technical specifications RAM CHASSIS CAB 2023 Owners Manual

TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
10
11
1 INTRODUCTION .............................................................................................................................. 9
2 GETTING TO KNOW YOUR VEHICLE ..................................................................................15
3 GETTING TO KNOW YOUR INSTRUMENT PANEL ........................................................78
4 STARTING AND OPERATING ................................................................................................ 113 5 MULTIMEDIA ............................................................................................................................... 199
6 SAFETY ........................................................................................................................................ 270 7 IN CASE OF EMERGENCY .................................................................................................... 325
8 SERVICING AND MAINTENANCE ...................................................................................... 342
9 TECHNICAL SPECIFICATIONS .............................................................................................. 411
10 CUSTOMER ASSISTANCE ..................................................................................................... 422 11 INDEX ............................................................................................................................................. 428

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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

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10
SYMBOLS KEY
If you do not read the entire Owner’s Manual, you may miss important
information. Observe all Cautions and Warnings.
VAN CONVERSIONS/CAMPERS
The New Vehicle Limited Warranty does not apply to body modifications or
special equipment installed by van conversion/camper manufacturers/body
builders. US residents refer to the Warranty Information, Section 2.1.C.
Canadian residents refer to the “What Is Not Covered” section of the Warranty
Information. Such equipment includes video monitors, DVD/Blu-Ray™,
heaters, stoves, refrigerators, etc. For warranty coverage and service on these
items, contact the applicable manufacturer.
Operating instructions for the special equipment installed by the conversion/
camper manufacturer should also be supplied with your vehicle. For any
additional instructions, please contact your conversion/camper manufacturer.
To obtain dimensional and technical specifications for your vehicle, refer to the
Body Builder’s Guide at
https://www.ramtrucks.com/ram-commercial/
body-builders-guide.html.
VEHICLE MODIFICATIONS/ALTERATIONS
SYMBOL GLOSSARY
Some car components have colored labels with symbols indicating
precautions to be observed when using this component. It is important to
follow all warnings when operating your vehicle. See below for the definition of
each symbol Ú page 102.
WARNING!
These statements apply to operating procedures
that could result in a collision, bodily injury and/or
death.
CAUTION! These statements apply to procedures that could
result in damage to your vehicle.
NOTE: A suggestion which will improve installation,
operation, and reliability. If not followed, may result
in damage.
TIP: General ideas/solutions/suggestions on easier
use of the product or functionality.
PAGE REFERENCE
ARROW
Follow this reference for additional information on
a particular feature.
FOOTNOTE Supplementary and relevant information
pertaining to the topic.
WARNING!
Any modifications or alterations to this vehicle could seriously affect its
roadworthiness and safety and may lead to a collision resulting in serious
injury or death.

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411
TECHNICAL SPECIFICATIONS
VEHICLE IDENTIFICATION NUMBER (VIN)
The VIN is found on the left front corner of the
instrument panel, visible through the windshield.
Vehicle Identification Number

NOTE:It is illegal to remove or alter the VIN.
BRAKE SYSTEM
If power assist is lost for any reason (for example,
repeated brake applications with the engine off),
the brakes will still function. However, you will
experience a substantial increase in braking effort
to stop the vehicle. If either the front or rear hydraulic system loses
normal braking capability, the remaining system
will still function with some loss of overall braking
effectiveness. This will be evident by increased
pedal travel during application, greater pedal force
required to slow or stop, and activation of the
Brake Warning Light and/or the Anti-Lock Brake
System (ABS) Warning Light during brake use.
HYDRAULIC BRAKE ASSIST —
I
F EQUIPPED
The brake system power assist is provided by a
hydro-boost unit which shares fluid with the power
steering system. You may experience some
clicking or hissing noises from the hydro-boost
system during hard braking conditions.
NOTE:Under cold temperatures, pedal effort will be
higher than normal until the power steering fluid
reaches operating temperature.
WHEEL AND TIRE TORQUE SPECIFICATIONS
Proper lug nut/bolt torque is very important to
ensure that the wheel is properly mounted to the
vehicle. Any time a wheel has been removed and
reinstalled on the vehicle, the lug nuts/bolts
should be torqued using a properly calibrated
torque wrench using a six-sided (hex) deep wall
socket.
TORQUE SPECIFICATIONS
**Use only authorized dealer recommended lug
nuts/bolts and clean or remove any dirt or oil
before tightening.
Lug Nut/
Bolt
Torque Lug Nut/
Bolt Type**Lug
Nut/Bolt
SizeLug Nut/
Bolt
Socket
Size
130 ft-lb
(176 N·m) Cone
M14 x
1.5022 mm
129 ft-lb
(175 N·m) Flanged
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412TECHNICAL SPECIFICATIONS
Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion or
loose particles.
NOTE:Dual wheels are flat mounted, center piloted. The
lug nuts are a two-piece assembly. When the tires
are being rotated or replaced, clean these lug nuts
at the interface between the lug nut/bolt and the
washer. Do not oil wheel studs.

Two-Piece Lug Nut

Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion or
loose particles.
Wheel Mounting Surface

Retighten the wheel nuts, in the same pattern, to
the torques listed in the Torque Specifications
table. Go through the sequence a second time to
verify that specific torque has been achieved.
Retighten to specifications after 25 miles (40 km)
and check the lug nut/bolt torque to be sure that
all the lug nuts/bolts are properly tightened.
8/10 Lug Nuts/Bolts Torque Patterns

It is recommended that wheel stud nuts be kept
torqued to specifications at all times. Torque wheel
stud nuts to specifications at each lubrication
interval.
1 — 10 Bolt Pattern
2 — 8 Bolt Pattern

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TECHNICAL SPECIFICATIONS413
All wheel nuts should be tightened occasionally to
eliminate the possibility of wheel studs being
sheared or the bolt holes in the wheels becoming
elongated. This is especially important during the
first few hundred miles/kilometers of operation to
allow the wheel nuts to become properly set. All
wheel nuts should first be firmly seated against the
wheel. The wheel nuts should then be tightened to
recommended torque. Tighten the wheel nuts to
final torque in increments. Progress around the
bolt circle, tightening the wheel nut opposite to the
wheel nut just previously tightened until final
torque is achieved.
FUEL REQUIREMENTS— GASOLINE ENGINE
While operating on gasoline with the required
octane number, hearing a light knocking sound
from the engine is not a cause for concern.
However, if the engine is heard making a heavy
knocking sound, see a dealer immediately. Use of
gasoline with a lower than recommended octane
number can cause engine failure and may void or not be covered by the New Vehicle Limited
Warranty.
Poor quality gasoline can cause problems such as
hard starting, stalling, and hesitations. If you
experience these symptoms, try another brand of
gasoline before considering service for the vehicle.
6.4L ENGINE
Do not use E-85 flex fuel or ethanol blends greater
than 15% in this engine.
This engine is designed to meet all
emissions regulations and provide
satisfactory fuel economy and
performance when using high quality
unleaded gasoline having a posted octane number
of 87 as specified by the (R+M)/2 method.
REFORMULATED GASOLINE
Many areas of the country require the use of
cleaner-burning gasoline referred to as
“reformulated gasoline”. Reformulated gasoline
contains oxygenates and are specifically blended
to reduce vehicle emissions and improve air
quality.
The use of reformulated gasoline is recommended.
Properly blended reformulated gasoline will
provide improved performance and durability of
engine and fuel system components.
MATERIALS ADDED TO FUEL
Besides using unleaded gasoline with the proper
octane rating, gasolines that contain detergents,
corrosion and stability additives are
recommended. Using gasolines that have these
additives will help improve fuel economy, reduce
emissions, and maintain vehicle performance.
Designated TOP TIER Detergent Gasoline
contains a higher level of detergents to
further aide in minimizing engine and
fuel system deposits. When available,
the usage of TOP TIER Detergent Gasoline is
recommended. Visit
www.toptiergas.com for a list
of TOP TIER Detergent Gasoline retailers.
Indiscriminate use of fuel system cleaning agents
should be avoided. Many of these materials
intended for gum and varnish removal may contain
active solvents or similar ingredients. These can
harm fuel system gasket and diaphragm materials.WARNING!
To avoid the risk of forcing the vehicle off the
jack, do not tighten the lug nuts/bolts fully until
the vehicle has been lowered. Failure to follow
this warning may result in personal injury.
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414TECHNICAL SPECIFICATIONS
GASOLINE/OXYGENATE BLENDS
Some fuel suppliers blend unleaded gasoline with
oxygenates such as ethanol.
Problems that result from using gasoline
containing more than 15% ethanol (E-15) or
gasoline containing methanol are not the
responsibility of the manufacturer and may void or
not be covered under New Vehicle Limited
Warranty.
DO NOT USE E-85 IN NON-FLEX FUEL
V
EHICLES
Non-Flex Fuel Vehicles (FFV) are compatible with
gasoline containing up to 15% ethanol (E-15). Use
of gasoline with higher ethanol content may void
the New Vehicle Limited Warranty.
If a Non-FFV vehicle is inadvertently fueled with
E-85 fuel, the engine will have some or all of these
symptoms:
Operate in a lean mode.
OBD II Malfunction Indicator Light on.
Poor engine performance.
Poor cold start and cold drivability.
Increased risk for fuel system component corro -
sion.
CNG AND LP FUEL SYSTEM
M
ODIFICATIONS
Modifications that allow the engine to run on
Compressed Natural Gas (CNG) or Liquid Propane
(LP) may result in damage to the engine,
emissions, and fuel system components. Problems
that result from running CNG or LP are not the
responsibility of the manufacturer and may void or
not be covered under the New Vehicle Limited
Warranty.
METHYLCYCLOPENTADIENYL
M
ANGANESE TRICARBONYL (MMT) IN
G
ASOLINE
MMT is a manganese-containing metallic additive
that is blended into some gasolines to increase
octane. Gasoline blended with MMT provides no
performance advantage beyond gasoline of the
same octane number without MMT. Gasoline
blended with MMT reduces spark plug life and
reduces emissions system performance in some
vehicles. The manufacturer recommends that
gasoline without MMT be used in your vehicle. The
MMT content of gasoline may not be indicated on
the gasoline pump; therefore, you should ask your
gasoline retailer whether the gasoline contains
MMT. MMT is prohibited in Federal and California
reformulated gasoline.
CAUTION!
DO NOT use E-85, gasoline containing methanol,
or gasoline containing more than 15% ethanol
(E-15). Use of these blends may result in starting
and drivability problems, damage critical fuel
system components, cause emissions to exceed
the applicable standard, and/or cause the
Malfunction Indicator Light to illuminate. Please
observe pump labels as they should clearly
communicate if a fuel contains greater than
15% ethanol (E-15).

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TECHNICAL SPECIFICATIONS415
FUEL SYSTEM CAUTIONSNOTE:Intentional tampering with the emissions control
system can result in civil penalties being assessed
against you.
FUEL REQUIREMENTS – DIESEL ENGINE
Use good quality diesel fuel from a reputable
supplier in your vehicle. Federal law requires that
you must fuel this vehicle with Ultra Low Sulfur
Highway Diesel fuel (15 ppm Sulfur maximum) and
prohibits the use of Low Sulfur Highway Diesel fuel
(500 ppm Sulfur maximum) to avoid damage to the
emissions control system.
For most year-round service, Number 2 diesel fuel
meeting ASTM (formerly known as the American
Society for Testing and Materials) specification
D-975 Grade S15 will provide good performance. If
the vehicle is exposed to extreme cold (below 20°F
or -7°C), or is required to operate at
colder-than-normal conditions for prolonged
periods, use climatized Number 2 diesel fuel or
dilute the Number 2 diesel fuel with 50% Number
1 diesel fuel. This will provide better protection
from fuel gelling or wax-plugging of the fuel filters. Diesel fuel is seldom completely free of water. To
prevent fuel system trouble, drain the
accumulated water from the fuel/water separator
using the fuel/water separator drain provided on
both fuel filters. If you buy good quality fuel and
follow the cold weather advice above, fuel
conditioners should not be required in your vehicle.
If available in your area, a high cetane “premium”
diesel fuel may offer improved cold-starting and
warm-up performance.
CAUTION!
Follow these guidelines to maintain your
vehicle’s performance:
The use of leaded gasoline is prohibited by
Federal law. Using leaded gasoline can impair
engine performance and damage the emis
-
sions control system.
An out-of-tune engine or certain fuel or ignition
malfunctions can cause the catalytic
converter to overheat. If you notice a pungent
burning odor or some light smoke, your engine
may be out of tune or malfunctioning and may
require immediate service. Contact an autho -
rized dealer for service assistance.
The use of fuel additives, which are now being
sold as octane enhancers, is not recom -
mended. Most of these products contain high
concentrations of methanol. Fuel system
damage or vehicle performance problems
resulting from the use of such fuels or addi -
tives is not the responsibility of the manufac-
turer and may void or not be covered under
the New Vehicle Limited Warranty.
WARNING!
Do not use alcohol or gasoline as a fuel blending
agent. They can be unstable under certain
conditions and hazardous or explosive when
mixed with diesel fuel.
CAUTION!
If the Water in Fuel Indicator Light remains on,
DO NOT START engine before you drain the water
from the fuel filter(s) to avoid engine damage
Ú page 360.
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416TECHNICAL SPECIFICATIONS
FUEL SPECIFICATIONS
The Cummins® Turbo Diesel engine has been
developed to take advantage of the high energy
content and generally lower cost Number 2 Ultra
Low Sulfur diesel fuel or Number 2 Ultra Low Sulfur
climatized diesel fuels. Experience has shown that
it also operates on Number 1 Ultra Low Sulfur
diesel fuels or other fuels within specification.
NOTE:
If you accidentally fill the fuel tank with gasoline
on your diesel vehicle, Do not start the vehicle.
If you restart your vehicle you risk damaging the
engine and fuel system. Please call an autho-
rized dealer for service.
A maximum blend of 20% biodiesel meeting
ASTM specification D-7467 may be used with
your Cummins® diesel engine. (Models config -
ured with B20 Capability.)
In addition, commercially available fuel addi -
tives are not necessary for the proper operation
of your Cummins® diesel engine. However, if
seasonably adjusted fuel is not available and
you are operating below 20°F (-6°C), Mopar®
Premium Diesel Fuel Treatment (or equivalent)
may be beneficial to avoid fuel gelling.
Number 1 Ultra Low Sulfur diesel fuel should
only be used where extended arctic conditions
(0°F or -18°C) exist.
BIODIESEL FUEL REQUIREMENTS
Chassis Cab Models Ordered With B20
Option
Your vehicle has been validated and approved for
the use of biodiesel in blends up to 20% (B20)
provided that you comply with the requirements
outlined below. It is important that you understand
and comply with these requirements. Failure to
comply with Oil Change requirements for vehicles
operating on biodiesel blends up to B20 will result
in premature engine wear. Such wear is not
covered by the New Vehicle Limited Warranty.
Biodiesel is a fuel produced from renewable
resources typically derived from animal fat,
rapeseed oil (Rapeseed Methyl Ester (RME) base),
or soybean oil (Soy Methyl Ester (SME or SOME)
base). Biodiesel fuel has inherent limitations which
require that you understand and adhere to the
following requirements if you use blends of
biodiesel greater then 5% but not greater than
20% (B6-B20). There are no unique restrictions for
the use of B5. Use of blends greater than 20% is
not approved. Use of blends greater than 20% can
result in engine damage. Such damage is not
covered by the New Vehicle Limited Warranty. Fuel Quality — Must Comply With ASTM Standards
The quality of biodiesel fuel may vary widely. Only
fuel produced by a BQ9000 supplier to the
following specifications may be blended to meet
biodiesel blend (B6–B20) fuel meeting ASTM
specification D-7467:
Petrodiesel fuel meeting ASTM specification
D-975 and biodiesel fuel (B100) meeting ASTM
specification D-6751.
Fuel Oxidation Stability — Must Use Fuel
Within Six Months Of Manufacture
Biodiesel fuel has poor oxidation stability which
can result in long term storage problems. Fuel
produced to approved ASTM standards, if stored
properly, provides for protection against fuel
oxidation for up to six months.

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TECHNICAL SPECIFICATIONS417
Fuel Water Separation — Must Use
Mopar®/Cummins® Approved Fuel Filter
Elements
You must use Mopar®/Cummins® approved fuel
filter elements in both your engine mounted filter
and frame mounted filter.
Biodiesel fuel has a natural affinity to water and
water accelerates microbial growth. Your Mopar®/
Cummins® filtration system is designed to provide
adequate fuel water separation capabilities.
Biodiesel Fuel Properties — Low Ambient
Temperatures
Biodiesel fuel may gel or solidify at low ambient
temperatures, which may pose problems for both
storage and operation. Precautions can be
necessary at low ambient temperatures, such as
storing the fuel in a heated building or a heated
storage tank, or using cold temperature additives.
Fuel In Oil Dilution — Must Adhere To
Required Oil Change Interval
Fuel dilution of lubricating oil has been observed
with the use of biodiesel fuel. Fuel in oil must not
exceed 5%. To ensure this limit is met your oil
change interval must be maintained to the
following schedule:
Ram 3500/4500/5500 Chassis Cab —
12,500 Miles (20,000 km)*
(*unless otherwise notified with a oil service
message)
CAUTION!
Under no circumstances should oil change
intervals exceed 12,500 miles (20,000 km) if
operation occurs with greater than 5%
biodiesel blends. Oil change intervals should
not exceed six months in either case. Failure
to comply with these Oil Change requirements
for vehicles operating on biodiesel blends up
to B20 may result in premature engine wear.
Such wear is not covered by the New Vehicle
Limited Warranty.
B20 Biodiesel capable: The engine may suffer
severe damage if operated with concentra -
tions of Biodiesel higher than 20%.
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