engine JEEP WAGONEER 2023 Repair Manual

184STARTING AND OPERATING
TRAILER HITCH RECEIVER COVER
R
EMOVAL — IF EQUIPPED
Your vehicle may be equipped with a trailer hitch receiver
cover, this must be removed to access the trailer hitch
receiver. This cover is located at the bottom center of the
rear fascia/bumper.

1. Turn the three locking retainers located at the
bottom of the hitch receiver cover a quarter turn
counterclockwise and pull bottom of the hitch
receiver cover outward (towards you).

2. Pull the bottom of the cover outward (towards you) then downwards to disengage the tabs located at the
top of the hitch receiver cover to remove.

Hitch Receiver Cover

To reinstall the cover after towing repeat the procedure in
reverse order.
NOTE:Be sure to engage all tabs and fully seat the hitch receiver
cover in the fascia/bumper prior to installation of the
quarter turn fasteners.
Wagoneer 4x4 3.0L SO
1233.5512,300 lb
(5,579 kg) 40 sq ft (3.72 sq m) 5,980 lb (2,713 kg) 598 lb (271 kg)
Wagoneer 4x2 & 4x4 (Max Tow) 3.0L SO
1233.9216,500 lb
(7,484 kg) 60 sq ft (5.57 sq m) 10,000 lb
(4,536 kg) 1,000 lb (454 kg)
Grand Wagoneer 4x4 6.4L
1233.9215,000 lb
(6,803 kg) 55 sq ft (5.11 sq m) 8,370 lb (3,797 kg) 837 lb (380 kg)
Grand Wagoneer 4x4 (Max Tow) 6.4L
1233.9216,600 lb
(7,529 kg) 55 sq ft (5.11 sq m) 9,930 lb (4,504 kg) 993 lb (450 kg)
Grand Wagoneer 4x4 3.0L HO
1233.9212,300 lb
(5,579 kg) 40 sq ft (3.72 sq m) 5,620 lb (2,563 kg) 562 lb (255 kg)
Grand Wagoneer 4x4 (Max Tow) 3.0L HO
1233.9216,500 lb
(7,484 kg) 55 sq ft (5.11 sq m) 9,880 lb (4,482 kg) 988 lb (448 kg)
Model
Engine Wheel Base (in) Axle Ratio GCWR Frontal Area Max GTW Max TW
1 — Hitch Receiver Cover
2 — Locking Retainers

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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.
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STARTING AND OPERATING189

Seven-Pin Connector

TOWING TIPS
Before towing, practice turning, stopping, and backing up
the trailer in an area located away from heavy traffic. If
equipped with Quadra-Lift air suspension, the automatic
Entry/Exit feature may be disabled through the Uconnect
Touchscreen Radio to prevent vehicle and trailer
movement when gear selector is moved to PARK.
Automatic Transmission
Select the DRIVE (D) range when towing. The transmission
controls include a drive strategy to avoid frequent shifting
when towing. However, if frequent shifting does occur
while in DRIVE, you can use the Electronic Range Select
(ERS) shift control to manually select a lower gear.
NOTE:Using a lower gear while operating the vehicle under heavy
loading conditions, will improve performance and extend
transmission life by reducing excessive shifting and heat
build-up. This action will also provide better engine
braking.
Cruise Control — If Equipped
Do not use on hilly terrain or with heavy loads.
 When using the Cruise Control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
 Use Cruise Control in flat terrain and with light loads to
maximize fuel efficiency.
1 — Backup Lamps
2 — Running Lamps
3 — Left Stop/Turn
4 — Ground
5 — Battery
6 — Right Stop/Turn
7 — Electric Brakes
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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

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192STARTING AND OPERATING
Use the following procedure to prepare your vehicle for
recreational towing:

1. Bring the vehicle to a complete stop on level ground,
with the engine running.

2. Press and hold the brake pedal.
3. Shift the transmission into NEUTRAL.
4. If vehicle is equipped with Quadra-Lift air suspension, ensure the vehicle is set to Normal Ride Height.
NOTE:
Steps 1 through 4 are requirements that must be
met before pushing the N (Neutral) button, and
must continue to be met until the shift has been
completed. If any of these requirements are not
met before pushing the N (Neutral) button or are
no longer met during the shift, then the N (Neutral)
indicator light will flash continuously until all
requirements are met or until the N (Neutral)
button is released.
 The ignition must be in the ON/RUN position for a
shift to take place and for the position indicator
lights to be operable. If the ignition is not in the
ON/RUN position, the shift will not take place and
no position indicator lights will be on or flashing.
 A flashing N (Neutral) position indicator light indi-
cates that shift requirements have not been met. 
If the vehicle is equipped with Quadra-Lift air
suspension, the engine should be started and left
running for a minimum of 60 seconds (with all the
doors closed) at least once every 24 hours. This
process allows the air suspension to adjust the
vehicle’s ride height to compensate for tempera -
ture effects.
 Engaging/disengaging of the Electric Park Brake
requires the ignition to be in the ON/RUN position.
5. Using a ballpoint pen or similar object, push and hold the recessed transfer case N (Neutral) button
(located by the selector switch) for five seconds. The
light behind the N symbol will begin to blink red,
indicating shift in progress. The light will stop blinking
(stay on solid) when the shift to N (Neutral) is
complete. A “4WD Neutral Warning Vehicle May Move
Even in Park” message will appear in the instrument
cluster.

N (Neutral) Button

6. After the shift is completed and the N (Neutral) light stays on, release the N (Neutral) button.
7. Shift the transmission into REVERSE or DRIVE.
8. Release the brake pedal for five seconds and ensure that there is no vehicle movement.
9. Press and hold the brake pedal. Shift the transmission back into NEUTRAL.
10. Apply the Electric Park Brake.
11. With the transmission and transfer case in N (Neutral), push and hold the ENGINE START/STOP
button until the engine turns off. Ensure vehicle is in
RUN position with the engine off.
12. Place the transmission gear selector in PARK. Release the brake pedal.
13. Attach the vehicle to the tow vehicle using a suitable tow bar.
14. Release the Electric Park Brake. Ensure vehicle is in RUN position with the engine off.
15. Push the ENGINE START/STOP button twice (without pressing the brake pedal), to turn the ignition to the
off position.

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STARTING AND OPERATING193
Shifting Out Of N (Neutral)
Use the following procedure to prepare your vehicle for
normal usage:

1. Bring the vehicle to a complete stop, leaving it
connected to the tow vehicle.

2. Apply the Electric Park Brake.
3. Start the engine.
NOTE:
 Steps 1 through 5 are requirements that must be
met before pushing the N (Neutral) button, and
must continue to be met until the shift has been
completed. If any of these requirements are not
met before pushing the N (Neutral) button or are
no longer met during the shift, the N (Neutral) indi -
cator light will flash continuously until all require -
ments are met or until the N (Neutral) button is
released.
 The ignition must be in the ON/RUN position for a
shift to take place and for the position indicator
lights to be operable. If the ignition is not in the
ON/RUN position, the shift will not take place and
no position indicator lights will be on or flashing.
 A flashing N (Neutral) position indicator light indi-
cates that shift requirements have not been met.
4. Press and hold the brake pedal.
5. Shift the transmission into NEUTRAL. 6. Using a ballpoint pen or similar object, push and hold
the recessed transfer case N (Neutral) button
(located by the selector switch) for two seconds.

N (Neutral) Button

7. When the N (Neutral) indicator light turns off, release the N (Neutral) button. After the N (Neutral) button
has been released, the transfer case will shift to the
position indicated by the selector switch.
8. Shift the transmission into PARK. Turn the engine off.
9. Release the brake pedal.
10. Disconnect vehicle from the tow vehicle.
11. Start the engine.
12. Press and hold the brake pedal.
13. Release the Electric Park Brake.
14. Shift the transmission into REVERSE or DRIVE, release the brake pedal, and check that the vehicle
operates normally.
DRIVING TIPS
ON-ROAD DRIVING TIPS
Utility vehicles have higher ground clearance and a
narrower track to make them capable of performing in a
wide variety of off-road applications. Specific design
characteristics give them a higher center of gravity than
conventional passenger cars.
An advantage of the higher ground clearance is a better
view of the road, allowing you to anticipate problems. They
are not designed for cornering at the same speeds as
conventional passenger cars any more than low-slung
sports cars are designed to perform satisfactorily in
off-road conditions. Avoid sharp turns or abrupt
maneuvers. As with other vehicles of this type, failure to
operate this vehicle correctly may result in loss of control
or vehicle rollover.
OFF-ROAD DRIVING TIPS
Quadra-Lift — If Equipped
When off-roading, it is recommended that the lowest
useable vehicle height that will clear the current obstacle
or terrain be selected. The vehicle height should then be
raised as required by the changes in terrain.
The Selec-Terrain switch will automatically change the
vehicle to the optimized height based on the Selec-Terrain
switch position. The vehicle height can be changed from
the default height for each Selec-Terrain mode by normal
use of the air suspension switches
Úpage 129.
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194STARTING AND OPERATING
When To Use 4WD LOW — If Equipped
When off-road driving, shift to 4WD LOW for additional
traction. This range should be limited to extreme
situations such as deep snow, mud, or sand where
additional low speed pulling power is needed. Vehicle
speeds in excess of 25 mph (40 km/h) should be avoided
when in 4WD LOW.
Driving Through Water
Although your vehicle is capable of driving through water,
there are a number of precautions that must be
considered before entering the water.
NOTE:Your vehicle is capable of water fording in up to 20 inches
(51 cm) of water, while crossing small rivers or streams. To
maintain optimal performance of your vehicle's heating
and ventilation system it is recommended to switch the
system into recirculation mode during water fording. Driving through water more than a few inches/
centimeters deep will require extra caution to ensure
safety and prevent damage to your vehicle. If you must
drive through water, try to determine the depth and the
bottom condition (and location of any obstacles) prior to
entering. Proceed with caution and maintain a steady
controlled speed less than 5 mph (8 km/h) in deep water
to minimize wave effects.
Flowing Water
If the water is swift flowing and rising (as in storm run-off),
avoid crossing until the water level recedes and/or the
flow rate is reduced. If you must cross flowing water avoid
depths in excess of 9 inches (23 cm). The flowing water
can erode the streambed, causing your vehicle to sink into
deeper water. Determine exit point(s) that are
downstream of your entry point to allow for drifting.
Standing Water
Avoid driving in standing water deeper than 24 inches
(60 cm), and reduce speed appropriately to minimize
wave effects. Maximum speed is 5 mph (8 km/h).Maintenance
After driving through deep water, inspect your vehicle
fluids and lubricants (engine oil, transmission oil, axle,
transfer case) to ensure the fluids have not been
contaminated. Contaminated fluid (milky, foamy in
appearance) should be flushed/changed as soon as
possible to prevent component damage.
Driving In Snow, Mud And Sand
In heavy snow, when pulling a load, or for additional
control at slower speeds, shift the transmission to a low
gear and shift the transfer case to 4WD LOW if necessary
Úpage 129. Only shift into a lower gear to maintain
forward motion. Over-revving the engine can spin the
wheels and traction will be lost.
Avoid abrupt downshifts on icy or slippery roads, because
engine braking may cause skidding and loss of control.
Hill Climbing
NOTE:Before attempting to climb a hill, determine the conditions
at the crest and/or on the other side.
Before climbing a steep hill, shift the transmission to a
lower gear and shift the transfer case to 4WD LOW. Use
FIRST gear and 4WD LOW for very steep hills.
WARNING!
Do not drive in 4WD LOW on dry pavement; driveline
damage may result. 4WD LOW locks front and rear
drivelines together and does not allow for differential
action between the front to rear driveshafts. Driving in
4WD LOW on pavement will cause driveline binding;
use only on wet or slippery surfaces.
CAUTION!
When driving through water, do not exceed 5 mph
(8 km/h). Always check water depth before entering as
a precaution, and check all fluids afterward. Driving
through water may cause damage that may not be
covered by the New Vehicle Limited Warranty.

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STARTING AND OPERATING195
If you stall or begin to lose forward motion while climbing
a steep hill, allow your vehicle to come to a stop and
immediately apply the brakes. Restart the engine, and
shift into REVERSE (R). Back slowly down the hill, allowing
the compression braking of the engine to help regulate
your speed. If the brakes are required to control vehicle
speed, apply them lightly and avoid locking or skidding the
tires.
Remember, never drive diagonally across a hill. Always
drive straight up or down.
If the wheels start to slip as you approach the crest of a
hill, ease off the accelerator and maintain forward motion
by turning the front wheels slowly. This may provide a fresh
“bite” into the surface and will usually provide traction to
complete the climb.Traction Downhill
When descending mountains or hills, use Hill Descent
Control or Selec-Speed Control to avoid repeated heavy
braking.
If not equipped with Hill Descent Control or Selec-Speed
Control use the following procedure:
Shift the transmission into a low gear, and the transfer
case into 4WD LOW range. Let the vehicle go slowly down
the hill with all four wheels turning against engine
compression drag. This will permit you to control the
vehicle speed and direction.
When descending mountains or hills, repeated braking
can cause brake fade with loss of braking control. Avoid
repeated heavy braking by downshifting the transmission
whenever possible.
After Driving Off-Road
Off-road operation puts more stress on your vehicle than
does most on-road driving. After going off-road, it is always
a good idea to check for damage. That way you can get any
problems taken care of right away and have your vehicle
ready when you need it.
Completely inspect the underbody of your vehicle.
Check tires, body structure, steering, suspension, and
exhaust system for damage.
 Inspect the radiator for mud and debris and clean as
required. 
Check threaded fasteners for looseness, particularly
on the chassis, drivetrain components, steering, and
suspension. Retighten them, if required, and torque to
the values specified in the Service Manual.
 Check for accumulations of plants or brush. These
things could be a fire hazard. They might hide damage
to fuel lines, brake hoses, axle pinion seals, and
propeller shafts.
 After extended operation in mud, sand, water, or
similar dirty conditions, have the radiator, fan, brake
rotors, wheels, brake linings, and axle yokes inspected
and cleaned as soon as possible.
 If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a
wheel imbalance and freeing the wheels of it will
correct the situation.
WARNING!
If the engine stalls, you lose forward motion, or cannot
make it to the top of a steep hill or grade, never attempt
to turn around. To do so may result in tipping and rolling
the vehicle. Always back carefully straight down a hill in
REVERSE gear. Never back down a hill in NEUTRAL
using only the brake.
WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might not
have full braking power when you need it to prevent a
collision. If you have been operating your vehicle in dirty
conditions, get your brakes checked and cleaned as
necessary.
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MULTIMEDIA201
Phone Pop-ups Displayed In Cluster This setting will display smartphone notifications and messages in the Instrument
Cluster Display.
Message Pop-ups Displayed with Button Press This setting will turn message notifications on or off.
System Text Size This setting will allow you to change the text on the radio to “Standard”, “Large”, or
“Taller”.
Time Format This setting will allow you to set the time format (AM/PM). Sync Time With GPS must be
Off for this setting to be available. The “12 hrs” setting will set the time to a 12-hour
format. The “24 hrs” setting will set the time to a 24-hour format.
Voice Options This setting will allow you to change the voice options for the radio to “Male” or “Female”.
Wake Up Word This setting will allow you to set the system’s “Wake Up” word. An available option is “Hey
Uconnect”.
Voice Barge-in This setting will allow Voice Barge-in to be turned on or off. For more information about
Voice Barge-in, refer to your Uconnect Radio Instruction Manual.
Show Command List This setting will allow the Command List to be shown on or off.
Ambient Color Personalization This setting will redirect to a new menu that will allow you to change the ambient lighting
color in the cabin.
Radio Off Delay This setting will keep the radio on for the selected amount of time after vehicle shut off.
The available options are “0 sec”, “45 sec”, “5 min”, and “10 min”.
Radio Off with Door This setting will keep the radio on when a door is opened or until the Radio Off Delay time
is reached. The available settings are “On” and “Off”.
Key Off Power Delay This setting will keep certain electrical features running after the engine is turned off.
When any door is opened, the electronics will deactivate. The available settings are “0
sec”, “45 sec”, “5 min”, and “10 min”.
App Drawer Favoriting Pop-ups This setting will allow you to favorite app drawer pop-ups with “On” and “Off” options.
App Drawer Unfavoritings Pop-ups This setting will allow you to unfavorite app drawer pop-ups with “On” and Off” options.
New Text Message Pop-ups This setting will allow you to have pop-up notifications for new text messages. Setting
options are “On” and “Off”.
Setting Name
Description
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MULTIMEDIA213
Seats & Comfort
Hands-Free Power Liftgate This setting will use hands-free technology to automatically open or close the power
liftgate. Selectable options are “On” and “Off”.
Auto Relock This setting will lock the doors after 30 seconds of the doors remaining unlocked. The
available options are “On” and “Off”.
Setting Name
Description
When Seats & Comfort button is pressed on the touchscreen, the system displays the options related to the vehicle’s comfort systems when remote start has been activated or the
vehicle has been started.
NOTE:Depending on the vehicle’s options, feature settings may vary.
Setting NameDescription
Easy Exit Seats This setting will automatically move the driver seat rearward when the engine is shut off.
The available settings are “On” and “Off”.
Auto-On Driver Heated/Ventilated Seat & Heated Steering Wheel With Vehicle Start This setting will activate the vehicle’s comfort systems and heated seats or heated
steering wheel when the vehicle is remote started or ignition is started. The “Off” setting
will not activate the comfort systems. The “Remote Start” setting will only activate the
comfort systems when using Remote Start. The “All Start” setting will activate the comfort
systems whenever the vehicle is started.
3rd Row Seat Recline Lockout This setting will activate the 3rd Row Seat Recline Lockout. Selectable options are “Off”,
“Lock On Ignition” and “Always Locked”.
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