engine DODGE CHARGER 2021 Workshop Manual

116STARTING AND OPERATING
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum capacity of the front
and rear axles. Distribute the load over the front
and rear axles evenly. Make sure that you do not
exceed either front or rear GAWR Ú page 114.
Tongue Weight (TW)
The TW is the downward force exerted on the hitch
ball by the trailer. You must consider this as part of
the load on your vehicle.
Trailer Frontal Area
The frontal area is the maximum height multiplied
by the maximum width of the front of a trailer.
Trailer Sway Control (TSC)
The TSC can be a mechanical telescoping link that
can be installed between the hitch receiver and the
trailer tongue that typically provides adjustable
friction associated with the telescoping motion to
dampen any unwanted trailer swaying motions
while traveling.
If equipped, the electronic TSC recognizes a
swaying trailer and automatically applies individual
wheel brakes and/or reduces engine power to
attempt to eliminate the trailer sway.
Weight-Carrying Hitch
A weight-carrying hitch supports the trailer tongue
weight, just as if it were luggage located at a hitch
ball or some other connecting point of the vehicle.
These kinds of hitches are commonly used to tow
small and medium sized trailers.
Weight-Distributing Hitch

A weight-distributing system works by applying
leverage through spring (load) bars. They are
typically used for heavier loads to distribute trailer
tongue weight to the tow vehicle's front axle and the
trailer axle(s). When used in accordance with the
manufacturer's directions, it provides for a more
level ride, offering more consistent steering and
brake control thereby enhancing towing safety.
The addition of a friction/hydraulic sway control
also dampens sway caused by traffic and
crosswinds and contributes positively to tow
vehicle and trailer stability. Trailer sway control
and a weight distributing (load equalizing) hitch are
recommended for heavier Tongue Weights (TW) and
may be required depending on vehicle and trailer
configuration/loading to comply with Gross Axle
Weight Rating (GAWR) requirements.

WARNING!
It is important that you do not exceed the
maximum front or rear GAWR. A dangerous
driving condition can result if either rating is
exceeded. You could lose control of the vehicle
and have a collision.
WARNING!
An improperly adjusted weight-distributing
hitch system may reduce handling, stability,
braking performance, and could result in a
collision.
Weight-distributing systems may not be
compatible with surge brake couplers. Consult
with your hitch and trailer manufacturer or a
reputable Recreational Vehicle dealer for
additional information.

21_LD_OM_EN_USC_t.book Page 116

STARTING AND OPERATING117
TRAILER HITCH CLASSIFICATION
The following chart provides the industry standard for the maximum trailer weight a given trailer hitch class can tow and should be used to assist you in selecting
the correct trailer hitch for your intended towing condition.
TRAILER TOWING WEIGHTS (MAXIMUM TRAILER WEIGHT RATINGS)
Trailer towing with the 6.4L or 6.2L Supercharged engine is not recommended.
Trailer Hitch Classification Definitions
Class Max. Trailer Hitch Industry Standards
Class I - Light Duty 2,000 lb (907 kg)
Class II - Medium Duty 3,500 lb (1,587 kg)
Class III - Heavy Duty 6,000 lb (2,722 kg)
Class IV - Extra Heavy Duty 10,000 lb (4,535 kg)
Refer to the “Trailer Towing Weights (Maximum Trailer Weight Ratings)” chart for the Maximum Gross Trailer Weight (GTW) towable for your given drivetrain.
All trailer hitches should be professionally installed on your vehicle.
Engine/Transmission Frontal AreaMaximum GTWMaximum Trailer TW
3.6L Automatic 12 sq ft (1.11 sq m)1,000 lb (454 kg) 100 lb (45 kg)
5.7L Automatic 12 sq ft (1.11 sq m)1,000 lb (454 kg) 100 lb (45 kg)
Refer to local laws for maximum trailer towing speeds.
4

21_LD_OM_EN_USC_t.book Page 117

118STARTING AND OPERATING
(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 equip
-
ment put in or on your vehicle.
The weight of the driver and all passengers.
NOTE:Remember that everything put into or on the trailer
adds to the load on your vehicle. Also, additional
factory-installed options or dealer-installed options
must be considered as part of the total load on
your vehicle. Refer to the Tire And Loading Infor -
mation placard for the maximum combined weight
of occupants and cargo for your vehicle.
TOWING REQUIREMENTS
To promote proper break-in of your new vehicle
drivetrain components, the following guidelines
are recommended.CAUTION!
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.
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,
suspension, chassis structure or tires.
Safety chains must always be used between your
vehicle and trailer. Always connect the chains to
the hook retainers of the vehicle hitch. Cross the
chains under the trailer tongue and allow enough
slack for turning corners.

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. 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 :
Max loading as defined on the “Tire and
Loading Information” placard.
GTW
GAWR
Tongue weight rating for the trailer hitch
utilized.
WARNING!

21_LD_OM_EN_USC_t.book Page 118

STARTING AND OPERATING119
Perform the maintenance listed in the “Scheduled
Servicing” for the proper maintenance intervals
Ú page 245. When towing a trailer, never exceed
the GAWR or GCWR ratings.
Towing Requirements — Tires
Do not attempt to tow a trailer while using a
compact spare tire.
Do not drive more than 50 mph (80 km/h) when
towing while using a full size spare tire.
Proper tire inflation pressures are essential to
the safe and satisfactory operation of your
vehicle.
Check the trailer tires for proper tire inflation
pressures before trailer usage.
Check for signs of tire wear or visible tire
damage before towing a trailer. For the proper
inspection procedure.
Replacing tires with a higher load carrying
capacity will not increase the vehicle's GVWR
and GAWR limits.
For further information Ú page 275.
Towing Requirements — Trailer Brakes
Do not interconnect the hydraulic brake system
or vacuum system of your vehicle with that of
the trailer. This could cause inadequate braking
and possible personal injury.
An electronically actuated trailer brake
controller is required when towing a trailer with
electronically actuated brakes. When towing a
trailer equipped with a hydraulic surge actuated
brake system, an electronic brake controller is
not required.
Trailer brakes are recommended for trailers
over 1,000 lb (453 kg) and required for trailers
in excess of 2,000 lb (907 kg).
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!
Do not connect trailer brakes to your vehicle's
hydraulic brake lines. It can overload your
brake system and cause it to fail. You might
not have brakes when you need them and
could have an accident.
Towing any trailer will increase your stopping
distance. When towing, you should allow for
additional space between your vehicle and the
vehicle in front of you. Failure to do so could
result in an accident.
CAUTION!
If the trailer weighs more than 1,000 lb (453 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do
this could lead to accelerated brake lining wear,
higher brake pedal effort, and longer stopping
distances.
4

21_LD_OM_EN_USC_t.book Page 119

STARTING AND OPERATING121
TOWING TIPS
Before towing, practice turning, stopping, and
backing up the trailer in an area located away from
heavy traffic.
Automatic Transmission
Select the DRIVE 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 AutoStick shift control to
manually select a lower gear.
NOTE:Using a lower gear while operating the vehicle
under heavy loading conditions will improve perfor -
mance and extend transmission life by reducing
excessive shifting and heat buildup. 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.
AutoStick

When using the AutoStick shift control, select
the highest gear that allows for adequate
performance and avoid frequent downshifts.
For example, choose “5” if the desired speed can
be maintained. Choose “4” or “3” if needed to
maintain the desired speed.

To prevent excess heat generation, avoid
continuous driving at high RPM. Reduce vehicle
speed as necessary to avoid extended driving at
high RPM. Return to a higher gear or vehicle
speed when grade and road conditions allow.
RECREATIONAL TOWING (BEHIND
MOTORHOME)
Recreational towing (with all four wheels on the
ground, or using a tow dolly) is NOT ALLOWED.
The only acceptable method for towing this vehicle
(behind another vehicle) is on a vehicle trailer with
all four wheels OFF the ground.
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.4

21_LD_OM_EN_USC_t.book Page 121

STARTING AND OPERATING123
(Continued)
Shallow Standing Water
Although your vehicle is capable of driving through
shallow standing water, consider the following
Warnings and Cautions before doing so.
WARNING!
Driving through standing water limits your
vehicle’s traction capabilities. Do not exceed
5 mph (8 km/h) when driving through
standing water.
Driving through standing water limits your
vehicle’s braking capabilities, which increases
stopping distances. Therefore, after driving
through standing water, drive slowly and
lightly press on the brake pedal several times
to dry the brakes.
Failure to follow these warnings may result in
injuries that are serious or fatal to you, your
passengers, and others around you.
CAUTION!
Always check the depth of the standing water
before driving through it. Never drive through
standing water that is deeper than the bottom
of the tire rims mounted on the vehicle.
Determine the condition of the road or the
path that is under water and if there are any
obstacles in the way before driving through
the standing water.
Do not exceed 5 mph (8 km/h) when driving through standing water. This will minimize
wave effects.
Driving through standing water may cause
damage to your vehicle’s drivetrain compo -
nents. Always inspect your vehicle’s fluids
(i.e., engine oil, transmission, axle, etc.) for
signs of contamination (i.e., fluid that is milky
or foamy in appearance) after driving through
standing water. Do not continue to operate
the vehicle if any fluid appears contaminated,
as this may result in further damage. Such
damage is not covered by the New Vehicle
Limited Warranty.
Getting water inside your vehicle’s engine can
cause it to lock up and stall out, and cause
serious internal damage to the engine. Such
damage is not covered by the New Vehicle
Limited Warranty.
CAUTION!
4

21_LD_OM_EN_USC_t.book Page 123

134MULTIMEDIA
Seats & Comfort
Key Off Options
When Seats & Comfort button is pressed on the touchscreen, the system displays the option 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 Name Description
Auto-On Driver Heated/Ventilated Seat & Steering
Wheel With Vehicle Start This setting will activate the vehicle’s comfort system 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.
When the Key Off Options button is pressed on the touchscreen, the system displays the options related to vehicle shut off. These settings will only activate
when the ignition is set to OFF.
NOTE:Depending on the vehicle’s options, feature settings may vary.
Setting Name Description
Easy Exit SeatThis setting adjusts the seats to make exiting the vehicle easier.
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”.

Headlight Off Delay This setting will allow you to set the amount of time the headlights remain on after the vehicle has
been turned off. The “+” will increase the amount of time. The “-” will decrease the amount of time.

21_LD_OM_EN_USC_t.book Page 134

154MULTIMEDIA
You will be prompted for a specific command and
then guided through the available options.
Prior to giving a voice command, one must wait
for the beep, which follows the “Listen” prompt
or another prompt.
For certain operations, compound commands
can be used. For example, instead of saying
“Call” and then “John Smith” and then “mobile”,
the following compound command can be said:
“Call John Smith mobile.”

For each feature explanation in this section, only the
compound command form of the voice command is
given. You can also break the commands into parts
and say each part of the command when you are
asked for it. For example, you can use the compound
command form voice command “Search for John
Smith,” or you can break the compound command
form into two voice commands: “Search Contacts”
and when asked, “John Smith.” Please remember,
the Uconnect Phone works best when you talk in a
normal conversational tone, as if speaking to
someone sitting a few feet/meters away from you.

NATURAL SPEECH
Your Uconnect Phone Voice system uses a Natural
Language Voice Recognition (VR) engine.
Natural speech allows the user to speak
commands in phrases or complete sentences.
The system filters out certain non-word utterances
and sounds such as “ah” and “eh.” The system
handles fill-in words such as “I would like to”.
The system handles multiple inputs in the same
phrase or sentence such as “make a phone call”
and “to Kelly Smith”. For multiple inputs in the
same phrase or sentence, the system identifies
the topic or context and provides the associated
follow-up prompt such as “Who do you want to
call?” in the case where a phone call was
requested but the specific name was not
recognized.
The system utilizes continuous dialog. When the
system requires more information from the user, it
will ask a question to which the user can respond
without pushing the Voice Command button on the
steering wheel.
HELP COMMAND
If you need assistance at any prompt, or if you want
to know your options at any prompt, say “Help”
following the beep.
To activate the Uconnect Phone from idle, simply
push the Phone button (if active) on your steering
wheel and say a command or say “Help”. All Phone
sessions begin with a push of the VR button or the
Phone button.
CANCEL COMMAND
At any prompt, after the beep, you can say “Cancel”
and you will be returned to the main menu.
You can also push the VR button or Phone button
on your steering wheel when the system is listening
for a command and be returned to the main or
previous menu.

21_LD_OM_EN_USC_t.book Page 154

MULTIMEDIA167
Multiple Devices Connecting To The Uconnect
System — If Equipped
It is possible to have multiple devices connected to
the Uconnect system. For example, if using Android
Auto™/Apple CarPlay®, the connected device will
be used to place hands-free phone calls or send
hands-free text messages. However, another
device can also be paired to the Uconnect system,
via Bluetooth®, as an audio source, so the
passenger can stream music.
NOTE:
Apple CarPlay® and Android Auto™ can only be
launched from the front and center console USB ports.

PERFORMANCE PAGES
Performance Pages is an application that provides
a display for performance indicators, as received
from the instrument cluster, that will help you gain
familiarity with the capabilities of your vehicle in
real-time.
To access the Performance Pages, press the
Apps button on the touchscreen then press the
Performance Pages button on the touchscreen.
Press the desired button on the touchscreen to
access that specific Performance Page. The Performance Pages include the following: Home
Timers
Gauges
G-Force
Engine
DynoIf a USB drive is installed in the media hub,
press the Camera icon on the top right of the
touchscreen when using Performance Pages.
A screen shot of the page will be taken and saved
onto the USB.

Screenshot Camera Button

WARNING!

Measurement of vehicle statistics with the
Performance Pages is intended for off-highway or
off-road use only and should not be done on any
public roadways. It is recommended that these
features be used in a controlled environment and
within the limits of the law. The capabilities of the
vehicle as measured by the Performance Pages
must never be exploited in a reckless or dangerous
manner, which can jeopardize the user’s safety or
the safety of others. Only a safe, attentive, and
skillful driver can prevent accidents.

5

21_LD_OM_EN_USC_t.book Page 167

168MULTIMEDIA
The following describes each feature and its
operation:
HOME

Performance Pages — Home

When Home is selected, a series of widgets
(gauges) can be customized by the user. Follow
these steps to change a widget. Either press
directly on the widget you want to change, or:

1. Press the Settings button (gear icon) on the touchscreen to access the main menu for the
widgets.
2. Select one of the following options from the
menu:
Set Widget: Top Left
Set Widget: Top Right
Set Widget: Bottom Left
Set Widget: Bottom Right
3. After selecting a widget location, select the gauge to display:
Gauge: Oil Temp
Gauge: Oil Pressure
Gauge: Coolant Temp
Gauge: Battery Voltage
Gauge: Trans Temp — If Equipped with an
Automatic Transmission
Gauge: Boost Pressure — If Equipped
Gauge: Air/Fuel Ratio — If Equipped
Gauge: I/C Coolant Temp — If Equipped
Gauge: Intake Air Temp
Gauge: Engine Torque
Gauge: Engine Power
Gauge: G-Force
Gauge: Steering Angle
Gauge: Current Gear
Gauge: Current Speed
Timer: 0–60 mph (0–100 km/h)
Timer: 0–100 mph (0–160 km/h)
Timer: 60 ft (20 m)
Timer: 330 ft (100 m)
Timer: 1/8 Mile (200 m)
Timer: 1000 ft (300 m)
Timer: 1/4 Mile (400 m)
Timer: Braking Distance
Timer: Reaction Time

21_LD_OM_EN_USC_t.book Page 168