lock RAM 1500 2021 Manual PDF

STARTING AND OPERATING193
Front Park Assist Audible Alerts
ParkSense will turn off the Front Park Assist
audible alert (chime) after approximately three
seconds when an obstacle has been detected,
the vehicle is stationary, and brake pedal is
applied.
Adjustable Chime Volume Settings
The Front and Rear chime volume settings are
programmable through the Uconnect system
Úpage 237.
ENABLING AND DISABLING FRONT
A
ND/OR REAR PARKSENSE
Front ParkSense can be enabled and disabled
with the Front ParkSense switch.
Rear ParkSense can be enabled and disabled
with the Rear ParkSense switch.
When the Front or Rear ParkSense
switch is pushed to disable the
system, the instrument cluster display
Úpage 114 will show a vehicle
graphic of the Front or Rear ParkSense on/off
state for two seconds. When the gear selector is moved to REVERSE
and the Front or Rear system is disabled, the
instrument cluster display will show a vehicle
graphic with “OFF” on the corresponding side.
This vehicle graphic will be displayed for as long
as the vehicle is in REVERSE.
NOTE:
Arc alerts from the enabled ParkSense system,
will interrupt the five second messages, and the
instrument cluster display will show the vehicle
graphic with the corresponding arcs and “OFF”
message.
The Front or Rear ParkSense switch LED will be
on when Front or Rear ParkSense is disabled or
requires service. The Front or Rear ParkSense
switch LED will be off when the Front or Rear
system is enabled. If the Front or Rear
ParkSense switch is pushed, and the system
requires service, the Front or Rear ParkSense
switch LED will blink momentarily, and then the
LED will be on.
SERVICE THE PARKSENSE PARK ASSIST
S
YSTEM
During vehicle start up, when the ParkSense
System has detected a faulted condition, the
instrument cluster will actuate a single chime,
once per ignition cycle, and it will display the
"PARKSENSE UNAVAILABLE WIPE REAR
SENSORS", "PARKSENSE UNAVAILABLE WIPE
FRONT SENSORS", or the "PARKSENSE
UNAVAILABLE SERVICE REQUIRED" message
for five seconds. When the gear selector is
moved to REVERSE and the system has
detected a faulted condition, the instrument
cluster display will display a "WIPE OFF"
message on the corresponding blocked system
while the vehicle is in REVERSE. The system will
continue to provide arc alerts for the side that is
functioning properly.
If "PARKSENSE UNAVAILABLE WIPE REAR
SENSORS" or "PARKSENSE UNAVAILABLE WIPE
FRONT SENSORS" appears in the instrument
cluster display make sure the outer surface and
the underside of the rear fascia/bumper and/or
front fascia/bumper is clean and clear of snow,
ice, mud, dirt or other obstruction and then
cycle the ignition. If the message continues to
appear see an authorized dealer.
4

21_DT_OM_EN_USC_t.book Page 193

194STARTING AND OPERATING
NOTE:
Water from a car wash or road slush in freezing
weather may also cause sensors to become
blocked.
If the "PARKSENSE UNAVAILABLE SERVICE
REQUIRED" message appears in the instrument
cluster display, see your authorized dealer.
CLEANING THE PARKSENSE SYSTEM
Clean the ParkSense sensors with water, car
wash soap and a soft cloth. Do not use rough or
hard cloths. Do not scratch or poke the sensors.
PARKSENSE SYSTEM USAGE
P
RECAUTIONS
NOTE:
Ensure that the front and rear fascias/
bumpers are free of snow, ice, mud, dirt and
debris to keep the ParkSense system oper -
ating properly.
Jackhammers, large trucks, and other vibra -
tions could affect the performance of Park -
Sense.
When you turn Front or Rear ParkSense off,
the instrument cluster display will show a
vehicle graphic of the Front or Rear Park -
Sense on/off state for two seconds. Further -
more, once you turn Front or Rear ParkSense
off, it remains off until you turn it on again,
even if you cycle the ignition.
When you move the gear selector to the
REVERSE position and Front or Rear Park -
Sense is turned off, the instrument cluster
display will show a vehicle graphic with "OFF"
in the corresponding side. This vehicle
graphic will be displayed for as long as the
vehicle is in REVERSE.
ParkSense, when on, will reduce the volume
of the radio when it is sounding a tone.
Clean the ParkSense sensors regularly,
taking care not to scratch or damage them.
The sensors must not be covered with ice,
snow, slush, mud, dirt or debris. Failure to do
so can result in the system not working prop -
erly. The ParkSense system might not detect
an obstacle behind or in front of the fascia/
bumper, or it could provide a false indication
that an obstacle is behind or in front of the
fascia/bumper.
Use the ParkSense switch to turn the Park -
Sense system off if obstacles such as bicycle
carriers, trailer hitches, etc. are placed near
the rear fascia/bumper. Failure to do so can
result in the system misinterpreting a close
obstacle as a sensor problem, causing the
“PARKSENSE UNAVAILABLE SERVICE
REQUIRED” message to be appear in the
instrument cluster display.
ParkSense should be disabled when the tail -
gate is in the lowered or open position. A
lowered tailgate could provide a false indica -
tion that an obstacle is behind the vehicle
and could also cause a false braking event.
The Rear ParkSense system will automati -
cally disable when the system detects that a
trailer with trailer brakes has been connected
to the Integrated Trailer Brake Module.
The Front ParkSense system will automati -
cally disable if a snow plow has been
connected to the vehicle.

21_DT_OM_EN_USC_t.book Page 194

196STARTING AND OPERATING
New vehicles from the dealership must have
at least 30 miles (48 km) accumulated
before the ParkSense Active Park Assist
system is fully calibrated and performs accu -
rately. This is due to the system’s dynamic
vehicle calibration to improve the perfor -
mance of the feature.
The driver must control the vehicle’s brakes.
The automatic emergency braking feature is
NOT intended to substitute for the driver
during REVERSE maneuvers.
ENABLING AND DISABLING THE
P
ARKSENSE ACTIVE PARK ASSIST
S
YSTEM
The ParkSense Active Park Assist
system can be enabled and disabled
with the ParkSense Active Park Assist
switch, located on the switch panel
below the Uconnect display.
NOTE:
If your vehicle is equipped with a 12-inch
Uconnect display, the ParkSense Active Park
Assist switch is located above the display. To enable or disable the ParkSense Active Park
Assist system, push the ParkSense Active Park
Assist switch once (LED turns on). Pushing the
switch a second time will disable the system
(LED turns off).
The ParkSense Active Park Assist system will
turn off automatically for any of the following
conditions:
Parking maneuver is completed.
Vehicle speed is greater than 18 mph
(30 km/h) when searching for a parking
space.
Vehicle speed is greater than 5 mph (7 km/h)
during active steering guidance into the
parking space.
Steering wheel is touched during active
steering guidance into the parking space.
ParkSense Front/Rear Park Assist switch is
pushed.
Driver's door is opened.
Tailgate is opened.
Electronic Stability Control/Anti-Lock Braking
System intervention.NOTE:
The ParkSense Active Park Assist system will
allow a maximum of eight shifts between DRIVE
and REVERSE. If the maneuver cannot be
completed within eight shifts, the system will
cancel and the instrument cluster display will
instruct the driver to complete the maneuver
manually.
The ParkSense Active Park Assist system will
only operate and search for a parking space
when the following conditions are present:
Gear selector is in DRIVE.
The ignition is in the ON/RUN position.
The ParkSense Active Park Assist switch is
activated.
Driver's door is closed.
Tailgate is closed.
Vehicle speed is less than 15 mph (25 km/h).
The outer surface and the underside of the
front and rear fascias/bumpers are clean
and clear of snow, ice, mud, dirt or other
obstruction.

21_DT_OM_EN_USC_t.book Page 196

202STARTING AND OPERATING
CHANGING LANESENSE STATUS
The LaneSense system has settings to adjust
the intensity of the torque warning and the
warning zone sensitivity (Early/Medium/Late)
that you can configure through the Uconnect
system Úpage 237.
NOTE:
When enabled the system operates above
37 mph (60 km/h) and below 112 mph (180 km/h).
The warnings are disabled with use of the
turn signal.
The system will not apply torque to the
steering wheel whenever a safety system
engages (Anti-Lock Brakes, Traction Control
System, Electronic Stability Control, Forward
Collision Warning, etc.).
PARKVIEW REAR BACK UP CAMERA
The ParkView Rear Back Up Camera allows you
to see an on-screen image of the rear
surroundings of your vehicle whenever the gear
selector is put into REVERSE. The image will be
displayed on the Navigation/Multimedia radio
display screen along with a caution note to “Check Entire Surroundings” across the top of
the screen. After five seconds this note will
disappear. The ParkView Camera is located in
the center of the tailgate handle.
Manual Activation Of The Rear View
Camera:

1. Press the "Controls" button located on the bottom of the Uconnect display.

2. Press the "Back Up Camera" icon to turn the Rear View Camera system on.
NOTE:
The ParkView Rear Back Up Camera has
programmable modes of operation that may be
selected through the Uconnect system
Ú page 237.
When the vehicle is shifted out of REVERSE
(with camera delay turned off), the rear camera
mode is exited and the previous screen
appears. When the vehicle is shifted out of
REVERSE (with camera delay turned on), the
camera image will continue to be displayed for
up to 10 seconds after shifting out of REVERSE
unless the following conditions occur: The
vehicle speed exceeds 8 mph (13 km/h), the vehicle is shifted into PARK, the vehicle’s
ignition is placed in the OFF position, or the user
presses image defeat “X” to exit out of the
camera video display.
Whenever the Rear View Camera image is
activated through the "Back Up Camera" button
in the Controls menu, and the vehicle speed is
greater than, or equal to, 8 mph (13 km/h), a
display timer for the image is initiated. The
image will continue to be displayed until the
display timer exceeds 10 seconds.
NOTE:
If the vehicle speed remains below 8 mph
(13 km/h), the Rear View Camera image will
be displayed continuously until deactivated
via the touchscreen button "X", the transmis -
sion is shifted into PARK, or the ignition is
placed in the OFF position.
The touchscreen button "X" to disable display
of the camera image is made available ONLY
when the vehicle is not in REVERSE.
When enabled, active guidelines are overlaid on
the image to illustrate the width of the vehicle
and its projected back up path based on the
steering wheel position. A dashed center line
overlay indicates the center of the vehicle to

21_DT_OM_EN_USC_t.book Page 202

STARTING AND OPERATING205
If the camera delay is turned off, the camera
image will close and display the previous screen
after shifting out of REVERSE.
If active guidelines are enabled, the lines are
overlaid on the image in the Rear View to
illustrate the width of the vehicle. The view will
also include the side view mirrors and its
projected back up path based on the steering
wheel position.
There are different colored zones to indicate the
distance to the rear of the vehicle. Refer to the
chart below:
Modes Of Operation
Standard Rear View can be manually activated
by selecting “Back Up Camera” through the
Controls menu within the Uconnect system. Top View
The Top View will show in the Uconnect system
with Rear View and Front View in a split screen
display. There are integrated ParkSense arcs in
the image at the front and rear of the vehicle.
The arcs will change color from yellow to red
corresponding the distance zones to the
oncoming object.

Surround View Camera View

NOTE:
Front tires will be seen in the image when the
tires are turned.
Due to wide angle cameras in the mirrors, the
image will appear distorted.
The Top View will show which doors are open.
Open front doors will block the outside
image.
Rear View This is the default view of the system
in REVERSE and is always paired with
the Top View of the vehicle with
optional active guidelines for the
projected path when enabled.
Rear Cross Path View Pressing the Rear Cross Path soft key
will give the driver a wider angle view
of the rear camera system. The Top
View will be disabled when this is
selected.
Front View The Front View will show you what is
immediately in front of the vehicle
and is always paired with the Top View
of the vehicle.
Zone
Distance To The Rear
Of The Vehicle
Red 0 - 1 ft (0 - 30 cm)
Yellow 1 ft - 6.5 ft
(30 cm - 2 m)
Green 6.5 ft or greater
(2 m or greater)
4

21_DT_OM_EN_USC_t.book Page 205

STARTING AND OPERATING209

1. Put the vehicle in PARK and switch the
ignition off.

2. Push the center-rear edge of the fuel filler door (3 o'clock position) and release to
open.
Fuel Filler Door

3. Insert the fuel nozzle fully into the filler pipe, the nozzle opens and holds both flapper
doors while refueling.

Fuel Filler

4. When the fuel nozzle “clicks” or shuts off, the fuel tank is full. 5. Keep the nozzle in the filler for five seconds
after nozzle clicks to allow fuel to drain from
the nozzle.
6. Remove the fuel filler nozzle.
7. To close the fuel filler door, push the center-rear edge (3 o’clock position) of the
fuel filler door and then release. The fuel
filler door will latch closed.
NOTE:
In certain cold conditions, ice may prevent the
fuel filler door from opening. If this occurs,
lightly push on the fuel filler door around the
perimeter to break the ice build up.
WARNING!
Never have any smoking materials lit in or
near the vehicle when the fuel door is open
or the tank is being filled.
Never add fuel when the engine is running.
This is in violation of most state and federal
fire regulations and may cause the MIL to
turn on.
A fire may result if gasoline is pumped into
a portable container that is inside of a
vehicle. You could be burned. Always place
gas containers on the ground while filling.
CAUTION!
To avoid fuel spillage and overfilling, do not
“top off” the fuel tank after filling.
WARNING!
Always place container on the ground
before filling.
Keep the pump nozzle in contact with the
container when you are filling it.
Use only approved containers for flam -
mable liquid.
Do not leave container unattended while
filling.
A static electric charge could cause a spark
and fire hazard.
4

21_DT_OM_EN_USC_t.book Page 209

STARTING AND OPERATING221
(Continued)
NOTE:
Trailers may look different during day and night
conditions. In such cases, the trailer may need
to recalibrate.
Some trailers (such as boat trailers) will need to
recalibrate while loaded and unloaded.
NOTE:
The system may not detect a trailer in low
light conditions. In sunny conditions, the
performance may be degraded as shadows
pass over the trailer.
The driver is always responsible for safe oper -
ation of truck and trailer.
The driver is always in control of the truck as
well as the trailer and is responsible for
controlling the throttle and brakes.
The system may not function when the
camera lens is blocked, blurred (covered with
water, snow, ice, dirt, etc) and will not work
unless the tailgate is upright and fully
latched.
TOWING REQUIREMENTS
To promote proper break-in of your new vehicle
drivetrain components, the following guidelines
are recommended.
Perform the maintenance listed in the
Scheduled Servicing section for the proper
maintenance intervals Ú page 395. 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 colli -
sion.
When hauling cargo or towing a trailer, do
not overload your vehicle or trailer. Over -
loading 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.
4

21_DT_OM_EN_USC_t.book Page 221

222STARTING AND OPERATING
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.
Replacing tires with a higher load carrying
capacity will not increase the vehicle's GVWR
and GAWR limits.
For further information Ú page 443.
Towing Requirements — Trailer Brakes
Do not interconnect the hydraulic brake
system or vacuum system of your vehicle
with that of the trailer.
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 lbs (453 kg) and required for
trailers in excess of 2,000 lbs (907 kg).
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! (Continued)WARNING!
Do not connect trailer brakes to your
vehicle's hydraulic brake lines. It can over -
load 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 stop -
ping 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 lbs
(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.
21_DT_OM_EN_USC_t.book Page 222

224STARTING AND OPERATING
Adjusting GAIN
NOTE:
This should only be performed in a traffic free
environment at speeds of approximately
20–25 mph (30–40 km/h).

1. Make sure the trailer brakes are in good
working condition, functioning normally
and properly adjusted. See your trailer
dealer if necessary.

2. Hook up the trailer and make the electrical connections according to the trailer
manufacturer's instructions.
3. When a trailer is plugged in with electric or EOH brakes, the trailer connected message
should appear in the instrument cluster
display (if the connection is not recognized by the ITBM, braking functions will not be
available), the GAIN setting will illuminate
and the correct type of trailer must be
selected from the instrument cluster display
options.
4. Push the UP or DOWN button on the steering wheel until “TRAILER TOW”
appears on the screen.
5. Push the RIGHT arrow on the steering wheel to enter “TRAILER TOW”.
6. Push the UP or DOWN buttons until the Trailer Brake Type appears on the screen.
7. Push the RIGHT arrow and then push the UP or DOWN buttons until the proper Trailer
Brake Type appears on the screen. 8. In a traffic-free environment, tow the trailer
on a dry, level surface at a speed of
20–25 mph (30–40 km/h) and squeeze
the manual brake control lever completely.
9. If the trailer wheels lockup (indicated by squealing tires), reduce the GAIN setting; if
the trailer wheels turn freely, increase the
GAIN setting.
Repeat steps 8 and 9 until the GAIN setting is at
a point just below trailer wheel lockup. If towing
a heavier trailer, trailer wheel lockup may not be
attainable even with the maximum GAIN setting
of 10.
*The suggested selection may change depending on the customer preferences for braking performance. Condition of the trailer brakes, driving and road state may also affect the
selection.
Light Electric Heavy Electric Light EOHHeavy EOH
Type of Trailer Brakes Electric Trailer Brakes Electric Trailer Brakes Electric over Hydraulic
Trailer BrakesElectric over Hydraulic
Trailer Brakes
Load *Under 10,000 lbs *Above 10,000 lbs *Under 10,000 lbs *Above 10,000 lbs

21_DT_OM_EN_USC_t.book Page 224

STARTING AND OPERATING235
OFF-ROAD DRIVING TIPS
Care should be taken when attempting to climb
steep hills or driving diagonally across a hill or
slope. If natural obstacles force you to travel
diagonally up or down a hill, choose a mild angle
and keep as little side tilt as possible. Keep the
vehicle moving and make turns slowly and
cautiously. If you must back down a hill, back straight down
using REVERSE gear. Never back down in
NEUTRAL or diagonally across the hill.
When driving over sand, mud, and other soft
terrain, shift to low gear and drive steadily.
Apply the accelerator slowly to avoid spinning
the wheels.
Do not reduce the tire pressures for this type of
driving.
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 compo
-
nents, 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 imbal-
ance and freeing the wheels of it will correct
the situation.
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! (Continued)
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.
4

21_DT_OM_EN_USC_t.book Page 235