2023 RAM CHASSIS CAB steering

400SERVICING AND MAINTENANCE
NOTE:Wheel valve stem must be replaced as well when
installing new tires due to wear and tear in existing
tires.
Keep dismounted tires in a cool, dry place with as
little exposure to light as possible. Protect tires
from contact with oil, grease, and gasoline.
Replacement Tires
The tires on your new vehicle provide a balance of
many characteristics. They should be inspected
regularly for wear and correct cold tire inflation
pressures. The manufacturer strongly
recommends that you use tires equivalent to the
originals in size, quality and performance when
replacement is needed Úpage 399. Refer to the
Tire And Loading Information Placard or the
Vehicle Certification Label for the size designation
of your tire. The Load Index and Speed Symbol for
your tire will be found on the original equipment
tire sidewall.
For more information relating to the Load Index
and Speed Symbol of a tire Ú page 389.
It is recommended to replace the two front tires or
two rear tires as a pair. Replacing just one tire can
seriously affect your vehicle’s handling. If you ever
replace a wheel, make sure that the wheel’s
specifications match those of the original wheels. It is recommended you contact an authorized tire
dealer or original equipment dealer with any
questions you may have on tire specifications or
capability. Failure to use equivalent replacement
tires may adversely affect the safety, handling, and
ride of your vehicle.
TIRE TYPES
All Season Tires — If Equipped
All Season tires provide traction for all seasons
(Spring, Summer, Autumn, and Winter). Traction
levels may vary between different all season tires.
All season tires can be identified by the M+S, M&S,
M/S or MS designation on the tire sidewall. Use all
season tires only in sets of four; failure to do so
may adversely affect the safety and handling of
your vehicle.
Summer Or Three Season Tires —
If Equipped
Summer tires provide traction in both wet and dry
conditions, and are not intended to be driven in
snow or on ice. If your vehicle is equipped with
Summer tires, be aware these tires are not
designed for Winter or cold driving conditions.
Install Winter tires on your vehicle when ambient
temperatures are less than 40°F (5°C) or if roads
are covered with ice or snow. For more
information, contact an authorized dealer.
WARNING!
Do not use a tire, wheel size, load rating, or
speed rating other than that specified for your
vehicle. Some combinations of unapproved
tires and wheels may change suspension
dimensions and performance characteristics,
resulting in changes to steering, handling, and
braking of your vehicle. This can cause unpre
-
dictable handling and stress to steering and
suspension components. You could lose
control and have a collision resulting in
serious injury or death. Use only the tire and
wheel sizes with load ratings approved for
your vehicle.
Never use a tire with a smaller load index or
capacity, other than what was originally
equipped on your vehicle. Using a tire with a
smaller load index could result in tire over -
loading and failure. You could lose control and
have a collision.
Failure to equip your vehicle with tires having
adequate speed capability can result in
sudden tire failure and loss of vehicle control.
CAUTION!
Replacing original tires with tires of a different
size may result in false speedometer and
odometer readings.

23_DPF_OM_EN_USC_t.book Page 400

SERVICING AND MAINTENANCE405
(Continued)
TIRE ROTATION RECOMMENDATIONS
Tires on the front and rear axles of vehicles
operate at different loads and perform different
steering, driving, and braking functions. For these
reasons, they wear at unequal rates.
These effects can be reduced by timely rotation of
tires. The benefits of rotation are especially
worthwhile with aggressive tread designs such as
those on On/Off Road type tires. Rotation will
increase tread life, help to maintain mud, snow,
and wet traction levels, and contribute to a
smooth, quiet ride. For the proper maintenance intervals
Úpage 344.
More frequent rotation is permissible if desired.
The reasons for any rapid or unusual wear should
be corrected prior to rotation being performed.

Tire Rotation (Rearward Cross)
NOTE:On Canadian vehicles only, if your vehicle is
equipped with All-Season type tires on the front
and On/Off Road type tires mounted on the rear,
do not use a front to back rotation pattern. Instead,
rotate your tires side to side at the recommended
intervals.
WARNING!
Using tires of different size and type (M+S,
Snow) between front and rear axles can cause
unpredictable handling. You could lose control
and have a collision.
CAUTION!
To avoid damage to your vehicle or tires, observe
the following precautions:
Because of restricted traction device clear -
ance between tires and other suspension
components, it is important that only traction
devices in good condition are used. Broken
devices can cause serious damage. Stop the
vehicle immediately if noise occurs that could
indicate device breakage. Remove the
damaged parts of the device before further
use.
Install device as tightly as possible and then
retighten after driving about 0.5 mile
(0.8 km). Autosock devices do not require
retightening.
Do not exceed 30 mph (48 km/h).
Drive cautiously and avoid severe turns and
large bumps, especially with a loaded vehicle.
Do not drive for a prolonged period on dry
pavement.
Observe the traction device manufacturer’s
instructions on the method of installation,
operating speed, and conditions for use.
Always use the suggested operating speed of
the device manufacturer’s if it is less than
30 mph (48 km/h).
Do not use traction devices on a compact
spare tire.
CAUTION!
8

23_DPF_OM_EN_USC_t.book Page 405

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
9

23_DPF_OM_EN_USC_t.book Page 411

TECHNICAL SPECIFICATIONS421
CHASSIS FLUIDS AND LUBRICANTS
6.4L GASOLINE ENGINE
6.7L DIESEL ENGINE
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission – 8-SpeedUse only Mopar® ZF 8 & 9 Speed ATF Automatic Transmission Fluid, or equivalent. Failure to use the
correct fluid may affect the function or performance of your transmission.
Automatic Transmission – 6-Speed Use only Mopar® ASRC Automatic Transmission Fluid or equivalent. Failure to use the proper fluid may
affect the function or performance of your transmission.
Transfer Case We recommend using Mopar® Transfer Case Lubricant for Borg Warner 44-44 and 44-45.
Front and Rear Axle Fluid We recommend using SAE 75W-85 HD Ram GL-5 Synthetic Axle Lubricant. Limited slip additive is required
for limited slip axles. If the axle fluid is not pre-mixed with limited slip additive we recommend using
Mopar® MS-10111 Limited Slip Additive.
Brake Master Cylinder We recommend using Mopar® DOT 3 and SAE J1703.
Power Steering Reservoir We recommend using Mopar® Power Steering Fluid +4, Mopar® ATF+4 Automatic Transmission Fluid.
Component Fluid, Lubricant, or Genuine Part
Automatic TransmissionOnly use Mopar® ASRC Automatic Transmission Fluid or equivalent. Failure to use the proper fluid may
affect the function or performance of your transmission.
Transfer Case We recommend using Mopar® BW44–44 Transfer Case Fluid.
Front and Rear Axle Fluid We recommend using SAE 75W-85 HD Ram GL-5 Synthetic Axle Lubricant. Limited slip additive is required
for limited slip axles. If the axle fluid is not pre-mixed with limited slip additive we recommend using
Mopar® MS-10111 Limited Slip Additive.
Brake Master Cylinder We recommend using Mopar® DOT 3 and SAE J1703.
9

23_DPF_OM_EN_USC_t.book Page 421

429
B
Back Up Camera
............................................ 166Back-Up......................................................... 166Battery................................................. 104, 352Blanket...................................................... 123Charging System Light............................... 104Keyless Key Fob Replacement.................... 16Battery Saver Feature...................................... 55Belts, Seat..................................................... 322Blind Spot Assist Cameras............................. 277Bluetooth Connecting To A Particular Mobile PhoneOr Audio Device After Pairing
................238Body Builders Guide........................................ 10Body Mechanism Lubrication........................ 364B-Pillar Location............................................. 394Brake Assist System...................................... 271Brake Control System.................................... 271Brake Fluid.......................................... 371, 421Brake System...................................... 371, 411Fluid Check............................................... 371Master Cylinder......................................... 371Parking...................................................... 128Warning Light............................................ 103Brake/Transmission Interlock....................... 131Bulb Replacement......................................... 384Bulbs, Light.......................................... 324, 384
C
Cab Top Clearance Lights............................. 388Camera......................................................... 166Camera, AUX........................................ 173, 176Camera, Rear....................................... 166, 168Camera, Trailer Surround View..................... 173Capacities, Antifreeze (Engine Coolant)........ 418Capacities, Fluid........................................... 418Caps, FillerOil (Engine)............................................... 350Power Steering......................................... 148Radiator (Coolant Pressure)..................... 369Car Washes................................................... 408Carbon Monoxide Warning............................ 324Cargo Light....................................................... 54CD................................................................. 232Cellular Phone.............................................. 263Center High Mounted Stop Light................... 388Center Seat Storage Compartment.................. 66Changing A Flat Tire...................................... 329Charge Air Cooler.......................................... 370Chart, Tire Sizing........................................... 390Check Engine Light
(Malfunction Indicator Light)......................... 112Checking Your Vehicle For Safety................. 321Checks, Safety.............................................. 321Child Restraint.............................................. 305
Child RestraintsBooster Seats........................................... 308Child Seat Installation...................... 315, 317How To Stow An unused ALR Seat Belt..... 313Infant And Child Restraints....................... 307Locating The LATCH Anchorages.............. 312Lower Anchors And Tethers For Children.. 310Older Children And Child Restraints.......... 308Seating Positions...................................... 309Clean Air Gasoline......................................... 413CleaningWheels...................................................... 403Climate Control................................................58Automatic....................................................59Manual........................................................62Cold Weather Operation................................ 117Compact Spare Tire...................................... 401Connected Services...................................... 244Connected Services FAQ............................... 258Connected Services Features....................... 247Connected Services, Getting Started............ 246Connected Services, Introduction................. 244Contract, Service........................................... 424Controls........................................................ 224Cooling Pressure Cap (Radiator Cap)............ 369
11

23_DPF_OM_EN_USC_t.book Page 429

430 Cooling System
.............................................. 368Adding Coolant (Antifreeze)....................... 369Coolant Level.................................. 368, 370Cooling Capacity........................................ 418Disposal Of Used Coolant.......................... 370Drain, Flush, And Refill.............................. 368Inspection................................................. 370Points To Remember................................. 370Pressure Cap............................................. 369Radiator Cap............................................. 369Selection Of Coolant (Antifreeze)..... 368, 419Corrosion Protection...................................... 407Cruise Control (Speed Control)... 148, 149, 150Cruise Light................................................... 110Customer Assistance..................................... 422Cybersecurity................................................. 199
D
Daytime Running Lights................................... 52Dealer Service............................................... 353Defroster, Rear Window................................... 62Defroster, Windshield............................. 62, 322Delay (Intermittent) Wipers.............................. 57Deleting A Phone........................................... 238Diagnostic System, Onboard......................... 111Diesel Exhaust Brake.................................... 129Diesel Fuel..................................................... 415Diesel Fuel Requirements............................. 415Diesel Fuel System, Re-Priming..................... 363Differential, Limited Slip................................ 147
Dipsticks Power Steering......................................... 148Disabled Vehicle Towing............................... 339Disc Drive..................................................... 232Disconnecting............................................... 238DisposalAntifreeze (Engine Coolant)...................... 370Disturb.......................................................... 241Door Ajar....................................................... 105Door Ajar Light.............................................. 105Door LocksAutomatic.................................................... 27Doors............................................................... 24Draining Fuel/Water Separator Filter............ 360Driver Memory Presets................................. 230Driver’s Seat Back Tilt...................................... 31DrivingThrough Flowing, Rising, Or Shallow Standing Water
................................................... 198Dual Rear Wheels....................... 332, 406, 411
E
Electric Brake Control System....................... 271Anti-Lock Brake System............................ 270Electronic Roll Mitigation................. 272, 277Electrical Power Outlets................................... 71Electronic Range Select (ERS)............. 134, 137Electronic Stability Control (ESC).................. 272Electronic Throttle Control Warning Light...... 104Electronically Shifted Transfer Case.... 140, 143
Emergency Braking.............................. 128, 280Emergency, In Case OfFreeing Vehicle When Stuck..................... 338Hazard Warning Flasher........................... 325Jacking...................................................... 329Jump Starting........................................... 333Emission Control System Maintenance......... 112Engine.................................................. 350, 351Air Cleaner................................................ 355Block Heater............................................. 119Break-In Recommendations............ 127, 128Compartment........................................... 351Compartment Identification...................... 350Coolant (Antifreeze).................................. 419Exhaust Gas Caution................................ 324Fails To Start............................................. 116Flooded, Starting...................................... 116Fuel Requirements................................... 413Identification............................................. 351Idling......................................................... 124Jump Starting........................................... 333Oil.................................................... 353, 419Oil Filler Cap............................................. 350Oil Filter.................................................... 354Oil Reset......................................................92Oil Selection.............................................. 353Oil Synthetic.............................................. 354Overheating.............................................. 335Runaway................................................... 176Starting..................................................... 115

23_DPF_OM_EN_USC_t.book Page 430

431

Enhanced Accident Response Feature
.. 302, 341
Ethanol.......................................................... 414Exhaust Brake............................................... 129Exhaust Gas Cautions.................................... 324Exhaust System.......................... 324, 367, 375Exterior Lighting............................................... 51Exterior Lights......................................... 51, 324
F
Family Alerts.................................................. 258Filters Air Cleaner................................................. 355Air Conditioning.................................. 65, 358Engine Fuel..................................... 360, 419Engine Oil........................................ 354, 419Engine Oil Disposal................................... 354FlashersTurn Signals..............................54, 110, 324Flash-To-Pass.................................................. 52Flat Tire Stowage........................................... 332Fluid Capacities............................................. 418Fluid Leaks.................................................... 324Fluid Level ChecksBrake........................................................ 371Power Steering.......................................... 148Fog Lights............................................... 54, 387Fold Flat Load Floor......................................... 68Fold-Flat Seats................................................. 31Forward Collision Warning............................. 278Four Wheel Drive........................................... 140
Four-Way Hazard Flasher.............................. 325Freeing A Stuck Vehicle................................ 338Front Axle (Differential)................................. 374Fuel............................................. 177, 413, 415Adding...................................................... 177Additives................................................... 413Clean Air................................................... 413Diesel.............................................. 177, 415Ethanol..................................................... 414Filler Cap (Gas Cap).................................. 177Filter................................................ 360, 419Gasoline................................................... 413Light......................................................... 107Materials Added....................................... 413Methanol.................................................. 414Octane Rating........................................... 413Requirements.................................. 413, 415Specifications........................................... 416Tank Capacity........................................... 418Fuses............................................................ 377
G
Garage Door Opener (HomeLink®).................. 47Gas Cap (Fuel Filler Cap).............................. 177Gasoline, Clean Air........................................ 413Gasoline, Reformulated................................ 413GaugesVoltage..................................................... 122Gear Ranges................................................. 135Gear Selector Override................................. 336
Glass Cleaning.............................................. 410Glove Compartment Storage............................65Gross Axle Weight Rating.............................. 182Gross Vehicle Weight Rating......................... 181GuideBody Builders...............................................10GVWR............................................................ 180
H
HazardDriving Through Flowing, Rising, Or Shallow Standing Water
.................................... 198Hazard Warning Flashers.............................. 325Head Restraints...............................................36Head Rests......................................................36Headlights..................................................... 386Automatic High Beam..................................52Cleaning.................................................... 408High Beam...................................................52Lights On Reminder.....................................54Passing........................................................52Switch..........................................................51Heated Mirrors.................................................46Heated Seats...................................................35Hill Descent Control...................................... 274Hill Descent Control Indicator....................... 274Hill Start Assist.............................................. 276HitchesTrailer Towing........................................... 185
11

23_DPF_OM_EN_USC_t.book Page 431

432 HomeLink® (Garage Door Opener)
.................. 47Hood Prop........................................................ 77Hood Release.................................................. 77Hub Caps....................................................... 332
I
Idle-Up Feature.............................................. 124Ignition............................................................ 18Switch......................................................... 18Inside Rearview Mirror............................ 39, 326Instrument Cluster........ 83, 84, 85, 86, 87, 89Descriptions.............................................. 110Display........................................................ 89Engine Oil Reset.......................................... 92Instrument Panel Lens Cleaning.................... 410Integrated Trailer Brake Control.................... 188Interior Appearance Care............................... 409Interior Lights.................................................. 55Intermittent Wipers (Delay Wipers).................. 57Intervention Regeneration Strategy........ 98, 364Inverter Outlet (115V)...................................... 72
J
Jack Location................................................ 329Jack Operation.............................................. 329Jacking And Tire Changing............................ 329Jacking And Tire Changing
b
...................... 329Jump Starting............................................... 333
K
Key Fob Panic Alarm
................................................. 16Programming Additional Key Fobs............... 17Key Fob Battery Service
(Remote Keyless Entry).................................... 16
Key Fob Programming (Remote Keyless Entry).. 17
Keyless Enter 'n Go™.................... 25, 115, 117Passive Entry............................................... 25Keys................................................................. 15
L
Lane Change And Turn Signals........................ 54Lane Change Assist......................................... 54LaneSense.................................................... 163Latches......................................................... 324Hood............................................................ 77
Lead Free Gasoline....................................... 413Leaks, Fluid................................................... 324Life Of Tires................................................... 399Light Bulbs........................................... 324, 384LIghtsElectrinic Power Steering Pump................ 105Oil Temperature........................................ 104Lights............................................................ 324Air Bag.................................... 103, 297, 322Automatic High Beam..................................52Brake Assist Warning................................ 274Brake Warning.......................................... 103Bulb Replacement.................................... 384Cab Top Clearance................................... 388Cargo...........................................................54Center Mounted Stop............................... 388Courtesy/Reading........................................55Cruise....................................................... 110Daytime Running.........................................52
Electronic Stability Program (ESP) Indicator.... 104
Exterior.............................................. 51, 324Fog............................................................ 387Four Wheel Drive Indicator....................... 147

23_DPF_OM_EN_USC_t.book Page 432