warning light RAM 1500 2021 Owners Manual

SERVICING AND MAINTENANCE453
(Continued)
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. FCA strongly
recommends that you use tires equivalent to
the originals in size, quality and performance
when replacement is needed Ú page 452. 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 444.
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.
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 sud -
den tire failure. You could lose control and have
a collision resulting in serious injury or death.
WARNING!
Do not use a tire, wheel size, load rating, or
speed rating other than that specified for
your vehicle. Some combinations of unap -
proved tires and wheels may change
suspension dimensions and performance
characteristics, resulting in changes to
steering, handling, and braking of your
vehicle. This can cause unpredictable
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
overloading and failure. You could lose
control and have a collision.
8

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467
TECHNICAL SPECIFICATIONS
VEHICLE IDENTIFICATION NUMBER
The Vehicle Identification Number (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 the “Brake Warning Light” and the
“ABS Warning Light” will activate during brake
use.
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 Size Lug Nut/
Bolt
Socket Size
130
Ft-Lbs
(176 N·m) Cone
M14 x
1.50 22 mm
9

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468TECHNICAL SPECIFICATIONS
NOTE:
Do not oil wheel studs. For chrome wheels, do
not substitute with chrome plated wheel nuts.
Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion or
loose particles.

Wheel Mounting Surface

Tighten the lug nuts/bolts in a star pattern until
each nut/bolt has been tightened twice. Ensure
that the socket is fully engaged on the lug nut/
bolt (do not insert it halfway).
After 25 miles (40 km), check the lug nut/bolt torque to be sure that all the lug nuts/bolts are
properly seated against the wheel.
Four, Five, And Six Lug Nuts/Bolts Torque Pattern

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.
3.6L 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
optimum fuel economy and
performance when using high quality
unleaded “Regular” gasoline having a posted
octane number of 87 as specified by the (R+M)/
2 method. The use of higher octane “Premium”
gasoline is not required, as it will not provide
any benefit over “Regular” gasoline in these
engines.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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TECHNICAL SPECIFICATIONS471
FUEL REQUIREMENTS – DIESEL ENGINE
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.
Use good quality diesel fuel from a reputable
supplier in your vehicle. For most year-round
service, No. 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 filter using the fuel/water separator
drain provided on the fuel filter housing. 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.
DIESEL FUEL SPECIFICATIONS
This 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.
NOTE:
If you accidentally fill the fuel tank with gaso
-
line on your diesel vehicle, do not start the
engine. Damage to the engine and fuel
system could occur. Please call an autho -
rized dealer for service.
A maximum blend of 5% biodiesel meeting
ASTM specification D-975 may be used with
your diesel engine without any adjustments
to regular service schedules.
Commercially available fuel additives are not
necessary for the proper operation of your
diesel engine.
Number 1 Ultra Low Sulfur diesel fuel should
only be used where extended arctic condi -
tions (-10°F or -23°C) exist.
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 412.9

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CUSTOMER ASSISTANCE481
We appreciate that you have made a major
investment when you purchased the vehicle. An
authorized dealer has also made a major
investment in facilities, tools, and training to
ensure that you are absolutely delighted with
the ownership experience.
WARRANTY INFORMATION
See the Warranty Information for the terms and
provisions of FCA US LLC warranties applicable
to this vehicle and market. Refer to
www.mopar.com/om for further information.
MOPAR® PARTS
Mopar® original equipment parts &
accessories and factory filled fluids are
available from an authorized dealer. They are
recommended for your vehicle to keep it
operating at its best and maintain its original
condition.
REPORTING SAFETY DEFECTS
IN THE 50 UNITED STATES AND
W
ASHINGTON, D.C.
If you believe that your vehicle has a
defect that could cause a crash or cause
injury or death, you should immediately
inform the National Highway Traffic
Safety Administration (NHTSA) in
addition to notifying FCA US LLC.
If NHTSA receives similar complaints, it
may open an investigation, and if it finds
that a safety defect exists in a group of
vehicles, it may order a recall and
remedy campaign. However, NHTSA cannot become involved in individual
problems between you, an authorized
dealer or FCA US LLC.
To contact NHTSA, you may call the
Vehicle Safety Hotline toll free at
1-888-327-4236 (TTY:
1-800-424-9153); or go to
http://
www.safercar.gov
; or write to:
Administrator, NHTSA, 1200 New Jersey
Avenue, SE., West Building, Washington,
D.C. 20590. You can also obtain other
information about motor vehicle safety
from
http://www.safercar.gov.
IN CANADA
If you believe that your vehicle has a
safety defect, you should contact the
Customer Service Department
immediately. Canadian customers who
wish to report a safety defect to the
Canadian government should contact
Transport Canada, Motor Vehicle Defect
Investigations and Recalls at
1-800-333-0510 or go to
wwwapps.tc.gc.ca/Saf-Sec-Sur/7/PCDB-BDPP.
WARNING!
Engine exhaust (internal combustion engines
only), some of its constituents, and certain
vehicle components contain, or emit,
chemicals known to the State of California to
cause cancer and birth defects, or other
reproductive harm. In addition, certain fluids
contained in vehicles and certain products of
component wear contain, or emit, chemicals
known to the State of California to cause
cancer and birth defects, or other
reproductive harm.
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483
INDEX
A
Adaptive Cruise Control (ACC) (Cruise
Control)
................................................ 177, 179Adding Engine Coolant (Antifreeze)............... 422Adding Fuel.......................................... 208, 210Additives, Fuel............................................... 469AdjustDown........................................................... 36Forward....................................................... 36Rearward..................................................... 36Up................................................................ 36Adjustable Pedals............................................ 43Advance Phone Connectivity......................... 279Air BagAir Bag Operation...................................... 344Air Bag Warning Light...................... 342, 345Enhanced Accident Response......... 353, 394Event Data Recorder (EDR)....................... 394Front Air Bag............................................. 345If Deployment Occurs................................ 352Knee Impact Bolsters................................ 349Maintaining Your Air Bag System.............. 354Maintenance............................................. 354Redundant Air Bag Warning Light.............343Transporting Pets...................................... 369Air Bag Light............................... 126, 342, 369
Air Cleaner, Engine (Engine Air Cleaner
Filter)............................................................ 411Air Conditioner Maintenance........................ 415Air Conditioner Refrigerant........................... 415Air Conditioner System................................. 415Air Conditioning................................................ 63Air Conditioning Filter..............................67, 415Air Conditioning System................................... 65Air Conditioning, Operating Tips....................... 66Air Filter........................................................ 411Air PressureTires......................................................... 450Air Suspension..................................... 165, 169AlarmSecurity Alarm....................................26, 127Alterations/ModificationsVehicle......................................................... 11Antifreeze (Engine Coolant)................. 422, 474Disposal................................................... 423Anti-Lock Brake System (ABS)...................... 310Anti-Lock Warning Light................................ 132Assist, Hill Start............................................. 317Audio Settings............................................... 266Audio Systems (Radio).................................. 236Auto Down Power Windows............................. 78Automatic Door Locks...................................... 30
Automatic Headlights.......................................54Automatic High Beams.....................................53Automatic Tailgate Release.............................85Automatic Temperature Control (ATC)..............65Automatic Transmission....................... 156, 426Adding Fluid.............................................. 426Fluid And Filter Change............................. 426Fluid Change............................................. 426Fluid Level Check...................................... 426Fluid Type........................................ 426, 478Special Additives...................................... 426Automatic Transmission Limp Home Mode... 159AutoPark....................................................... 141AUX Camera......................................... 204, 208Auxiliary Driving Systems.............................. 318Axle Fluid.............................................. 426, 478Axle Lubrication............................................ 426
B
Back-Up......................................................... 202Back-Up Camera........................................... 202Battery................................................. 128, 409Charging System Light.............................. 128Keyless Key Fob Replacement....................18Battery Saver Feature......................................57Belts, Seat.................................................... 369
11

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484
Blind Spot Monitoring
.................................... 318Bluetooth Connecting To A Particular Mobile PhoneOr Audio Device After Pairing
................275Body Builders Guide........................................ 11Body Mechanism Lubrication........................ 418B-Pillar Location............................................. 447Brake Assist System...................................... 311Brake Control System.................................... 311Brake Fluid.......................................... 425, 478Brake System...................................... 425, 467Fluid Check............................................... 425Master Cylinder......................................... 425Parking...................................................... 151Warning Light............................................ 126Brake/Transmission Interlock....................... 155Bulb Replacement......................................... 437Bulbs, Light.......................................... 371, 437
C
Camera.......................................................... 202Camera, AUX........................................ 204, 208Camera, Rear...................................... 202, 204Camper............................................................ 97Capacities, Fuel............................................. 474Caps, FillerOil (Engine)................................................ 404Radiator (Coolant Pressure)...................... 423Car Washes................................................... 462
Carbon Monoxide Warning................... 371, 372Cargo Light....................................................... 56CD................................................................. 268Cellular Phone.............................................. 309Center High Mounted Stop Light................... 442Center Seat Storage Compartment.................. 68Charge Air Cooler.......................................... 424Chart, Tire Sizing........................................... 444Check Engine Light (Malfunction Indicator
Light)............................................................. 138Checking Your Vehicle For Safety................. 369Checks, Safety.............................................. 369Child Restraint.............................................. 355Child RestraintsBooster Seats........................................... 358Child Seat Installation..................... 364, 365How To Stow An unused ALR Seat Belt.... 363Infant And Child Restraints....................... 357Locating The LATCH Anchorages.............. 362Lower Anchors And Tethers For Children.. 360Older Children And Child Restraints......... 357Seating Positions...................................... 359Clean Air Gasoline......................................... 469CleaningWheels..................................................... 456Climate Control................................................ 60Automatic.................................................... 60Manual........................................................ 63Cold Weather Operation............................... 146
Compact Spare Tire...................................... 455Connected Services...................................... 282Connected Services FAQ............................... 301Connected Services Features....................... 286Connected Services, Getting Started............ 284Connected Services, Introduction................. 282Contract, Service........................................... 480Controls........................................................ 259Cooling Pressure Cap (Radiator Cap)............ 423Cooling System............................................. 421Adding Coolant (Antifreeze)...................... 422Coolant Level................................... 421, 423Cooling Capacity....................................... 474Disposal Of Used Coolant......................... 423Drain, Flush, And Refill............................. 422Inspection................................................. 423Points To Remember................................ 424Pressure Cap............................................ 423Radiator Cap............................................. 423Selection Of Coolant (Antifreeze)......................... 422, 474, 475Corrosion Protection..................................... 461Cruise ControlAccel/Decel.............................................. 178Cancel....................................................... 179Resume.................................................... 179Cruise Control (Speed Control)............. 177, 179Cruise Light................................................... 136Customer Assistance.................................... 479Cybersecurity................................................ 236

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485
D
Daytime Running Lights
................................... 53Dealer Service............................................... 409Defroster, Rear Window................................... 63Defroster, Windshield............................. 63, 369Deleting A Phone........................................... 275Diagnostic System, Onboard......................... 137Diesel Fuel..................................................... 471Diesel Fuel Requirements............................. 471Bulk Storage Of......................................... 210Diesel Fuel System, Re-Priming..................... 414Differential, Limited Slip................................ 174Disable Vehicle Towing.................................. 392Disc Drive...................................................... 268Disconnecting................................................ 275Disposal Antifreeze (Engine Coolant)....................... 423Disturb........................................................... 278Door Ajar........................................................ 129Door Ajar Light............................................... 129Door LocksAutomatic.................................................... 30Doors............................................................... 27Draining Fuel/Water Separator Filter............ 412Driver Memory Presets.................................. 265Driver’s Seat Back Tilt..................................... 34DrivingThrough Flowing, Rising, Or Shallow Standing Water
..................................... 234Dual Rear Wheels.......................................... 467
E
Electric Brake Control System....................... 311Anti-Lock Brake System............................ 310Electronic Roll Mitigation................. 312, 318Electric Parking Brake................................... 151Electrical Power Outlets................................... 74Electronic Range Select (ERS)...................... 159Electronic Stability Control (ESC).................. 312Electronic Throttle Control Warning Light...... 128Electronically Shifted Transfer Case.... 161, 163Emergency Braking....................................... 327Emergency Gas Can Refueling...................... 389Emergency, In Case OfFreeing Vehicle When Stuck..................... 391Hazard Warning Flasher........................... 373Jump Starting........................................... 386Emission Control System Maintenance........ 138Engine........................................................... 404Air Cleaner................................................ 411Block Heater............................................. 150Break-In Recommendations..................... 150Compartment................404, 405, 406, 407Compartment Identification.............404, 405, 406, 407Coolant (Antifreeze).................................. 475Exhaust Gas Caution....................... 371, 372Fails To Start............................................ 144Flooded, Starting...................................... 144Fuel Requirements.......................... 468, 474Idling........................................................ 148
Jump Starting........................................... 386Oil...........................................410, 474, 475Oil Filler Cap............................................. 404Oil Filter.................................................... 410Oil Selection..................................... 410, 474Oil Synthetic.............................................. 410Overheating.............................................. 389Starting............................................ 143, 144Enhanced Accident Response
Feature................................................ 353, 394Entry System, Illuminated................................58Ethanol.......................................................... 469Exhaust Gas Cautions.......................... 371, 372Exhaust System................................... 371, 420Exterior Lighting...............................................52Exterior Lights........................................ 52, 371
F
Family Alerts................................................. 300FiltersAir Cleaner................................................ 411Air Conditioning................................. 67, 415Engine Fuel............................................... 412Engine Oil........................................ 410, 475Engine Oil Disposal................................... 410FlashersTurn Signals.............................. 55, 136, 371Flash-To-Pass...................................................54Flat Tire Stowage.......................................... 384Fluid Capacities............................................ 474
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486
Fluid Leaks
.................................................... 371Fluid Level Checks Brake........................................................ 425Fluid, Brake................................................... 478Fog Lights............................................... 55, 441Fold-Flat Seats................................................. 34Forward Collision Warning............................. 324Four Wheel Drive........................................... 161Four-Way Hazard Flasher............................... 373Freeing A Stuck Vehicle................................. 391Front Axle (Differential).................................. 426Fuel............................................ 210, 468, 471Adding............................................. 208, 210Additives................................................... 469Clean Air.................................................... 469Ethanol...................................................... 469Filter.......................................................... 412Gasoline.................................................... 468Light.......................................................... 131Materials Added........................................ 469Methanol................................................... 469Octane Rating........................ 468, 469, 475Requirements........................ 468, 471, 474Specifications............................................ 471Tank Capacity............................................ 474Fuses............................................................. 427
G
Garage Door Opener (HomeLink)..................... 49Gasoline, Clean Air........................................ 469Gasoline, Reformulated................................ 469GaugesVoltage..................................................... 146Glass Cleaning.............................................. 466Grocery Bag Retainer....................................... 39Gross Axle Weight Rating.............................. 215Gross Vehicle Weight Rating......................... 214GuideBody Builders.............................................. 11GVWR............................................................ 213
H
HazardDriving Through Flowing, Rising, Or Shallow Standing Water
.................................... 234Hazard Warning Flashers.............................. 373Head Restraints............................................... 40Head Rests...................................................... 40Headlights.................................................... 439Cleaning................................................... 462High Beam................................................... 53High Beam/Low Beam Select Switch.......... 53Lights On Reminder..................................... 55Passing........................................................ 54Switch.......................................................... 52
Heated Mirrors.................................................48Heated Seats...................................................38Heater, Engine Block..................................... 150High Beam/Low Beam Select (Dimmer)
Switch..............................................................53Hill Descent Control...................................... 315Hill Descent Control Indicator....................... 315Hill Start Assist.............................................. 317HitchesTrailer Towing........................................... 218HomeLink (Garage Door Opener).....................49Hood Prop........................................................84Hood Release...................................................84
I
Ignition.............................................................21Switch..........................................................21Illuminated Entry..............................................58Inside Rearview Mirror.................... 44, 45, 373Instrument Cluster............................... 110, 113Descriptions............................ 110, 113, 136Display...................................................... 114Instrument Panel Lens Cleaning................... 465Integrated Trailer Brake Control.................... 223Interior Appearance Care.............................. 464Interior Lights...................................................57Intervention Regeneration Strategy..... 121, 414Inverter Outlet (115V)......................................75

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487
J
Jack Location
................................................. 377Jump Starting................................................ 386
K
Key Fob Programming Additional Key Fobs
.............. 20Key Fob Battery Service (Remote Keyless
Entry)............................................................... 18Key Fob Programming (Remote Keyless
Entry)............................................................... 20Keyless Enter-N-Go................................. 28, 143Passive Entry............................................... 28Keys................................................................. 17
L
Lane Change And Turn Signals........................ 55Lane Change Assist......................................... 55LaneSense.................................................... 199Lap/Shoulder Belts....................................... 336Latches.......................................................... 371Hood........................................................... 84Lead Free Gasoline........................................ 468Leaks, Fluid................................................... 371Life Of Tires................................................... 452Light Bulbs........................................... 371, 437
Lights............................................................ 371Air Bag.................................... 126, 342, 369Brake Assist Warning............................... 314Brake Warning.......................................... 126Bulb Replacement.................................... 437Cargo........................................................... 56Center Mounted Stop............................... 442Courtesy/Reading....................................... 57Cruise....................................................... 136Daytime Running......................................... 53Electronic Stability Program (ESP)Indicator............................................... 128Exterior...............................................52, 371Fog........................................................... 441Hazard Warning Flasher........................... 373Headlights............................................ 52, 54High Beam................................................... 53High Beam/Low Beam Select...................... 53Hill Descent Control Indicator................... 315Illuminated Entry......................................... 58Interior......................................................... 57Lights On Reminder..................................... 55Low Fuel................................................... 131Malfunction Indicator (Check Engine)....... 130Park.......................................................... 135Passing........................................................ 54
Seat Belt Reminder.................................. 126Security Alarm.......................................... 127Service...................................................... 437Traction Control........................................ 314Turn Signals............55, 136, 371, 439, 441Warning Instrument ClusterDescriptions................................ 128, 136Limited-Slip Differential....................... 174, 427Load Shed Battery Saver Mode..................... 125Load Shed Battery Saver On......................... 125Load Shed Electrical Load Reduction........... 125Load Shed Intelligent Battery Sensor............ 125Loading Vehicle............................................. 213Tires.......................................................... 447LocksAutomatic Door............................................30Child Protection...........................................31Power Door..................................................28Low Tire Pressure System............................. 327Lubrication, Body.......................................... 418Lug Nuts........................................................ 467Lug Nuts/Bolts.............................................. 467
M
Maintenance.............................................81, 84Maintenance Free Battery............................ 409Maintenance Schedule............... 395, 399, 40011

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