicle is running, reattach the cord to the
hook-and-loop strap and properly stow it away behind
the passenger’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.
While cruising, brief full-throttle acceleration within the
limits of local traffic laws contributes to a good break-in.
Wide-open throttle acceleration in low gear can be
detrimental and should be avoided.
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 automatic trans -
mission 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
Úpage 251.
WARNING!
Remember to disconnect the engine block heater cord
before driving. Damage to the 110-115 Volt electrical
cord could cause electrocution.

23_RUP_OM_EN_USC_t.book Page 114

116STARTING AND OPERATING
(Continued)
NOTE:When parking on a hill, it is important to turn the front
wheels toward the curb on a downhill grade and away from
the curb on an uphill grade. Apply the parking brake before
placing the gear selector in PARK, otherwise the load on
the transmission locking mechanism may make it difficult
to move the gear selector out of PARK. The parking brake
should always be applied whenever the driver is not in the
vehicle.
If exceptional circumstances should make it necessary to
engage the parking brake while the vehicle is in motion,
push on the EPB switch for as long as engagement is
desired. The Brake Warning Light will illuminate, and a
continuous chime will sound. The rear stop lamps will also
be illuminated automatically while the vehicle remains in
motion.To disengage the parking brake while the vehicle is in
motion, release the switch. If the vehicle is brought to a
complete stop using the parking brake, when the vehicle
reaches approximately 3 mph (4.8 km/h), the parking
brake will remain engaged.
In the unlikely event of a malfunction of the EPB system, a
yellow EPB Warning Light will illuminate. This may be
accompanied by the Brake Warning Light flashing. In this
case, urgent service of the EPB system is required. Do not
rely on the parking brake to hold the vehicle stationary.
Auto Park Brake
The Electric Park Brake (EPB) can be programmed to be
applied automatically whenever the vehicle is at a
standstill and the automatic transmission is placed in
PARK. Auto Park Brake is enabled and disabled by
customer selection through the customer programmable
features
Úpage 158.
SafeHold
SafeHold is a safety feature of the Electric Park Brake
(EPB) system that will engage the parking brake
automatically if the vehicle is left unsecured. If the
automatic transmission is not in PARK, the seat belt is
unbuckled, the driver door is open, the vehicle is at a
standstill, and there is no attempt to press the brake pedal
or accelerator pedal, the parking brake will automatically
engage to prevent the vehicle from rolling.
SafeHold can be temporarily bypassed by pushing the EPB
while the driver door is open and 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 cycled to the OFF position and back to ON again.
WARNING!

Never use the PARK position as a substitute for the
parking brake. Always apply the parking brake fully
when parked to guard against vehicle movement and
possible injury or damage.
 When exiting the vehicle, always make sure the igni -
tion is in the OFF position, remove the key fob from
the vehicle, and lock your vehicle.
 Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing children to
be in a vehicle unattended is dangerous for a
number of reasons. A child or others could be seri -
ously or fatally injured. Children should be warned
not to touch the parking brake, brake pedal or the
transmission 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 ACC or ON/RUN position. A child
could operate power windows, other controls, or
move the vehicle.
Be sure the parking brake is fully disengaged before
driving; failure to do so can lead to brake failure and
a collision.
 Always fully apply the parking brake when leaving
your vehicle, or it may roll and cause damage or
injury. Also be certain to leave the transmission in
PARK. Failure to do so may allow the vehicle to roll
and cause damage or injury.
 Driving the vehicle with the parking brake engaged,
or repeated use of the parking brake to slow the
vehicle may cause serious damage to the brake
system.
CAUTION!
If the Brake System Warning Light remains on with the
parking brake released, a brake system malfunction is
indicated. Have the brake system serviced by an
authorized dealer immediately.
WARNING!

23_RUP_OM_EN_USC_t.book Page 116

STARTING AND OPERATING117
(Continued)
(Continued)
Brake Service Mode
We recommend having your brakes serviced by an
authorized dealer. You should only make repairs for which
you have the knowledge and the right equipment. You
should only enter Brake Service Mode during brake
service.
When servicing your rear brakes, it may be necessary for
you or your technician to push the rear piston into the rear
caliper bore. With the Electric Park Brake (EPB) system,
this can only be done after retracting the EPB actuator.
Fortunately, actuator retraction can be done easily by
entering Brake Service in your vehicle
Úpage 158. This
menu-based system will guide you through the steps
necessary to retract the EPB actuator in order to perform
rear brake service.
Brake Service has requirements that must be met in order
to be activated:
 The vehicle must be at a standstill.
 The parking brake must be unapplied.
 The transmission must be in PARK or NEUTRAL.
While in Brake Service, the EPB Warning Light will flash
continuously while the ignition switch is ON.
When brake service work is complete, the following steps
must be followed to reset the parking brake system to
normal operation:
 Ensure the vehicle is at a standstill.
 Press the brake pedal with moderate force.
 Apply the EPB.
AUTOMATIC TRANSMISSION
You must press and hold the brake pedal while shifting out
of PARK.
WARNING!
You can be badly injured working on or around a motor
vehicle. Do only that service work for which you have
the knowledge and the right equipment. If you have any
doubt about your ability to perform a service job, take
your vehicle to a competent mechanic.
WARNING!
Never use the PARK position as a substitute 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 trans -
mission gear selector out of PARK with the brake
pedal released. Make sure the transmission is in
PARK before exiting the vehicle.
 The transmission may not engage PARK if the vehicle
is moving. Always bring the vehicle to a complete
stop before shifting to PARK, and verify that the
transmission gear position indicator solidly indicates
PARK (P) without blinking. Ensure that the vehicle is
completely stopped, and the PARK position is prop -
erly indicated, before exiting the vehicle.

 It is dangerous to shift out of PARK or NEUTRAL 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.

 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
transmission is locked in PARK, securing the vehicle
against unwanted movement.
 When exiting the vehicle, always make sure the igni -
tion 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 children to
be in a vehicle unattended is dangerous for a
number of reasons. A child or others could be seri -
ously or fatally injured. Children should be warned
not to touch the parking brake, brake pedal or the
transmission gear selector.
WARNING!
4

23_RUP_OM_EN_USC_t.book Page 117

STARTING AND OPERATING129
ACC Operation At Stop
In the event that the ACC system brings your vehicle to a
standstill while following the vehicle in front, your vehicle
will resume motion, without the need for any driver action,
if the vehicle in front starts moving within two seconds.
If the vehicle in front does not start moving within two
seconds of your vehicle coming to a standstill, the driver
will either have to push the RES (resume) button, or apply
the accelerator pedal to reengage the ACC to the existing
set speed.
NOTE:After the ACC system holds your vehicle at a standstill for
approximately three consecutive minutes, the parking
brake will be activated, and the ACC system will be
canceled.
While the ACC system 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 canceled.
Display Warnings And Maintenance
“WIPE FRONT RADAR SENSOR” WARNING
The “ACC/AEB 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
show “ACC/AEB Unavailable Wipe Front Radar Sensor”
and the system will deactivate.
The “ACC/AEB Unavailable Wipe Front Radar Sensor”
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/AEB 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 malfunction 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 aftermarket
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/AEB Unavailable Wipe Front Radar Sensor”
message occurs frequently (e.g. more than once on every
trip) without any snow, rain, mud, or other obstructions,
have the radar sensor realigned at an authorized dealer.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.
4

23_RUP_OM_EN_USC_t.book Page 129

STARTING AND OPERATING147
Each axle GAWR is determined by the components in the
system with the lowest load carrying capacity (axle,
springs, tires or wheels). Heavier axles or suspension
components sometimes specified by purchasers for
increased durability do not necessarily increase the
vehicle's GVWR.
Tire Size
The tire size on the Vehicle Certification Label represents
the actual tire size on your vehicle. Replacement tires
must be equal to the load capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weight
values are determined by weighing your vehicle on a
commercial scale before any occupants or cargo are
added.
Loading
The actual total weight and the weight of the front and rear
of your vehicle at the ground can best be determined by
weighing it when it is loaded and ready for operation.
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
NOTE:Trailer towing is not permitted for the Plug-in Hybrid
Electric Vehicle (PHEV).
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)
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
Úpage 146.
WARNING!
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.
4

23_RUP_OM_EN_USC_t.book Page 147

STARTING AND OPERATING151
(Continued)
TRAILER AND TONGUE WEIGHT
Never exceed the maximum tongue weight stamped on
your fascia/bumper or trailer hitch.

Weight Distribution

Consider the following items when computing the weight
on the rear axle of the vehicle:
The tongue weight of the trailer.
 The weight of any other type of cargo or equipment 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 dealer-installed options must
be considered as part of the total load on your vehicle
Úpage 288.
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”
Úpage 259. 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 over -
load your vehicle or trailer. Overloading can cause a
loss of control, poor performance or damage to
brakes, axle, engine, transmission, steering, suspen -
sion, 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.
 Vehicles with trailers should not be parked on a
grade. When parking, apply the parking brake on the
tow vehicle. Put the tow vehicle transmission in
PARK. For four-wheel drive vehicles, make sure the
transfer case is not in NEUTRAL. Always, block or
"chock" the trailer wheels.
 GCWR must not be exceeded.
 Total weight must be distributed between the tow
vehicle and the trailer such that the following four
ratings are not exceeded :
 GVWR
 GTW
 GAWR
 Tongue weight rating for the trailer hitch utilized
WARNING!
4

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154STARTING AND OPERATING
RECREATIONAL TOWING (BEHIND MOTORHOME)
TOWING THIS VEHICLE BEHIND ANOTHER VEHICLE
NOTE:
To avoid inadvertent Electric Park Brake (EPB) engage -
ment, you must ensure that the Auto Park Brake
feature is disabled before towing this vehicle (if rear
wheels are on the ground). The Auto Park Brake feature
is enabled or disabled via the customer programmable
features
Úpage 158.
 When towing your vehicle, always follow applicable
state and provincial laws. Contact state and provincial
Highway Safety offices for additional details.
 If your vehicle is disabled and in need of commercial
towing service, for further information
Úpage 256.
DO NOT flat tow this vehicle. Damage to the drivetrain will
result. Recreational Towing
Front-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 parking brake.
4. Place the transmission in PARK.
5. Turn the ignition OFF.
Towing Condition Wheel OFF The Ground FWD ModelsAWD Models
Flat Tow NONENOT ALLOWED NOT ALLOWED
Dolly Tow Front
OKNOT ALLOWED
Rear NOT ALLOWED NOT ALLOWED
On Trailer ALLOKOK
CAUTION!
DO NOT flat tow this vehicle. Damage to the drive -
train will result. If this vehicle requires towing, make
sure the drive wheels are OFF the ground.
 Ensure that the EPB is released, and remains
released, while being towed.
 Towing this vehicle in violation of the above require -
ments can cause severe transmission damage.
Damage from improper towing is not covered under
the New Vehicle Limited Warranty.

23_RUP_OM_EN_USC_t.book Page 154