2023 RAM CHASSIS CAB wheel torque

8
TIRES ..................................................................... 389 Tire Safety Information ................................ 389
Tires — General Information ......................... 397Tire Types ....................................................... 400
Spare Tires — If Equipped ............................ 401
Wheel And Wheel Trim Care ........................ 403
Snow Traction Devices ................................. 404Tire Rotation Recommendations ................. 405
DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES ...................................... 406
Treadwear ...................................................... 406Traction Grades ............................................. 407
Temperature Grades ..................................... 407
STORING THE VEHICLE ...................................... 407
BODYWORK .......................................................... 407 Protection From Atmospheric Agents .......... 407
Body And Underbody Maintenance.............. 408
Preserving The Bodywork ............................. 408
INTERIORS ........................................................... 409
Seats And Fabric Parts.................................. 409
Plastic And Coated Parts .............................. 409Leather Surfaces ........................................... 410Glass Surfaces .............................................. 410
TECHNICAL SPECIFICATIONS
VEHICLE IDENTIFICATION NUMBER (VIN) ....... 411
BRAKE SYSTEM .................................................. 411
Hydraulic Brake Assist —If Equipped ........... 411 WHEEL AND TIRE TORQUE SPECIFICATIONS .. 411
Torque Specifications ................................... 411
FUEL REQUIREMENTS— GASOLINE ENGINE ... 413
6.4L Engine ................................................... 413
Reformulated Gasoline ................................ 413Materials Added To Fuel ............................... 413
Gasoline/Oxygenate Blends ......................... 414

Do Not Use E-85 In Non-Flex Fuel Vehicles ....414

CNG And LP Fuel System Modifications ...... 414Methylcyclopentadienyl Manganese
Tricarbonyl (MMT) In Gasoline...................... 414Fuel System Cautions ................................... 415
FUEL REQUIREMENTS – DIESEL ENGINE ....... 415
Fuel Specifications ....................................... 416
Biodiesel Fuel Requirements ....................... 416
FLUID CAPACITIES ............................................. 418
ENGINE FLUIDS AND LUBRICANTS .................. 419
CHASSIS FLUIDS AND LUBRICANTS ................ 421
CUSTOMER ASSISTANCE
SUGGESTIONS FOR OBTAINING SERVICE FOR
YOUR VEHICLE .................................................... 422
Prepare For The Appointment ...................... 422Prepare A List ................................................ 422Be Reasonable With Requests..................... 422 IF YOU NEED ASSISTANCE ................................ 422
Roadside Assistance..................................... 422FCA US LLC Customer Center....................... 424
FCA Canada Inc. Customer Center .............. 424
Mexico............................................................ 424
Puerto Rico And US Virgin Islands ............... 424
Customer Assistance For The Hearing Or
Speech Impaired(TDD/TTY) .......................... 424
Service Contract ........................................... 424
WARRANTY INFORMATION ................................ 425
MOPAR® PARTS ................................................. 425
REPORTING SAFETY DEFECTS .......................... 425
In The 50 United States And
Washington, D.C............................................ 425
In Canada ...................................................... 426
PUBLICATION ORDER FORMS .......................... 426
GENERAL INFORMATION.................................... 427
CHANGE OF OWNERSHIP OR ADDRESS .......... 427

23_DPF_OM_EN_USC_t.book Page 8

GETTING TO KNOW YOUR INSTRUMENT PANEL109
Snowplow Mode Indicator Light —
If Equipped
This indicator light will illuminate when
Snowplow mode has been activated
Úpage 192.

Cold Ambient Derate Mode Indicator Light —
If Equipped

This indicator light will illuminate when a
derate (engine power reduction) is
activated for protection of the
turbocharger in cold ambient
temperatures.
Diesel Exhaust Brake Indicator Light —
If Equipped
This indicator light will illuminate when
the Diesel Exhaust Brake has been
activated, and is in full strength mode
Ú page 129.
4WD Lock Indicator Light
This light alerts the driver that the vehicle
is in the 4WD Lock mode. The front and
rear driveshafts are mechanically locked
together, forcing the front and rear
wheels to rotate at the same speed Ú page 140.
4WD Low Indicator Light — If Equipped
This light alerts the driver that the vehicle
is in the 4WD Low mode. The front and
rear driveshafts are mechanically locked
together forcing the front and rear
wheels to rotate at the same speed. Low range
provides a greater gear reduction ratio to provide
increased torque at the wheels Ú page 140.
4WD High Indicator Light — If Equipped
This light alerts the driver that the vehicle
is in the 4WD High mode. The front and
rear driveshafts are mechanically locked
together forcing the front and rear
wheels to rotate at the same speed.
NEUTRAL Indicator Light — If Equipped
This light alerts the driver that the 4WD
power transfer case is in the NEUTRAL
mode and the front and rear driveshafts
are disengaged from the powertrain.
Low Diesel Exhaust Fluid (DEF) Indicator
Light — If Equipped
The Low DEF Indicator will illuminate if
the vehicle is low on DEF Ú page 364.
Wait To Start Indicator Light — If Equipped
This indicator light will illuminate for
approximately two seconds when the
ignition is turned to the RUN position. Its
duration may be longer based on colder
operating conditions. Vehicle will not initiate start
until telltale is no longer displayed Ú page 117.
NOTE:The Wait To Start Indicator Light may not illuminate
if the intake manifold temperature is warm
enough.
Water In Fuel Indicator Light — If Equipped
The Water In Fuel Indicator Light will
illuminate when there is water detected
in the fuel filter. If this light remains on,
DO NOT start the vehicle before you drain
the water from the fuel filter to prevent engine
damage Ú page 360.
GREEN INDICATOR LIGHTS
Adaptive Cruise Control (ACC) Set With
Target Indicator Light — If Equipped
This will display when the ACC is set and
a the vehicle in front is detected
Úpage 150.
3

23_DPF_OM_EN_USC_t.book Page 109

STARTING AND OPERATING129
DIESEL EXHAUST BRAKE (ENGINE
BRAKING)
The purpose of the exhaust brake (engine braking)
feature is to supply negative (braking) torque from
the engine. Typically, the engine braking is used
for, but not limited to, vehicle towing applications
where vehicle braking can be achieved by the
internal engine power, thereby sparing the
mechanical brakes of the vehicle.
Benefits of the exhaust brake are:
Vehicle driving control.
Reduced brake fade.
Longer brake life.
Faster cab warm-up.
The exhaust brake feature will only function when
the driver toggles it on by pushing the exhaust
brake button until the Exhaust Brake Indicator is
illuminated. Normal (Full Strength) exhaust brake
mode is indicated by a yellow Exhaust Brake
Indicator.
Exhaust Brake Switch

Once the Exhaust Brake Indicator is illuminated
and the vehicle is moving faster than 5 mph
(8 km/h); the exhaust brake will automatically
operate when the driver removes pressure from
the accelerator pedal. Exhaust braking is most
effective when the engine RPM is higher. The
automatic transmission will downshift more
aggressively in TOW/HAUL mode when the exhaust
brake is enabled to increase brake performance.
WARNING!
Never use the PARK position as a substitute
for the parking brake. Always apply the
parking brake fully when parked to guard
against vehicle movement and possible injury
or damage.
Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Leaving unat -
tended children in a vehicle is dangerous for a
number of reasons. A child or others could be
seriously or fatally injured.
Do not leave the key fob in or near the vehicle,
or in a location accessible to children, and do
not leave a vehicle equipped with Keyless
Enter ‘n Go™ in the ACC or ON/RUN position.
A child could operate power windows, other
controls, or move the vehicle.
Be sure the parking brake is fully disengaged
before driving; failure to do so can lead to
brake failure and a collision.
Always fully apply the parking brake when
leaving your vehicle or it may roll and cause
damage or injury. Also, be certain to leave the
transmission in PARK. Failure to do so may
cause the vehicle to roll and cause damage or
injury.
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!
Do not use the exhaust brake feature when
driving in icy or slippery conditions as the
increased engine braking can cause the rear
wheels to slide and the vehicle to swing around
with the possible loss of vehicle control, which
may cause an accident possibly resulting in
personal injury or death.
4

23_DPF_OM_EN_USC_t.book Page 129

STARTING AND OPERATING139
The TOW/HAUL Indicator Light will illuminate in the
instrument cluster to indicate that TOW/HAUL
mode has been activated. Pushing the switch a
second time restores normal operation. Normal
operation is always the default at engine start-up.
If TOW/HAUL mode is desired, the switch must be
pushed each time the engine is started.
Torque Converter Clutch
A feature designed to improve fuel economy has
been included in the automatic transmission on
your vehicle. A clutch within the torque converter
engages automatically at calibrated speeds. This
may result in a slightly different feeling or response
during normal operation in the upper gears. When
the vehicle speed drops or during some
accelerations, the clutch automatically
disengages.
NOTE:
The torque converter clutch will not engage,
until the transmission fluid and engine coolant
are warm (usually after 1 to 3 miles (2 to 5 km)
of driving). Because engine speed is higher
when the torque converter clutch is not
engaged, it may seem as if the transmission is
not shifting properly when cold; this is normal.
Using the Electronic Range Select (ERS) shift
control, when the transmission is sufficiently
warm, will demonstrate that the transmission is
able to shift into and out of Overdrive.
If the vehicle has not been driven for several
days, the first few seconds of operation after
shifting the transmission into gear may seem
sluggish. This is due to the fluid partially
draining from the torque converter into the
transmission. This condition is normal and will
not cause damage to the transmission. The
torque converter will refill within five seconds
after starting the engine.
AUXILIARY SWITCHES — IF EQUIPPED
There can be up to six auxiliary switches located in
the lower switch bank of the instrument panel
which can be used to power various electronic
devices and Power Take Off (PTO). If equipped, it
will take the place of the sixth auxiliary switch.
Connections to the switches are found under the
hood in the connectors attached to the auxiliary
Power Distribution Center.
You have the ability to configure the functionality of
the auxiliary switches via the instrument cluster
display. All switches can now be configured for
setting the switch type operation to latching or
momentary, power source of either battery or
ignition, and ability to hold last state across key
cycles.
NOTE:Holding last state conditions are met when switch
type is set to latching and power source is set to
ignition.
For further information on using the auxiliary
switches, please refer to the Ram Body Builder’s
Guide by accessing
https://
www.ramtrucks.com/ram-commercial/
body-builders-guide.html
and choosing the
appropriate links.
WARNING!
Do not use the TOW/HAUL feature when driving
in icy or slippery conditions. The increased
engine braking can cause the rear wheels to
slide, and the vehicle to swing around with the
possible loss of vehicle control, which may
cause an accident possibly resulting in personal
injury or death.4

23_DPF_OM_EN_USC_t.book Page 139

140STARTING AND OPERATING
FOUR-WHEEL DRIVE OPERATION —
IF EQUIPPED
Four-wheel drive trucks are equipped with either a
manually shifted transfer case or an electronically
shifted transfer case.
ELECTRONICALLY SHIFTED TRANSFER
C
ASE (8-SPEED TRANSMISSION) — IF
E
QUIPPED
This is an electronically shifted transfer case and is
operated by the 4WD Control Switch (Transfer
Case Switch), which is located on the instrument
panel.

Four-Position Transfer Case
This electronically shifted transfer case provides
four positions:
Two-Wheel Drive High Range (2WD)
Four-Wheel Drive High Range (4WD HIGH)
Four-Wheel Drive Low Range (4WD LOW)
N (Neutral)
For additional information on the appropriate use
of each transfer case position, see the information
below:
2WD
Two-Wheel Drive High Range — This range is for
normal street and highway driving on dry, hard
surfaced roads.
4WD HIGH

Four-Wheel Drive High Range — This range provides
torque to the front driveshaft (engages four-wheel
drive) which allows front and rear wheels to spin at
the same speed. This provides additional traction for
loose, slippery road surfaces only.

4WD LOW
Four-Wheel Drive Low Range — This range provides
low speed four-wheel drive. It maximizes torque
(increased torque over 4WD High) to the front
wheels, allowing front and rear wheels to rotate at
the same speed. This range provides additional
traction and maximum pulling power for loose,
slippery road surfaces only. Do not exceed 25 mph
(40 km/h) in this range. N (Neutral)
N (Neutral) — This range disengages both the front
and rear driveshafts from the powertrain. To be
used for flat towing behind another vehicle
Ú
page 194.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 drive shaft 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.
The transmission may not engage PARK if the
vehicle is moving. Always bring the vehicle to a
complete stop before shifting to PARK, and
verify that the transmission gear position indi -
cator solidly indicates PARK (P) without
blinking. Ensure that the vehicle is completely
stopped, and the PARK position is properly
indicated, before exiting the vehicle.

23_DPF_OM_EN_USC_t.book Page 140

STARTING AND OPERATING141
This electronically shifted transfer case is designed
to be driven in the two-wheel drive position (2WD)
for normal street and highway conditions on dry
hard surfaced roads. Driving the vehicle in
two-wheel drive will have greater fuel economy
benefits as the front axle is not engaged in
two-wheel drive.
When additional traction is required, the transfer
case 4WD HIGH and 4WD LOW positions can be
used to maximize torque to the front driveshaft,
forcing the front and rear wheels to rotate at the
same speed. This is accomplished by pushing the
desired position on the four-wheel drive control
switch.
For specific shifting instructions Ú page 144.
The 4WD HIGH and 4WD LOW positions are
designed for loose, slippery road surfaces only.
Driving in the 4WD HIGH and 4WD LOW positions
on dry, hard surfaced roads may cause increased
tire wear and damage to the driveline components.
NOTE:The transfer case N (Neutral) button is located in
the center of the four-wheel drive Control Switch
and is pushed by using a ballpoint pen or similar
object. The transfer case N (Neutral) position is to
be used for recreational towing only Ú page 194.Transfer Case Position Indicator Lights
The Transfer Case Position Indicator Lights (4WD
and 4WD LOW) are located in the instrument
cluster and indicate the current and desired
transfer case selection. When you select a
different transfer case position, the indicator lights
will do the following:
If All Of The Following Shift Conditions Are Met:


1. The current position indicator light will turn off.

2. The selected position indicator light will flash until the transfer case completes the shift.
3. When the shift is complete, the indicator light for the selected position will stop flashing and
remain on.
If One Or More Of The Following Shift Conditions
Are Not Met:

1. The indicator light for the current position will remain on.

2. The newly selected position indicator light will continue to flash.
3. The transfer case will not shift.
NOTE:Before retrying a selection, make certain that all
the necessary requirements for selecting a new
transfer case position have been met. To retry the selection, push the current position, wait five
seconds, and retry selection Ú
page 144.
The SERV 4WD Warning Light monitors the
electronically shifted four-wheel drive system. If
this light remains on after engine start-up or
illuminates during driving, it means that the
four-wheel drive system is not functioning properly
and that service is required.
NOTE:Do not attempt to make a shift while only the front
or rear wheels are spinning. This could cause
damage to driveline components.
When operating your vehicle in 4WD LOW, the
engine speed is approximately three times that of
the two-wheel drive or 4WD HIGH positions at a
given road speed. Take care not to overspeed the
engine and do not exceed 25 mph (40 km/h).
Proper operation of four-wheel drive vehicles
depends on tires of equal size, type and
circumference on each wheel. Any difference in
tire size can cause damage to the drivetrain.
WARNING!
Always engage the parking brake when powering
down the vehicle if the SERV 4WD Warning Light
is illuminated. Not engaging the parking brake
may allow the vehicle to roll which may cause
personal injury or death.4

23_DPF_OM_EN_USC_t.book Page 141

STARTING AND OPERATING143
ELECTRONICALLY SHIFTED TRANSFER
C
ASE (6-SPEED TRANSMISSION) —
I
F EQUIPPED
The electronically shifted transfer case is operated
by the four-wheel drive Control Switch (Transfer
Case Switch), which is located on the instrument
panel.

Four-Position/Part-Time Transfer Case

This electronically shifted transfer case provides
four positions:
Two-Wheel Drive High Range (2WD)
Four-Wheel Drive High Range (4WD HIGH)
Four-Wheel Drive Low Range (4WD LOW)
N (Neutral) For additional information on the appropriate use
of each transfer case position, see the information
below:
2WD
Two-Wheel Drive High Range — This range is for
normal street and highway driving on dry, hard
surfaced roads.
4WD HIGH
Four-Wheel Drive High Range — This range
maximizes torque to the front driveshaft, forcing
the front and rear wheels to rotate at the same
speed. This range provides additional traction for
loose, slippery road surfaces only.
4WD LOW
Four-Wheel Drive Low Range — This range provides
low speed four-wheel drive. It maximizes torque to
the front wheels, forcing the front and rear wheels
to rotate at the same speed. This range provides
additional traction and maximum pulling power for
loose, slippery road surfaces only. Do not exceed
25 mph (40 km/h).
N (Neutral)
N (Neutral) — This range disengages both the front
and rear driveshafts from the powertrain. To be
used for flat towing behind another vehicle
Ú
page 194. This electronically shifted transfer case is designed
to be driven in the two-wheel drive position (2WD)
for normal street and highway conditions on dry,
hard surfaced roads.
When additional traction is required, the transfer
case 4WD HIGH and 4WD LOW positions can be
used to maximize torque to the front driveshaft,
forcing the front and rear wheels to rotate at the
same speed. This is accomplished by rotating the
four-wheel drive Control Switch to the desired
position.
For specific shifting instructions Ú
page 144.
The 4WD HIGH and 4WD LOW positions are
designed for loose, slippery road surfaces only.
Driving in the 4WD HIGH and 4WD LOW positions
on dry hard surfaced roads may cause increased
tire wear and damage to the driveline components.
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 drive shafts 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.
4

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164STARTING AND OPERATING
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 torque to the steering wheel at
any time.
When only a single lane marking is detected and
the driver drifts across that 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 (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.
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 changed to 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
LaneSense 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 unintentional
lane departure occurs on the left side.
When the LaneSense system senses the lane
has been approached and is in a lane departure
situation, the visual warning in the instrument
cluster display will show the left lane line
flashing yellow (on/off). The LaneSense telltale
changes from solid white to flashing yellow.

23_DPF_OM_EN_USC_t.book Page 164