2023 RAM 1500 brake fluid

6
SAFETY
SAFETY FEATURES........................................................... 262
Anti-Lock Brake System (ABS) ................................. 262Rear Seat Reminder Alert (RSRA) ............................ 263
Electronic Brake Control (EBC) System .................. 263
AUXILIARY DRIVING SYSTEMS ...................................... 269 Blind Spot Monitoring (BSM) —
If Equipped ............................................................... 269
Forward Collision Warning (FCW) With
Mitigation — If Equipped ........................................... 274
Tire Pressure Monitoring System (TPMS) ............... 277
OCCUPANT RESTRAINT SYSTEMS ................................ 282 Occupant Restraint Systems Features ................... 282Important Safety Precautions .................................. 282Seat Belt Systems .................................................... 282
Supplemental Restraint Systems (SRS) .................. 288Child Restraints ........................................................ 298
SAFETY TIPS .................................................................... 311 Transporting Passengers .......................................... 311
Transporting Pets ..................................................... 311
Connected Vehicles .................................................. 311
Safety Checks You Should Make Inside
The Vehicle ............................................................... 311
Periodic Safety Checks You Should Make
Outside The Vehicle .................................................. 312
Exhaust Gas ............................................................. 313Carbon Monoxide Warnings .................................... 313
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS .................................... 314
ASSIST AND SOS SYSTEM — IF EQUIPPED ................. 314
JACKING AND TIRE CHANGING .................................... 317 Preparations For Jacking.......................................... 317Jack Location ............................................................ 318
Removal Of Jack And Tools ...................................... 318
Removing The Spare Tire ......................................... 319
Jacking Instructions.................................................. 321To Stow The Flat Or Spare ....................................... 323
Reinstalling The Jack And Tools .............................. 324
JUMP STARTING ............................................................. 325 Preparations For Jump Start .................................... 325Jump Starting Procedure.......................................... 325
REFUELING IN EMERGENCY........................................... 326
IF YOUR ENGINE OVERHEATS ....................................... 327
MANUAL PARK RELEASE ............................................... 328
FREEING A STUCK VEHICLE .......................................... 329
TOWING A DISABLED VEHICLE ..................................... 330 Two-Wheel Drive Models .......................................... 331Four-Wheel Drive Models ......................................... 331
Emergency Tow Hooks — If Equipped ..................... 332
ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS) .............................................................................. 332
EVENT DATA RECORDER (EDR) ..................................... 332
SERVICING AND MAINTENANCE
SCHEDULED SERVICING ................................................. 333 Maintenance Plan ..................................................... 334
ENGINE COMPARTMENT ................................................337 3.6L Engine With Stop/Start ................................... 337
5.7L Engine Without Stop/Start ............................... 3385.7L Engine With Stop/Start .................................... 339
Checking Oil Level ..................................................... 340Adding Washer Fluid ................................................ 340
Maintenance-Free Battery ....................................... 340Pressure Washing ..................................................... 341
VEHICLE MAINTENANCE ................................................. 341 Engine Oil .................................................................. 341
Engine Oil Filter ........................................................ 342
Engine Air Cleaner Filter .......................................... 342
Air Conditioner Maintenance ................................... 344
Accessory Drive Belt Inspection ............................... 346Body Lubrication ....................................................... 347
Windshield Wiper Blades ......................................... 347
Exhaust System ........................................................ 348
Cooling System ......................................................... 349
Brake System ........................................................... 352
Automatic Transmission .......................................... 353
Rear Axle And 4x4 Front Driving Axle
Fluid Level ................................................................. 353
Transfer Case ........................................................... 354
Fuses .......................................................................... 354Bulb Replacement .................................................... 365

23_DT_OM_EN_USC_t.book Page 6

7
TIRES ................................................................................. 370Tire Safety Information ............................................ 370
Tires — General Information .................................... 377
Tire Types................................................................... 380
Spare Tires — If Equipped ........................................ 381Wheel And Wheel Trim Care .................................... 383
Snow Traction Devices ............................................ 384
Tire Rotation Recommendations ............................ 386
DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES .................................................. 386 Treadwear .................................................................. 386
Traction Grades ......................................................... 387
Temperature Grades................................................. 387
STORING THE VEHICLE ................................................... 387
BODYWORK ...................................................................... 388 Protection From Atmospheric Agents ..................... 388
Body And Underbody Maintenance ......................... 388Preserving The Bodywork ......................................... 388
INTERIORS ....................................................................... 390 Seats And Fabric Parts ............................................. 390
Plastic And Coated Parts .......................................... 390
Leather Surfaces....................................................... 391Glass Surfaces ......................................................... 391TECHNICAL SPECIFICATIONS
VEHICLE IDENTIFICATION NUMBER (VIN)..................... 392
BRAKE SYSTEM .............................................................. 392
WHEEL AND TIRE TORQUE SPECIFICATIONS ............. 392 Torque Specifications .............................................. 392
FUEL REQUIREMENTS .................................................... 393 3.6L Engine .............................................................. 393
5.7L Engine ............................................................... 393Reformulated Gasoline ........................................... 393Materials Added To Fuel ......................................... 393
Gasoline/Oxygenate Blends ................................... 394Do Not Use E-85 In Non-Flex Fuel Vehicles ............ 394
CNG And LP Fuel System Modifications.................. 394
Methylcyclopentadienyl Manganese
Tricarbonyl (MMT) In Gasoline ................................. 394
Fuel System Cautions ............................................... 394
FLUID CAPACITIES .......................................................... 395
ENGINE FLUIDS AND LUBRICANTS .............................. 396
CHASSIS FLUIDS AND LUBRICANTS ............................ 397
CUSTOMER ASSISTANCE
SUGGESTIONS FOR OBTAINING SERVICE FOR YOUR
VEHICLE ............................................................................398 Prepare For The Appointment .................................. 398
Prepare A List ............................................................ 398Be Reasonable With Requests ................................. 398
IF YOU NEED ASSISTANCE .............................................398 Roadside Assistance ................................................. 398
FCA US LLC Customer Center ................................... 399
FCA Canada Inc. Customer Center........................... 399
Mexico ........................................................................ 399
Puerto Rico And US Virgin Islands............................ 399
Customer Assistance For The Hearing Or
Speech Impaired (TDD/TTY) ..................................... 400
Service Contract ....................................................... 400
WARRANTY INFORMATION.............................................400
MOPAR® PARTS ..............................................................400
REPORTING SAFETY DEFECTS ......................................401 In The 50 United States And Washington, D.C........ 401
In Canada................................................................... 401
PUBLICATION ORDER FORMS .......................................401
CHANGE OF OWNERSHIP OR ADDRESS.......................402
GENERAL INFORMATION................................................. 402

23_DT_OM_EN_USC_t.book Page 7

108GETTING TO KNOW YOUR INSTRUMENT PANEL
RED WARNING LIGHTS
Air Bag Warning Light
This warning light will illuminate to indicate a
fault with the air bag, and will turn on for four to
eight seconds as a bulb check when the
ignition is placed in the ON/RUN or ACC/ON/
RUN position. This light will illuminate with a single chime
when a fault with the air bag has been detected, it will stay
on until the fault is cleared. If the light is either not on
during startup, stays on, or turns on while driving, have the
system inspected at an authorized dealer as soon as
possible.
Brake Warning Light
This warning light monitors various brake
functions, including brake fluid level and
parking brake application. If the brake light
turns on it may indicate that the parking brake
is applied, that the brake fluid level is low, or that there is
a problem with the Anti-Lock Brake System reservoir.
If the light remains on when the parking brake has been
disengaged, and the fluid level is at the full mark on the
master cylinder reservoir, it indicates a possible brake
hydraulic system malfunction or that a problem with the
Brake Booster has been detected by the Anti-Lock Brake
System (ABS) / Electronic Stability Control (ESC) system.
In this case, the light will remain on until the condition has
been corrected. If the problem is related to the brake
booster, the ABS pump will run when applying the brake,
and a brake pedal pulsation may be felt during each stop. The dual brake system provides a reserve braking capacity
in the event of a failure to a portion of the hydraulic
system. A leak in either half of the dual brake system is
indicated by the Brake Warning Light, which will turn on
when the brake fluid level in the master cylinder has
dropped below a specified level.
The light will remain on until the cause is corrected.
NOTE:The light may flash momentarily during sharp cornering
maneuvers, which change fluid level conditions. The
vehicle should have service performed, and the brake
fluid level checked.
If brake failure is indicated, immediate repair is necessary.
Vehicles equipped with the Anti-Lock Brake System (ABS)
are also equipped with Electronic Brake Force Distribution
(EBD). In the event of an EBD failure, the Brake Warning
Light will turn on along with the ABS Light. Immediate
repair to the ABS system is required.
Operation of the Brake Warning Light can be checked by
turning the ignition switch from the OFF position to the
ON/RUN position. The light should illuminate for
approximately two seconds.
The light should then turn off unless the parking brake is
applied or a brake fault is detected. If the light does not
illuminate, have the light inspected by an authorized
dealer.
The light also will turn on when the parking brake is
applied with the ignition switch in the ON/RUN position.
NOTE:This light shows only that the parking brake is applied.
It does not show the degree of brake application.
Battery Charge Warning Light
This warning light will illuminate when the
battery is not charging properly. If it stays on
while the engine is running, there may be a
malfunction with the charging system. Contact
an authorized dealer as soon as possible.
This indicates a possible problem with the electrical
system or a related component.
Door Open Warning Light
This indicator will illuminate when a door is
ajar/open and not fully closed.
NOTE:If the vehicle is moving there will also be a single chime.
WARNING!
Driving a vehicle with the red brake light on is
dangerous. Part of the brake system may have failed. It
will take longer to stop the vehicle. You could have a
collision. Have the vehicle checked immediately.

23_DT_OM_EN_USC_t.book Page 108

110GETTING TO KNOW YOUR INSTRUMENT PANEL
Oil Temperature Warning Light
This warning light will illuminate to indicate the
engine oil temperature is high. If the light turns
on while driving, stop the vehicle and shut off
the engine as soon as possible. Wait for oil
temperature to return to normal levels.
Seat Belt Reminder Warning Light
This warning light indicates when the driver or
passenger seat belt is unbuckled. When the
ignition is first placed in the ON/RUN or ACC/
ON/RUN position and if the driver’s seat belt is
unbuckled, a chime will sound and the light will turn on.
When driving, if the driver or front passenger seat belt
remains unbuckled, the Seat Belt Reminder Light will flash
or remain on continuously and a chime will sound
Úpage 282.
Tailgate Open Warning Light
This warning light will illuminate when the
tailgate is open.
NOTE:If the vehicle is moving, there will also be a single chime.
Trailer Brake Disconnected Warning Light
This warning light will illuminate when the
Trailer Brake has been disconnected.
Transmission Temperature Warning
Light — If Equipped
This warning light will illuminate to warn of a
high transmission fluid temperature. This may
occur with strenuous usage such as trailer
towing. If this light turns on, stop the vehicle
and run the engine at idle or slightly faster, with the
transmission in PARK or NEUTRAL, until the light turns off.
Once the light turns off, you may continue to drive
normally.
Vehicle Security Warning Light —
If Equipped
This light will flash at a fast rate for
approximately 15 seconds when the vehicle
security system is arming, and then will flash
slowly until the vehicle is disarmed.
YELLOW WARNING LIGHTS
Adaptive Cruise Control (ACC) Fault
Warning Light — If Equipped
This warning light will illuminate to indicate a
fault in the ACC system. Contact an authorized
dealer for service
Úpage 145.
Air Suspension Fault Warning Light —
If Equipped
This light will illuminate when a fault is
detected with the air suspension system.
Anti-Lock Brake System (ABS)
Warning Light
This warning light monitors the ABS. The light
will turn on when the ignition is placed in the
ON/RUN or ACC/ON/RUN position and may
stay on for as long as four seconds.
If the ABS light remains on or turns on while driving, then
the Anti-Lock portion of the brake system is not
functioning and service is required as soon as possible.
However, the conventional brake system will continue to
operate normally, assuming the Brake Warning Light is not
also on.
If the ABS light does not turn on when the ignition is placed
in the ON/RUN or ACC/ON/RUN position, have the brake
system inspected by an authorized dealer.
WARNING!
If you continue operating the vehicle when the
Transmission Temperature Warning Light is illuminated
you could cause the fluid to boil over, come in contact
with hot engine or exhaust components and cause a
fire.
CAUTION!
Continuous driving with the Transmission Temperature
Warning Light illuminated will eventually cause severe
transmission damage or transmission failure.

23_DT_OM_EN_USC_t.book Page 110

GETTING TO KNOW YOUR INSTRUMENT PANEL111
Electric Park Brake Warning Light
This warning light will illuminate to indicate the
Electric Park Brake is not functioning properly
and service is required. Contact an authorized
dealer.
Electronic Stability Control (ESC) Active
Warning Light — If Equipped
This warning light will indicate when the ESC
system is Active. The ESC Indicator Light in the
instrument cluster will come on when the
ignition is placed in the ON/RUN or ACC/ON/
RUN position, and when ESC is activated. It should go out
with the engine running. If the ESC Indicator Light comes
on continuously with the engine running, a malfunction
has been detected in the ESC system. If this warning light
remains on after several ignition cycles, and the vehicle
has been driven several miles (kilometers) at speeds
greater than 30 mph (48 km/h), see an authorized dealer
as soon as possible to have the problem diagnosed and
corrected.
 The ESC OFF Indicator Light and the ESC Indicator Light
come on momentarily each time the ignition is placed
in the ON/RUN or ACC/ON/RUN position.
 The ESC system will make buzzing or clicking sounds
when it is active. This is normal; the sounds will stop
when ESC becomes inactive.
 This light will come on when the vehicle is in an ESC
event.
Electronic Stability Control (ESC) OFF
Warning Light — If Equipped
This warning light indicates the ESC is off.
Each time the ignition is turned to ON/RUN or
ACC/ON/RUN, the ESC system will be on, even
if it was turned off previously.
Service LaneSense Warning Light —
If Equipped
This warning light will illuminate when the
LaneSense system is not operating and
requires service. Please contact an authorized
dealer.
Low Fuel Warning Light
When the fuel level is less than a quarter tank,
and the Distance to Empty is less than
50 miles, this light will turn on and remain on
until fuel is added.
A single warning chime will sound with Low Fuel Warning.
Low Washer Fluid Warning Light —
If Equipped
This warning light will illuminate when the
windshield washer fluid is low.
Engine Check/Malfunction Indicator
Warning Light (MIL)
The MIL is a part of an Onboard Diagnostic
System called OBD II that monitors engine and
automatic transmission control systems. This
warning light will illuminate when the ignition is
in the ON/RUN position before engine start. If the bulb
does not come on when turning the ignition switch from
OFF to ON/RUN, have the condition checked promptly.
Certain conditions, such as a loose or missing gas cap,
poor quality fuel, etc., may illuminate the light after engine
start. The vehicle should be serviced if the light stays on
through several typical driving styles. In most situations,
the vehicle will drive normally and will not require towing.
When the engine is running, the MIL may flash to alert
serious conditions that could lead to immediate loss of
power or severe catalytic converter damage. The vehicle
should be serviced by an authorized dealer as soon as
possible if this occurs.
WARNING!
A malfunctioning catalytic converter can reach higher
temperatures than in normal operating conditions. This
can cause a fire if you drive slowly or park over
flammable substances such as dry plants, wood,
cardboard, etc. This could result in death or serious
injury to the driver, occupants or others.
3

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172STARTING AND OPERATING
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, do 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.
RIM SIZE
This is the rim size that is appropriate for the tire size
listed.
INFLATION PRESSURE
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full Gross Axle Weight Rating
(GAWR).
CURB WEIGHT
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weight
values are determined by weighing your vehicle on a
commercial scale before any occupants or cargo are
added.
LOADING
The actual total weight and the weight of the front and rear
of your vehicle at the ground can best be determined by
weighing it when it is loaded and ready for operation. The entire vehicle should first be weighed on a commercial
scale to ensure that the Gross Vehicle Weight Rating
(GVWR) has not been exceeded. The weight on the front
and rear of the vehicle should then be determined
separately to be sure that the load is properly distributed
over the front and rear axle. Weighing the vehicle may
show that the Gross Axle Weight Rating (GAWR) of either
the front or rear axles has been exceeded but the total
load is within the specified GVWR. If so, weight must be
shifted from front to rear or rear to front as appropriate
until the specified weight limitations are met. Store the
heavier items down low and be sure that the weight is
distributed equally. Stow all loose items securely before
driving.
Improper weight distributions can have an adverse effect
on the way your vehicle steers and handles and the way
the brakes operate.
WARNING!
Do not load your vehicle any heavier than the GVWR or
the maximum front and rear GAWR. If you do, parts on
your vehicle can break, or it can change the way your
vehicle handles. This could cause you to lose control.
Overloading can shorten the life of your vehicle.

23_DT_OM_EN_USC_t.book Page 172

STARTING AND OPERATING185
BEFORE PLOWING
Check the hydraulic system for leaks and proper fluid
level.
 Check the mounting bolts and nuts for proper tight -
ness.
 Check the runners and cutting edge for excessive wear.
The cutting edge should be ¼ to ½ inches
(6 cm to 1.2 cm) above ground in snow plowing
position.
 Check that snowplow lighting is connected and
functioning properly.
SNOWPLOW PREP PACKAGE MODEL
A
VAILABILITY
For Information about snowplow applications visit
www.ramtrucks.com or refer to the current Body Builder’s
Guide.

1. The maximum number of occupants in the truck
should not exceed one.

2. The total GVWR, Front GAWR or the Rear GAWR should never be exceeded.
3. Cargo capacity will be reduced by the addition of options or passengers, etc.
The loaded vehicle weight, including the snowplow
system, all aftermarket accessories, driver, passengers,
options, and cargo, must not exceed either the Gross
Vehicle Weight (GVWR) or Gross Axle Weight (GAWR)
ratings. These weights are specified on the Safety Compliance Certification Label on the driver's side door
opening.
NOTE:Detach the snowplow when transporting passengers.
Vehicle front end wheel alignment was set to
specifications at the factory without consideration for the
weight of the plow. Front end toe-in should be checked
and reset if necessary at the beginning and end of the
snowplow season. This will help prevent uneven tire wear.
The blade should be lowered whenever the vehicle is
parked.
Maintain and operate your vehicle and snowplow
equipment following the recommendations provided by
the specific snowplow manufacturer.
OVER THE ROAD OPERATION WITH
S
NOWPLOW ATTACHED
The blade restricts air flow to the radiator and causes the
engine to operate at higher than normal temperatures.
Therefore, when transporting the plow, angle the blade
completely and position it as low as road or surface
conditions permit. Do not exceed 40 mph (64 km/h). The
operator should always maintain a safe stopping distance
and allow adequate passing clearance.
NOTE:Lane Departure Warning / Lane Keep Assist is not
available when a snow plow is attached.
OPERATING TIPS
Under ideal snow plowing conditions, 20 mph (32 km/h)
should be maximum operating speed. The operator should
be familiar with the area and surface to be cleaned.
Reduce speed and use extreme caution when plowing
unfamiliar areas or under poor visibility.
GENERAL MAINTENANCE
Snowplows should be maintained in accordance with the
plow manufacturer's instructions.
Keep all snowplow electrical connections and battery
terminals clean and free of corrosion.
When plowing snow, to avoid transmission and drivetrain
damage, the following precautions should be observed:
 Operate with transfer case in 4WD LOW when plowing
small or congested areas where speeds are not likely to
exceed 15 mph (24 km/h). At higher speeds operate in
4WD HIGH.
 Vehicles with automatic transmissions should use
4WD LOW when plowing deep or heavy snow for
extended periods of time to avoid transmission over -
heating.
 Do not shift the transmission unless the engine has
returned to idle and wheels have stopped. Make a
practice of stepping on the brake pedal while shifting
the transmission.
4

23_DT_OM_EN_USC_t.book Page 185

STARTING AND OPERATING187
(Continued)
RECREATIONAL TOWING —
F
OUR-WHEEL DRIVE MODELS
NOTE:The transfer case must be shifted into N (Neutral) for
recreational towing. The transmission must be shifted into
PARK for recreational towing. Refer to the following for the
proper transfer case N (Neutral) shifting procedure for
your vehicle.
Shifting Into N (Neutral)
Use the following procedure to prepare your vehicle for
recreational towing.
1. Bring the vehicle to a complete stop on level ground,
with the engine running. Apply the parking brake.

2. Press and hold the brake pedal.
3. Shift the transmission to NEUTRAL. The driver's door must be closed (or the driver's seat belt buckled) so
that the transmission will remain in NEUTRAL when
the brake pedal is released.
NOTE:If vehicle is equipped with air suspension, ensure the
vehicle is set to Normal Ride Height.
4. Using a ballpoint pen or similar object, push and hold the recessed transfer case N (Neutral) button (at the
center of the transfer case switches). The N (Neutral)
indicator light will illuminate, and remain lit, when the
shift to N (Neutral) is complete. After the shift is
completed and the N (Neutral) light stays on, release
the N (Neutral) button.
CAUTION!
DO NOT dolly tow any 4WD vehicle. Towing with only
one set of wheels on the ground (front or rear) will
cause severe transmission and/or transfer case
damage. Tow with all four wheels either ON the
ground, or OFF the ground (using a vehicle trailer).
 Tow only in the forward direction. Towing this vehicle
backwards can cause severe damage to the transfer
case.
 Before recreational towing, the transfer case must
be in N (Neutral). To be certain the transfer case is
fully in N (Neutral), perform the procedure outlined
under “Shifting Into N (Neutral)”. Internal transmis -
sion damage will result, if the transfer case is not in
N (Neutral) during towing.
 The transmission must be in PARK for recreational
towing.
 Ensure that the Electric Park Brake is released, and
remains released, while being towed.
Towing this vehicle in violation of the above require -
ments can cause severe transmission and/or
transfer case damage. Damage from improper
towing is not covered under the New Vehicle Limited
Warranty.
 Do not disconnect the rear driveshaft because fluid
will leak from the transfer case, causing damage to
internal parts.
 Do not use a fascia/bumper-mounted clamp-on tow
bar on your vehicle. The fascia/bumper face bar will
be damaged.
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 driveshafts 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.
CAUTION!CAUTION!
It is necessary to follow these steps to be certain that
the transfer case is fully in N (Neutral) before
recreational towing to prevent damage to internal parts.
4

23_DT_OM_EN_USC_t.book Page 187