transmission fluid RAM CHASSIS CAB 2020 Owner's Manual

370SERVICING AND MAINTENANCE
Fluid And Filter Changes — Eight-Speed
Transmission
Under normal operating conditions, the fluid
installed at the factory will provide satisfactory
lubrication for the life of the vehicle.
Routine fluid and filter changes are not
required. However, change the fluid and filter if
the fluid becomes contaminated (with water,
etc.), or if the transmission is disassembled for
any reason.
Fluid And Filter Changes — Six Speed
Transmission
Refer to the “Maintenance Plan” for the proper
maintenance intervals.
In addition, change the fluid and filters if the
fluid becomes contaminated (with water, etc.),
or if the transmission is disassembled for any
reason.
Rear Axle And 4x4 Front Driving Axle Fluid
Level
For models with 9.25 in Front Axles and 11.5 in
Rear Axles, refer to “Fluids And Lubricants” in
“Servicing And Maintenance” for further infor -
mation. For normal service, periodic fluid level
checks are not required. When the vehicle is
serviced for other reasons, the exterior surfaces
of the axle assembly should be inspected.
When checking the fluid level, the vehicle
should be in a level position. The fluid level at
room temperature should be as follows:
3500 Front Axle: ¼ inch ± ¼ inch
(6.4 mm ± 6.4 mm) below the bottom of the fill
hole.
3500 Rear Axle: ¼ inch ± ¼ inch
(6.4 mm ± 6.4 mm) below the bottom of the fill
hole.
4500/5500 Front Axle: ¼ inch +/- ¼ inch
(6.4 mm ± 6.4 mm) below the bottom of the fill
hole.
4500/5500 Rear Axle: 1/8 inch +/- 1/8 inch
(3.2 mm +/- 3.2 mm) below the bottom of the
fill hole.
Drain And Refill
On 4500/5500 vehicles, remove the lower bolt
to drain the axle fluid.

4500/5500 Rear Axle Plugs

Refer to “Scheduled Servicing” in this chapter
for the proper maintenance intervals.CAUTION!
If the fluid temperature is below 50°F (10°C)
it may not register on the dipstick. Do not add
fluid until the temperature is elevated enough
to produce an accurate reading. Run the
engine at idle, in PARK, to warm the fluid.
1 — 4500/5500 Rear Axle Fluid Fill Plug
2 — 4500/5500 Rear Axle Fluid Drain Plug

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TECHNICAL SPECIFICATIONS409
Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission – Eight-Speed Use only Mopar ZF 8&9 Speed ATF Automatic Transmission Fluid,
orequivalent. Failure to use the correct fluid may affect the function
orperformance of your transmission.
Automatic Transmission – Six-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 you use Mopar Transfer Case Lubricant for Borg Warner
44-44 and 44-45.
Front and Rear Axle Fluid (3500) We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle
Lubricant in 9.25 Front & 11.5 Rear Axles. Use Mopar Synthetic Gear
Lubricant SAE 75W-140 (MS-8985) in 12.0 Rear axles. Limited slip
additive is required for limited slip axles
Front and Rear Axle Fluid (4500/5500) We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle
Lubricant. Limited slip additive is required for limited slip axles
Brake Master Cylinder We recommend you use Mopar DOT 3 and SAE J1703.
Power Steering Reservoir We recommend you use Mopar Power Steering Fluid +4, Mopar ATF+4
Automatic Transmission Fluid.
8

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412TECHNICAL SPECIFICATIONS
Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission Only 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 you use Mopar BW44–44 Transfer Case Fluid.
Front and Rear Axle Fluid (3500) We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle
Lubricant in 9.25 Front & 11.5 Rear Axles. Use Mopar Synthetic Gear
Lubricant SAE 75W-140 (MS-8985) in 12.0 Rear axles. Limited slip
additive is required for limited slip axles.
Front and Rear Axle Fluid (4500/5500) We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle
Lubricant. Limited slip additive is required for limited slip axles.

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INDEX
A
Accessories..........................................413Mopar.............................................413Adaptive Cruise Control (ACC) (Cruise
Control)...............................................232Adding Engine Coolant (Antifreeze)............364Adding Fuel..........................................269Additives, Fuel......................................400AdjustDown................................................31Forward.............................................31Rearward...........................................31Up....................................................31Adjustable Pedals....................................39Air BagAir Bag Operation...............................153Air Bag Warning Light..........................151Enhanced Accident Response.......158, 328Event Data Recorder (EDR)...................328If Deployment Occurs..........................157Knee Impact Bolsters..........................154Maintaining Your Air Bag System............158Maintenance.....................................158Transporting Pets...............................179Air Bag Light......................... 108, 151, 181Air Cleaner, Engine (Engine Air
Cleaner Filter)............................... 349, 371
Air Conditioner Maintenance.................... 351Air Conditioner Refrigerant............... 351, 352Air Conditioner System............................ 351Air Conditioning................................. 52, 62Air Conditioning Filter....................... 64, 352Air Conditioning System............................ 62Air Conditioning, Operating Tips.................. 63Air Filter.............................................. 349Air PressureTires............................................... 383AlarmPanic................................................ 14Security Alarm............................. 24, 110Alterations/ModificationsVehicle.............................................. 11Android Auto........................................ 496Antifreeze (Engine Coolant)...................... 364Capacites......................................... 405Disposal.......................................... 365Anti-Lock Brake System (ABS)................... 120Anti-Lock Warning Light........................... 114Apple CarPlay....................................... 497Assist, Hill Start..................................... 122Audio Systems (Radio)............................ 414Auto Down Power Windows........................ 65Auto Unlock, Doors................................ 216Automatic Door Locks............................... 29
Automatic Headlights............................... 46Automatic Temperature Control (ATC).......... 62Automatic Transmission................. 213, 370Adding Fluid..................................... 370Fluid And Filter Change....................... 370Fluid Change.................................... 370Fluid Level Check.............................. 368Fluid Type........................ 368, 409, 412Shifting........................................... 207Special Additives............................... 368Automatic Transmission Limp Home Mode.. 216AUX Camera................................. 261, 267Auxiliary Driving Systems........................ 129Axle Fluid.....................370, 371, 409, 412Axle Lubrication............................ 370, 371
B
Back-Up.............................................. 258Back-Up Camera................................... 258Battery....................................... 110, 346Blanket........................................... 196Charging System Light........................ 110Keyless Key Fob Replacement................ 14Battery Saver Feature.............................. 48Belts, Seat........................................... 180Body Builders Guide................................ 11Body Mechanism Lubrication................... 360

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505
B-Pillar Location
....................................379Brake Assist System...............................121Brake Control System.............................121Brake Fluid...................................367, 409Brake System............................... 367, 397Fluid Check.......................................367Master Cylinder.................................367Parking............................................204Warning Light....................................109Brake/Transmission Interlock...................206Bulb Replacement.................................300Bulbs, Light.................................. 182, 300
C
Cab Top Clearance Lights........................305Camera...............................................258Camera, AUX................................ 261, 267Camera, Rear............................... 258, 261Capacities, Antifreeze (Engine Coolant).......405Capacities, Fluid....................................405Caps, Filler Oil (Engine)............................... 343, 348Power Steering..................................229Radiator (Coolant Pressure)..................365Car Washes..........................................394Carbon Monoxide Warning............... 180, 401Cargo Light.............................................47Cellular Phone......................................483Center High Mounted Stop Light................304Center Seat Storage Compartment..............73
Changing A Flat Tire............................... 314Charge Air Cooler................................... 366Chart, Tire Sizing................................... 376Check Engine Light (Malfunction Indicator Light)119Checking Your Vehicle For Safety.............. 180Checks, Safety...................................... 180Child Restraint...................................... 160Child RestraintsBooster Seats................................... 164Child Seat Installation................. 172, 174How To Stow An unused ALR Seat Belt.... 171Infant And Child Restraints................... 162Locating The LATCH Anchorages............ 169Lower Anchors And Tethers For Children.. 165Older Children And Child Restraints........ 163Seating Positions............................... 165Clean Air Gasoline................................. 399CleaningWheels............................................ 389Climate Control....................................... 51Automatic.......................................... 55Manual.............................................. 52Cold Weather Operation.......................... 187Compact Spare Tire............................... 387Contract, Service................................... 501Cooling Pressure Cap (Radiator Cap).......... 365Cooling System..................................... 363Adding Coolant (Antifreeze).................. 364Coolant Level............................ 363, 366
Cooling Capacity................................ 405Disposal Of Used Coolant.................... 365Drain, Flush, And Refill........................ 364Inspection........................................ 366Points To Remember.......................... 366Pressure Cap.................................... 365Radiator Cap.................................... 365Selection Of Coolant(Antifreeze)................... 364, 407, 410Corrosion Protection.............................. 393Cruise Control (Speed Control)......... 230, 232Cruise Light......................................... 117Cupholders............................................ 77Customer Assistance............................. 500Cybersecurity....................................... 414
D
Daytime Running Lights............................ 45Dealer Service...................................... 347Defroster, Rear Window............................ 52Defroster, Windshield....................... 52, 181Delay (Intermittent) Wipers........................ 50Diagnostic System, Onboard.................... 118Diesel Exhaust Brake............................. 203Diesel Fuel.......................................... 402Diesel Fuel Requirements....................... 402Bulk Storage Of................................. 269Diesel Fuel System, Re-Priming................ 358Differential, Limited Slip......................... 228
11

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Minimum Requirements
......................279Mirrors..............................................42Tips................................................284Trailer And Tongue Weight....................279Wiring..............................................284Trailer Towing Guide...............................279Trailer Weight.......................................279Transfer Case.......................................371Electronically Shifted...................219, 222Fluid....................................... 409, 412Transmission........................................213Automatic......................... 207, 213, 368Fluid....................................... 409, 412Maintenance.....................................368Shifting............................................205Transporting Pets..................................179Tread Wear Indicators.............................385Turn Signals........................... 47, 117, 301
U
Uconnect Uconnect Settings
....................... 415, 423, 424,438, 440, 458, 459Uconnect PhoneCall Continuation................................480Uconnect SettingsCustomer Programmable Features.. 26, 423, 424, 438, 440, 458, 459
Passive Entry Programming.......... 26, 423, 438, 458Uconnect Voice Command....................... 485Uniform Tire Quality Grades..................... 392Universal Garage Door Opener (HomeLink).... 67Universal Transmitter............................... 67Unleaded Gasoline................................ 399Untwisting Procedure, Seat Belt................ 146USB.................................................... 481
V
Vehicle Identification Number (VIN)............ 397Vehicle Loading............................. 273, 379Vehicle Modifications/Alterations................ 11Vehicle Storage............................... 63, 393Vehicle User GuideIn Vehicle Help.................................... 12Navigation.......................................... 12Operating Instructions........................... 12Searching User Guide........................... 12Viscosity, Engine Oil............................... 348Voice Recognition System (VR)................. 485Voltmeter............................................ 194
W
Warning Lights (Instrument Cluster
Descriptions)
........................................ 112Warnings And Cautions............................. 11Warranty Information............................. 502Washers, Windshield........................ 50, 345
Washing Vehicle................................... 394WaterDriving Through................................. 292Water SeparatorDiesel Fuel....................................... 354Wheel And Wheel Tire Care...................... 389Wheel And Wheel Tire Trim...................... 389Wheel Covers....................................... 318Wind Buffeting........................................ 66Window Fogging...................................... 63Windows............................................... 64Power............................................... 64Rear Sliding....................................... 66Reset Auto-Up..................................... 65Windshield Defroster............................. 181Windshield Washers........................ 50, 345Fluid......................................... 50, 345Windshield Wiper Blades........................ 360Windshield Wipers................................... 50Wipers Blade Replacement..................... 360Wipers, Intermittent................................. 50Wipers, Rain Sensitive.............................. 51Wireless Charging Pad.............................. 81

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