2023 RAM CHASSIS CAB service indicator

360SERVICING AND MAINTENANCE
When inspecting accessory drive belts, small
cracks that run across ribbed surface of belt from
rib to rib, are considered normal. These are not a
reason to replace belt. However, cracks running
along a rib (not across) are not normal. Any belt
with cracks running along a rib must be replaced.
Also have the belt replaced if it has excessive wear,
frayed cords or severe glazing.

Accessory Belt (Serpentine Belt)

Conditions that would require replacement:
Rib chunking (one or more ribs has separated
from belt body)
Rib or belt wear
Longitudinal belt cracking (cracks between two
ribs)
Belt slips
Groove jumping (belt does not maintain correct
position on pulley)
Belt broken (identify and correct problem before
new belt is installed)
Noise (objectionable squeal, squeak, or rumble
is heard or felt while drive belt is in operation)
Some conditions can be caused by a faulty
component such as a belt pulley. Belt pulleys
should be carefully inspected for damage and
proper alignment.
Belt replacement on some models requires the
use of special tools, we recommend having your
vehicle serviced at an authorized dealer.
DRAINING FUEL/WATER SEPARATOR
F
ILTER
There are two fuel filter assemblies. One is located
on the driver's side of the engine. The best access
to this water drain valve is from under the hood.
The second one is on the under body, located in
front of the rear axle above the drive shaft on
pick-up models. The second filter location is on the
frame behind the front axle. The best access to this
water drain valve is from under the vehicle. If water is detected in the water separator while the
engine is running, or while the ignition switch is in
the ON position, the Water In Fuel Indicator Light
will illuminate and an audible chime will be heard
five times. At this point you should stop the engine
and drain the water from both of the filters.
If the Water In Fuel Indicator Light comes on and a
single chime is heard while you are driving, or with
the ignition switch in the ON position, there may be
a problem with your water separator wiring or
sensor. See an authorized dealer for service.
CAUTION!
Do not drain the fuel/water separator filter
when the engine is running.
Diesel fuel will damage blacktop paving
surfaces. Drain the filter into an appropriate
container.
CAUTION!
If the Water In Fuel Indicator Light remains on,
DO NOT START the engine before you drain water
from the fuel filters to avoid engine damage.

23_DPF_OM_EN_USC_t.book Page 360

SERVICING AND MAINTENANCE361
(Continued)
Upon proper draining of the water from both fuel
filters, the Water In Fuel Indicator Light will remain
illuminated for approximately 10 seconds. If the
water was drained while the engine was running,
the Water In Fuel Indicator Light may remain on for
approximately three minutes.
NOTE:Care should be taken in disposing of used fluids
from your vehicle. Used fluids, indiscriminately
discarded, can present a problem to the envi
-
ronment. Contact an authorized dealer, service
station, or government agency for advice on recy -
cling programs and for where used fluids and
filters can be properly disposed of in your area.
Drain the fuel/water separator filters when the
Water In Fuel Indicator Light is ON. Within
10 minutes of vehicle shutdown, turn the engine
mounted filter drain valve (located on the side of
the filter assembly) counterclockwise a quarter
turn, and turn the under body mounted filter drain
valve (located on the bottom of the filter assembly)
counterclockwise one full turn. Then turn the
ignition switch to the ON position, and allow any
accumulated water to drain. Leave the drain valve
open until all water and contaminants have been
removed. When clean fuel is visible, close the drain
valve following these guidelines:
1. Rotate the drain clockwise to close until you
feel resistance from the internal seal.

2. Continue turning the drain half of a turn to properly compress the seal.
NOTE:Over-compression of the seal due to overtightening
of the drain will damage the seal, cause a leak, and
require the entire sensor to be replaced.
3. Turn the ignition switch to OFF.
The sensor drain should not be overtightened
during normal service operations to avoid internal
damage and future fuel leaks. The drain should be
closed and secured without the use of tools.
If more than a couple ounces/milliliters of fuel
have been drained, follow the directions
Úpage 363
ENGINE MOUNTED FUEL FILTER
R
EPLACEMENT
NOTE:
Using a fuel filter that does not meet the manu -
facturer's filtration and water separating
requirements can severely impact fuel system
life and reliability.
The engine mounted filter housing is equipped
with a No-Filter-No-Run (NFNR) feature. Engine
will not run if:
No filter is installed.
Inferior/Non-approved filter is used. Use of
OEM filter is required to ensure vehicle will
run.

Engine Mounted Fuel Filter Assembly

1 — Drain Valve
CAUTION!
Diesel fuel will damage blacktop paving
surfaces. Drain the filter into an appropriate
container.
8

23_DPF_OM_EN_USC_t.book Page 361

SERVICING AND MAINTENANCE399
Run Flat Tires — If Equipped
Run Flat tires allow you the capability to drive
50 miles (80 km) at 50 mph (80 km/h) after a
rapid loss of inflation pressure. This rapid loss of
inflation is referred to as the Run Flat mode. A Run
Flat mode occurs when the tire inflation pressure is
of/or below 14 psi (96 kPa). Once a Run Flat tire
reaches the Run Flat mode it has limited driving
capabilities and needs to be replaced immediately.
A Run Flat tire is not repairable. When a Run Flat
tire is changed after being driven under a Run Flat
mode 14 psi (96 kPa) condition, please replace the
TPMS sensor as it is not designed to be reused.
NOTE:TPMS sensor must be replaced after driving the
vehicle on a flat tire condition.
It is not recommended driving a vehicle loaded at
full capacity or to tow a trailer while a tire is in the
Run Flat mode.
See the Tire Pressure Monitoring System section
for more information.
Tire Spinning
When stuck in mud, sand, snow, or ice conditions,
do not spin your vehicle's wheels above 30 mph
(48 km/h) or for longer than 30 seconds
continuously without stopping.
Tread Wear Indicators
Tread wear indicators are in the original equipment
tires to help you in determining when your tires
should be replaced.

Tire Tread
These indicators are molded into the bottom of the
tread grooves. They will appear as bands when the
tread depth becomes 1/16 of an inch (1.6 mm).
When the tread is worn to the tread wear
indicators, the tire should be replaced.
Life Of Tire
The service life of a tire is dependent upon varying
factors including, but not limited to:
Driving style.
Tire pressure - Improper cold tire inflation pres
-
sures can cause uneven wear patterns to
develop across the tire tread. These abnormal
wear patterns will reduce tread life, resulting in
the need for earlier tire replacement.
Distance driven.
Performance tires, tires with a speed rating of V
or higher, and Summer tires typically have a
reduced tread life. Rotation of these tires per
the vehicle scheduled maintenance is highly
recommended.
WARNING!
Fast spinning tires can be dangerous. Forces
generated by excessive wheel speeds may
cause tire damage or failure. A tire could
explode and injure someone. Do not spin your
vehicle's wheels faster than 30 mph (48 km/h)
for more than 30 seconds continuously when
you are stuck, and do not let anyone near a
spinning wheel, no matter what the speed.
1 — Tread Wear Indicators
WARNING!
Tires and the spare tire should be replaced after
six years, regardless of the remaining tread.
Failure to follow this warning can result in
sudden tire failure. You could lose control and
have a collision resulting in serious injury or
death.
8

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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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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
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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

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433
Hazard Warning Flasher
............................ 325Headlights............................................ 51, 52High Beam.................................................. 52Hill Descent Control Indicator.................... 274Interior........................................................ 55Lights On Reminder..................................... 54Low Fuel.................................................... 107Malfunction Indicator (Check Engine).......105Park........................................................... 110Passing........................................................ 52Seat Belt Reminder................................... 103Security Alarm........................................... 104Service...................................................... 384Traction Control......................................... 274Transfer Case............................................ 147Turn Signals.................... 54, 110, 324, 386Warning Instrument Cluster Descriptions................................ 104, 110Limited-Slip Differential....................... 147, 374Load Shed Battery Saver Mode..................... 101Load Shed Battery Saver On.......................... 101Load Shed Electrical Load Reduction............ 101Load Shed Intelligent Battery Sensor............ 101Loading Vehicle............................................. 180Tires.......................................................... 394
LocksAutomatic Door............................................ 27Child Protection........................................... 27Power Door.................................................. 24Low Tire Pressure System............................. 280Lubrication, Body.......................................... 364Lug Nuts/Bolts..................................... 332, 411
M
Maintenance Free Battery............................ 352Maintenance Plan......................................... 346Maintenance Schedule........................ 342, 346Malfunction Indicator Light (Check Engine).. 105ManualPark Release............................................ 337Service..................................................... 426Media Hub....................................................... 70Media Mode.................................................. 232Memory Seat................................................... 30Memory Settings.............................................. 30Methanol...................................................... 414Midline Instrument Cluster — Gasoline
b
...... 79Mirror, Digital Rearview................................... 39Mirror, Digital Trailer Camera........................... 39
Mirrors.............................................................39Electric Powered..........................................43Heated.........................................................46Memory.......................................................30Outside........................................................42Rearview............................................ 39, 326Trailer Towing..............................................42Mobile App.................................................... 246Modifications/AlterationsVehicle.........................................................10Monitor, Tire Pressure System...................... 280Mopar Parts.................................................. 425MP3 Control.....................................................70Multi-Function Control Lever............................51
N
New Vehicle Break-In Period................ 127, 128Noise ControlMaintenance............................................ 375Tampering Prohibited............................... 375Noise Emission Warranty..................... 374, 375
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