2021 RAM 1500 instrument cluster

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

STARTING AND OPERATING197
NOTE:
If the vehicle is driven above approximately
15 mph (25 km/h), the instrument cluster
display will instruct the driver to slow down. If
the vehicle is driven above approximately
18 mph (30 km/h), the system will cancel. The
driver must then reactivate the system by
pushing the ParkSense Active Park Assist
switch.
When pushed, the LED on the ParkSense Active
Park Assist switch will blink momentarily, and
then the LED will turn off if any of the above
conditions are not present.
PARALLEL/PERPENDICULAR PARKING
S
PACE ASSISTANCE OPERATION
When the ParkSense Active Park Assist system
is enabled, the messages “Active ParkSense
Searching - Push OK To Switch To Perpendicular
Park” or “Active ParkSense Searching - Push OK
to Switch to Parallel Park” will appear in the
instrument cluster display. Push the OK button
on the left side of the steering wheel to change
your parking space setting. You can switch
between perpendicular and parallel parking
maneuvers.
Press OK to Switch to Perpendicular Park
Press OK to Switch to Parallel Park

NOTE:
When searching for a parking space, use the
turn signal indicator to select which side of
the vehicle you want to perform the parking
maneuver. The ParkSense Active Park Assist system will automatically search for a parking
space on the passenger's side of the vehicle
if the turn signal is not activated.
The driver needs to make sure that the
selected parking space for the maneuver
remains free and clear of any obstructions
(e.g. pedestrians, bicycles, etc.).
The driver is responsible to ensure that the
selected parking space is suitable for the
maneuver and free/clear of anything that
may be overhanging or protruding into the
parking space (e.g., ladders, tailgates, etc.
from surrounding objects/vehicles).
When searching for a parking space, the
driver should drive as parallel or perpendic
-
ular (depending on the type of maneuver) to
other vehicles as possible.
The feature will only indicate the last
detected parking space (example: if passing
multiple available parking spaces, the
system will only indicate the last detected
parking space for the maneuver). A parking
space is considered invalid after the vehicle
is 32 ft (10 m) or more away from it.
4

21_DT_OM_EN_USC_t.book Page 197

198STARTING AND OPERATING
When an available parking space has been
found, and the vehicle is not in position, you will
be instructed to move forward to position the
vehicle for a perpendicular or parallel parking
sequence (depending on the type of maneuver
being performed).

Space Found — Keep Moving Forward

Once the vehicle is in position, you will be
instructed to stop the vehicle’s movement and
remove your hands from the steering wheel.
When the vehicle comes to a standstill (your
hands still removed from the steering wheel),
you will be instructed to place the gear selector
into the REVERSE position.
The system may then instruct the driver to wait
for steering to complete before then instructing
to check surroundings and move backward.
Move Backward Into Parallel Parking Space
Move Backward Into Perpendicular Parking Space

The system may instruct several more gear
shifts (DRIVE and REVERSE), with hands off of
the steering wheel, before instructing the driver
to check surroundings and complete the
parking maneuver. When the vehicle is in the parking position, the
maneuver is complete and the driver will be
instructed to check the vehicle's parking
position, then shift the vehicle into PARK. The
message "Active ParkSense Complete - Check
Parking Position" will be displayed momentarily.
NOTE:
It is the driver's responsibility to use the
brake and accelerator during the semi-auto
-
matic parking maneuver.
It is the driver's responsibility to use the
brake and stop the vehicle. The driver should
check their surroundings and be prepared to
stop the vehicle either when instructed to, or
when driver intervention is required.
When the system instructs the driver to
remove their hands from the steering wheel,
the driver should check their surroundings
and begin to back up slowly.
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.

21_DT_OM_EN_USC_t.book Page 198

STARTING AND OPERATING199
The system will cancel the maneuver if the
vehicle speed exceeds 5 mph (7 km/h)
during active steering guidance into the
parking space. The system will provide a
warning to the driver at 3 mph (5 km/h) that
tells them to slow down. The driver is then
responsible for completing the maneuver if
the system is canceled.
If the system is canceled during the
maneuver for any reason, the driver must
take control of the vehicle.
LANESENSE — IF EQUIPPED
LANESENSE OPERATION
The LaneSense system is operational at speeds
above 37 mph (60 km/h) and below 112 mph
(180 km/h). The LaneSense system uses a
forward looking camera to detect lane markings
and measure vehicle position within the lane
boundaries. When both lane markings are detected and the
driver drifts out of the lane (no turn signal
applied), the LaneSense system provides a
haptic warning in the form of torque applied to
the steering wheel, as well as a visual warning
in the instrument cluster display, to prompt the
driver to remain within the lane boundaries.
The driver may manually override the haptic
warning by applying force into the steering
wheel at any time.
When only a single lane marking is detected
and the driver drifts across the lane marking (no
turn signal applied), the LaneSense system
provides a visual warning through the
instrument cluster display to prompt the driver
to remain within the lane.
When only a single lane marking is detected, a
haptic or a torque warning will not be provided.
NOTE:
When operating conditions have been met, the
LaneSense system will monitor if the driver’s
hands are on the steering wheel and provide an
audible and visual warning to the driver if
removed. The system will cancel if the driver
does not return their hands to the wheel.
WARNING!
Drivers must be careful when performing
parallel or perpendicular parking maneuvers
even when using the ParkSense Active Park
Assist system. Always check carefully behind
and in front of your vehicle, look behind and
in front of you, and be sure to check for
pedestrians, animals, other vehicles,
obstructions, and blind spots before backing
up and moving forward. You are responsible
for safety and must continue to pay attention
to your surroundings. Failure to do so can
result in serious injury or death.
CAUTION!
The ParkSense Active Park Assist system is
only a parking aid and it is unable to recog
-
nize every obstacle, including small obsta -
cles. Parking curbs might be temporarily
detected or not detected at all. Obstacles
located above or below the sensors will not
be detected when they are in close prox -
imity.
The vehicle must be driven slowly when
using the ParkSense Active Park Assist
system in order to be able to stop in time
when an obstacle is detected. It is recom -
mended that the driver looks over his/her
shoulder when using the ParkSense Active
Park Assist system.4

21_DT_OM_EN_USC_t.book Page 199

200STARTING AND OPERATING
TURNING LANESENSE ON OR OFF
The LaneSense button is located on
the switch panel below the Uconnect
display.
NOTE:
If your vehicle is equipped with a 12-inch
Uconnect Display screen, the LaneSense button
is located above the display.
To turn the LaneSense system on, push the
LaneSense button (LED turns off). A
“LaneSense On” message is shown in the
instrument cluster display.
To turn the LaneSense system off, push the
LaneSense button again (LED turns on).
NOTE:
The LaneSense system will retain the last
system state on or off from the last ignition
cycle when the ignition is placed in the ON/RUN
position.
LANESENSE WARNING MESSAGE
The LaneSense system will indicate the current
lane drift condition through the instrument
cluster display.
When the LaneSense system is on, the lane
lines are gray when both of the lane boundaries
have not been detected and the LaneSense
telltale is solid white.

System ON (Gray Lines) With White Telltale
Left Lane Departure — Only Left Lane Detected

When the LaneSense system is on, the Lane-
Sense Telltale is solid white when only the
left lane marking has been detected and the
system is ready to provide visual warnings in
the instrument cluster display if an uninten -
tional lane departure occurs on the left side.
When the LaneSense system senses the lane
has been approached and is in a lane depar -
ture situation, the visual warning in the
instrument cluster display will show the left
lane line flashing yellow (on/off). The Lane -
Sense telltale changes from solid white to
flashing yellow.

Lane Approached (Flashing Yellow Lane Line) With Yel -
low Telltale

NOTE:
The LaneSense system operates with similar
behavior for a right lane departure when only
the right lane marking has been detected.

21_DT_OM_EN_USC_t.book Page 200

STARTING AND OPERATING201
Left Lane Departure — Both Lane Lines
Detected
When the LaneSense system is on and both
the lane markings have been detected, the
system is "armed" to provide visual warnings
in the instrument cluster display and a torque
warning in the steering wheel if an uninten -
tional lane departure occurs .The lane lines
turn from gray to white and the LaneSense
telltale is solid green.

Lanes Sensed (White Lines) With Green Telltale

When the LaneSense system senses a lane
drift situation, the left lane line turns solid
yellow. The LaneSense telltale changes
from solid green to solid yellow. At this time
torque is applied to the steering wheel in the
opposite direction of the lane boundary. For example: If approaching the left side of
the lane the steering wheel will turn to the
right.

Lane Sensed (Solid Yellow Lane Line) With Solid Yellow Telltale

When the LaneSense system senses the lane
has been approached and is in a lane depar -
ture situation, the left lane line flashes yellow
(on/off). The LaneSense telltale changes
from solid yellow to flashing yellow. At this
time torque is applied to the steering wheel in
the opposite direction of the lane boundary. For example: If approaching the left side of
the lane the steering wheel will turn to the
right.

Lane Approached (Flashing Yellow Lane Line) With Flashing Yellow Telltale

NOTE:
The LaneSense system operates with similar
behavior for a right lane departure.
4

21_DT_OM_EN_USC_t.book Page 201

STARTING AND OPERATING211
DIESEL EXHAUST FLUID
Your vehicle is equipped with a Selective
Catalytic Reduction (SCR) system to meet diesel
emissions standards required by the
Environmental Protection Agency.
The purpose of the SCR system is to reduce
levels of oxides of nitrogen (NO
x) emitted from
engines that are harmful to our health and the
environment to a near-zero level. A small
quantity of Diesel Exhaust Fluid (DEF) is
injected into the exhaust upstream of a catalyst
where, when vaporized, converts smog-forming
NO
x into harmless nitrogen (N2) and water
vapor (H
2O), two natural components of the air
we breathe.
DIESEL EXHAUST FLUID STORAGE
Diesel Exhaust Fluid (DEF) is considered a very
stable product with a long shelf life. If DEF is
kept in temperatures between 10° and 90°F
(-12° and 32°C), it will last a minimum of one
year.
DEF may freeze at temperatures at or below
12°F (-11°C). The system has been designed to
operate in this environment. NOTE:
When working with DEF, it is important to know
that:
Any containers or parts that come into
contact with DEF must be DEF compatible
(plastic or stainless steel). Copper, brass,
aluminum, iron or non-stainless steel should
be avoided as they are subject to corrosion
by DEF.
If DEF is spilled, it should be wiped up
completely.
ADDING DIESEL EXHAUST FLUID
The Diesel Exhaust Fluid (DEF) gauge (located
on the instrument cluster) will display the level
of DEF remaining in the tank Ú
page 109.
NOTE:
Driving conditions (altitude, vehicle speed,
load, etc.) will effect the amount of DEF that
is used in your vehicle.
Outside temperature can affect DEF
consumption. In cold conditions, 12°F
(-11°C) and below, the DEF gauge may take
longer to operate as intended. This is a
normal function of the system.
There is an electric heater inside the DEF
tank that automatically works when neces -
sary. And if the DEF supply does freeze, the
truck will operate normally until it thaws.
Diesel Exhaust Fluid (DEF) Fill Procedure
NOTE:
For the correct fluid type Ú page 475.

1. Remove cap from Diesel Exhaust Fluid (DEF) tank which is located next to the
diesel fuel filler.

DEF Filler Cap And Fuel Fill

1 — Diesel Exhaust Fluid (DEF) Fill Location
2 — Diesel Fuel Fill Location
4

21_DT_OM_EN_USC_t.book Page 211

STARTING AND OPERATING213
3. Stop filling the DEF tank immediately when
any of the following happen: DEF stops
flowing from the fill bottle into the DEF tank,
DEF splashes out the filler neck, or a DEF
pump nozzle automatically shuts off.
4. Reinstall cap onto DEF tank.
Filling The Def Tank In Cold Climates
Your vehicle is equipped with an automatic DEF
heating system. This allows the DEF injection
system to operate properly at temperatures below 12°F (-11°C). If your vehicle is not in
operation for an extended period of time with
temperatures below 12°F (-11°C), the DEF in
the tank may freeze. Do not overfill the DEF
tank. If the tank is overfilled and freezes, it
could be damaged.
Extra care should be taken when filling with
portable containers to avoid overfilling. Keep an
eye on the DEF gauge in your instrument
cluster. You may safely add a maximum of
2 gallons (7.6 Liters) when your DEF gauge is
reading at the half mark.
VEHICLE LOADING
GROSS VEHICLE WEIGHT RATING
(GVWR)
The GVWR is the total permissible weight of your
vehicle including driver, passengers, vehicle,
options and cargo. The label also specifies
maximum capacities of front and rear Gross
Axle Weight Rating (GAWR). Total load must be
limited so GVWR and front and rear GAWR are
not exceeded.
PAYLOAD
The payload of a vehicle is defined as the
allowable load weight a truck 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 does 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.
Never add anything other than DEF to the
tank – especially any form of hydrocarbon
such as diesel fuel, fuel system additives,
gasoline, or any other petroleum-based
product. Even a very small amount of these,
less than 100 parts per million or less than
1 oz. per 78 gallons (295 liters) will contam -
inate the entire DEF system and will require
replacement. If owners use a container,
funnel or nozzle when refilling the tank, it
should either be new or one that is has only
been used for adding DEF. Mopar provides
an attachable nozzle with its DEF for this
purpose.
CAUTION! (Continued)
4

21_DT_OM_EN_USC_t.book Page 213