2023 JEEP WAGONEER ECU

124STARTING AND OPERATING
If exceptional circumstances should make it necessary to
engage the parking brake while the vehicle is in motion,
maintain upward pressure 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 (5 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
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 is at a standstill 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
Úpage 211.
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.
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 is in ON/RUN.
The parking brake will automatically engage if all of the
following conditions are met:
 The vehicle is at a standstill.
 There is no attempt to press the brake pedal or accel -
erator pedal.
 The seat belt is unbuckled.
 The driver’s door is open. SafeHold can be temporarily bypassed by pushing the EPB
switch while the driver’s door is open. 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 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 AUTO HOLD button located on the switch
bank.

AUTO HOLD Switch

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!
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. Be
sure the parking brake is fully disengaged before
driving; failure to do so can lead to brake failure and a
collision.

23_WS_OM_EN_USC_t.book Page 124

126STARTING AND OPERATING
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.
NOTE:The transmission is NOT locked in PARK when the ignition
is in the ON/RUN position (even though the engine will be
off). Ensure that the transmission is in PARK, and the
ignition is OFF (not in ON/RUN position) before exiting the
vehicle.
BRAKE/TRANSMISSION SHIFT
I
NTERLOCK (BTSI) SYSTEM
This vehicle is equipped with a BTSI system that holds the
transmission gear selector in PARK unless the brakes are
applied. To shift the transmission out of PARK, the engine
must be running and the brake pedal must be pressed.
The brake pedal must also be pressed to shift from
NEUTRAL into DRIVE or REVERSE when the vehicle is
stopped or moving at low speeds.
8-SPEED AUTOMATIC TRANSMISSION
The transmission is controlled using a rotary electronic
gear selector located on the center console. The
transmission gear range (PRND) is displayed both above
the gear selector and in the instrument cluster. To select
a gear range, simply rotate the gear selector. You must
press the brake pedal to shift the transmission out of
PARK (or NEUTRAL, when the vehicle is stopped or moving
at low speeds). To shift past multiple gear ranges at once
(such as PARK to DRIVE), simply rotate the gear selector
to the appropriate detent. Select the DRIVE range for
normal driving.
NOTE:In the event of a mismatch between the gear selector
position and the actual transmission gear (for example,
driver selects PARK while driving), the position indicator
will blink continuously until the selector is returned to the
proper position, or the requested shift can be completed.

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.
 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 (R) only after
the vehicle has come to a complete stop.
 Do not shift between PARK, REVERSE, NEUTRAL, or
DRIVE (D) when the engine is above idle speed.
 Before shifting into any gear, make sure your foot is
firmly pressing the brake pedal.

23_WS_OM_EN_USC_t.book Page 126

178STARTING AND OPERATING
VEHICLE LOADING
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.
PAYLOAD
The payload of a vehicle is defined as the allowable weight
a vehicle can carry, including the weight of the driver, all
passengers, options and cargo.
GROSS AXLE WEIGHT RATING (GAWR)
The GAWR is the maximum permissible load on the front
and rear axles. The load must be distributed in the cargo
area so that the GAWR of each axle is not exceeded.
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 or GAWR.
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 axles.
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.
NOTE:

Improper weight distributions can have an adverse
effect on the way your vehicle steers and handles and
the way the brakes operate.
 Air suspension vehicle may limit off-road heights if
loaded beyond recommended values for vehicle GVWR
and GAWR.
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.
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.

23_WS_OM_EN_USC_t.book Page 178

STARTING AND OPERATING181
RECOMMENDED DISTRIBUTION HITCH
ADJUSTMENT — NON-AIR SUSPENSION
EQUIPPED VEHICLES

1. Verify that the vehicle is at the normal ride height.

2. Position the vehicle on a level surface in preparation
to connect to the trailer (do not connect the trailer).
3. Measure the height from the top of the front wheel opening on the fender to the ground; this is height H1.

Measuring Height (H)

4. Attach the loaded trailer to the vehicle without the weight distribution bars connected.
5. Ensure the trailer is properly secured to the hitch, including the safety chains, lighting, and trailer brake
controls.
6. Cautiously drive the vehicle and trailer at 20-25 mph (30-40 km/h) for approximately 3 miles (5 km) to
re-level the suspension.
7. Park the vehicle and trailer on a level surface.
8. Measure the height from the top of the front wheel opening on the fender to the ground; this is height H2.
9. Install and adjust the tension in the weight-distributing bars per the manufacturers’
recommendations so that the height of the front
fender is approximately (H2-H1)/2+H1
(about 1/2 the difference between H2 and H1 above
normal ride height [H1]). 10. Perform a visual inspection of the trailer and
weight-distributing hitch to confirm the manufac -
turers’ recommendations have been met.
11. The vehicle can now be driven.
NOTE:For all towing conditions, we recommend towing with
TOW/HAUL mode engaged (if equipped).
Measurement Example Example Height (mm)
H1
925
H2 946
H2-H1 21
(H2-H1)/2 10.5
(H2-H1)/2 + H1 935.5
4

23_WS_OM_EN_USC_t.book Page 181

STARTING AND OPERATING185
(Continued)
TRAILER AND TONGUE WEIGHT
Never exceed the maximum tongue weight stamped on
your 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.
Refer to the Tire And Loading Information Placard for the
maximum combined weight of occupants and cargo for
your vehicle.
TOWING REQUIREMENTS
To promote proper break-in of the new vehicle drivetrain
components, the following guidelines are recommended. Perform the maintenance listed in the Scheduled
Servicing
Úpage 309. When towing a trailer, never
exceed the GAWR or GCWR ratings.
WARNING!
Always load a trailer with 60% of the weight in the front
of the trailer. This places 10% of the GTW on the tow
hitch of your vehicle. Loads balanced over the wheels or
heavier in the rear can cause the trailer to sway
severely side to side which will cause loss of control of
the vehicle and trailer. Failure to load trailers heavier in
front is the cause of many trailer collisions.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
(P). For four-wheel drive vehicles, make sure the
transfer case is not in NEUTRAL (N). Always, block or
"chock" the trailer wheels.
 GCWR must not be exceeded.
4

23_WS_OM_EN_USC_t.book Page 185

190STARTING AND OPERATING
RECREATIONAL TOWING (BEHIND MOTORHOME)
TOWING THIS VEHICLE BEHIND ANOTHER VEHICLE
NOTE:
When towing your vehicle, always follow applicable
state and provincial laws. Contact state and provincial
Highway Safety offices for additional details.
 Vehicles equipped with Quadra-Lift must be placed in
Transport Mode before tying them down (from the
body) on a trailer or flatbed truck
Úpage 132. If the
vehicle cannot be placed in Transport mode (for
example, engine will not run), tie-downs should be
fastened over the tires using specific straps (not to the
body). Failure to follow these instructions may cause
fault codes to be set and/or cause loss of proper
tie-down tension.
RECREATIONAL TOWING — TWO-WHEEL
D
RIVE MODELS
DO NOT flat tow this vehicle. Damage to the drivetrain will
result.
Recreational towing (for two-wheel drive models) is
allowed ONLY if the rear wheels are OFF the ground. This
may be accomplished using a tow dolly or vehicle trailer. If
using a tow dolly, follow this procedure:

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

NOTE:If vehicle is equipped with Quadra-Lift air suspension,
ensure the vehicle is set to Normal Ride Height.
2. Drive the rear wheels onto the tow dolly.
3. Apply the Electric Park Brake. Shift the transmission into PARK.
4. Turn the ignition OFF.
Towing Condition Wheels OFF The Ground Two-Wheel Drive Models Four-Wheel Drive Models
Without 4WD LOW Range Four-Wheel Drive Models
With 4WD LOW Range
Flat Tow NONENOT ALLOWEDNOT ALLOWEDSee Instructions

Transmission in PARK
 Transfer case in N (Neutral)
 Tow in forward direction
Dolly Tow Front
NOT ALLOWEDNOT ALLOWEDNOT ALLOWED
Rear OKNOT ALLOWEDNOT ALLOWED
On Trailer ALLOKOKOK

23_WS_OM_EN_USC_t.book Page 190

STARTING AND OPERATING191
(Continued)
5. Properly secure the rear wheels to the dolly, following
the dolly manufacturer’s instructions.
6. Install a suitable clamping device, designed for towing, to secure the front wheels in the straight
position.
RECREATIONAL TOWING —
Q
UADRA-TRAC I (SINGLE-SPEED
T
RANSFER CASE) FOUR-WHEEL DRIVE
M
ODELS
Recreational towing is not allowed. These models do not
have a N (Neutral) position in the transfer case.
NOTE:This vehicle may be towed on a flatbed or vehicle trailer
provided all four wheels are OFF the ground.
RECREATIONAL TOWING —
Q
UADRA–TRAC II/QUADRA–DRIVE II
F
OUR-WHEEL DRIVE MODELS
The transfer case must be shifted into N (Neutral) and the
transmission must be in PARK (P) for recreational towing.
The N (Neutral) selection button is located by the selector
switch.
Shifting Into N (Neutral)
CAUTION!
Towing with the rear wheels on the ground will cause
severe transmission damage. Damage from improper
towing is not covered under the New Vehicle Limited
Warranty.
CAUTION!
Towing this vehicle in violation of the above
requirements can cause severe transmission and/or
transfer case damage. Damage from improper towing is
not covered under the New Vehicle Limited Warranty.
CAUTION!
 DO NOT dolly tow any four-wheel drive vehicle.
Towing with only one set of wheels on the ground
(front or rear) will cause severe transmission and/or
transfer case damage. Tow with all four wheels either
ON the ground, or OFF the ground (using a vehicle
trailer).
 Tow only in a forward direction. Towing this vehicle
backwards can cause severe damage to the transfer
case.
 The transmission must be in PARK for recreational
towing.
 Before recreational towing, perform the procedure
outlined under “Shifting into N (Neutral)” to be
certain that the transfer case is fully in N (Neutral).
Otherwise, internal damage will result.
Towing this vehicle in violation of the above require -
ments can cause severe transmission and/or
transfer case damage. Damage from improper
towing is not covered under the New Vehicle Limited
Warranty.
 Do not use a bumper-mounted clamp-on tow bar on
your vehicle. The bumper face bar will be damaged.
WARNING!
You or others could be injured or killed if you leave the
vehicle unattended with the transfer case in the N
(Neutral) position without first fully engaging the
parking brake. The transfer case N (Neutral) position
disengages both the front and rear driveshafts from the
powertrain and will allow the vehicle to roll, even if the
transmission is in PARK. The parking brake should
always be applied when the driver is not in the vehicle.
CAUTION!
It is necessary to follow these steps to be certain that
the transfer case is fully in N (Neutral) before
recreational towing to prevent damage to internal parts.
CAUTION!
4

23_WS_OM_EN_USC_t.book Page 191

196
MULTIMEDIA
UCONNECT SYSTEMS
For detailed information about your Uconnect 5/5 NAV
With 10.1-inch Display or Uconnect 5 NAV With 12-inch
Display system, refer to your Uconnect Radio Instruction
Manual.
NOTE:Uconnect screen images are for illustration purposes only
and may not reflect exact software for your vehicle.
CYBERSECURITY
Depending on applicability, your vehicle may be able to
send or receive information from a wired or wireless
network. This information allows systems and features in
your vehicle to function properly.Your vehicle may be equipped with certain security
features to reduce the risk of unauthorized and unlawful
access to vehicle systems and wireless communications.
Vehicle software technology continues to evolve over time
and FCA US LLC, working with its suppliers, evaluates and
takes appropriate steps as needed. As always, if you
experience unusual behavior, contact an authorized
dealer immediately,
Úpage 378, or refer to your
Uconnect Radio Instruction Manual for additional contact
information.
The risk of unauthorized and unlawful access to your
vehicle systems may still exist, even if the most recent
version of vehicle software (such as Uconnect software) is
installed.
NOTE:To help further improve user experience, features,
stability, etc., and minimize the potential risk of a security
breach, vehicle owners should routinely check
www.driveuconnect.com (US Residents) or www.driveuco -
nnect.ca (Canadian Residents) to learn about available
Uconnect software updates.
WARNING!
 ONLY insert trusted media devices/components into
your vehicle. Media of unknown origin could possibly
contain malicious software, and if installed in your
vehicle, it may increase the possibility for vehicle
systems to be breached.
 As always, if you experience unusual vehicle
behavior, contact an authorized dealer immediately.

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