transmission fluid RAM CHASSIS CAB 2019 User Guide

STARTING AND OPERATING 365
CAUTION!
• Always check the depth of the standing water before
driving through it. Never drive through standing water
that is deeper than the bottom of the tire rims mounted
on the vehicle.
• Determine the condition of the road or the path that is
under water and if there are any obstacles in the way
before driving through the standing water.
• Do not exceed 5 mph (8 km/h) when driving through
standing water. This will minimize wave effects.
• Driving through standing water may cause damage to
your vehicle’s drivetrain components. Always inspect
your vehicle’s fluids (i.e., engine oil, transmission, axle,
etc.) for signs of contamination (i.e., fluid that is milky
or foamy in appearance) after driving through standing
water. Do not continue to operate the vehicle if any
fluid appears contaminated, as this may result in
further damage. Such damage is not covered by the
New Vehicle Limited Warranty.
• Getting water inside your vehicle’s engine can cause it
to lock up and stall out, and cause serious internal
damage to the engine. Such damage is not covered by
the New Vehicle Limited Warranty. 5

SERVICING AND MAINTENANCE 411
Once A Month Or Before A Long Trip:
• Check engine oil level.
• Check windshield washer fluid level.
• Check the tire inflation pressures and look for unusual
wear or damage. Rotate at the first sign of irregular wear.
• Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering and automatic transmis -
sion (six-speed only), and fill as needed.
• Check function of all interior and exterior lights. Maintenance Plan
Required Maintenance
Refer to the maintenance plan on the following pages for
required maintenance.
At Every Oil Change Interval As Indicated By Oil Change Indicator System:
• Change oil and filter.
• Rotate the tires. Rotate at the first sign of irregular wear, even if it occurs before the oil indicator system turns on.
• Inspect engine cooling system protection and hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or off-road conditions.
• Inspect battery and clean and tighten terminals as required.
• Inspect automatic transmission fluid if equipped with dipstick.
• Inspect brake pads, shoes, rotors, drums, hoses and park brake.
• Inspect front end, and lubricate — If equipped with serviceable fittings. 7

SERVICING AND MAINTENANCE 413
Flush and replace the engine
coolant at 10 years or 150,000 miles
(240,000 km) whichever comes first. X X
Change the automatic transmission
fluid (AS66RC Transmission Only). X X X
Change the automatic transmission
fluid and sump filter (AS66RC
Transmission Only). X X
Inspect the transfer case fluid,
change for any of the following:
police, taxi, fleet, or frequent
trailer towing. X X X X X
Change the transfer case fluid. X
Inspect and replace PCV valve if
necessary. X
1. The spark plug change interval is mileage based only, yearly intervals do not apply. Mileage or time passed
(whichever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000 7

SERVICING AND MAINTENANCE 439
Automatic Transmission
Selection Of Lubricant
It is important to use the proper transmission fluid to ensure
optimum transmission performance and life. Use only the
manufacturer’s specified transmission fluid. Refer to “Fluids
And Lubricants” in “Technical Specifications”. It is
important to maintain the transmission fluid at the correct
level using the recommended fluid. No chemical flushes
should be used in any transmission; only the approved lubri -
cant should be used. Special Additives
The manufacturer strongly recommends against using any
special additives in the transmission. Automatic Transmis -
sion Fluid (ATF) is an engineered product and its perfor -
mance may be impaired by supplemental additives.
Therefore, do not add any fluid additives to the transmis -
sion. The only exception to this policy is the use of special
dyes for diagnosing fluid leaks in six-speed transmissions.
Avoid using transmission sealers as they may adversely
affect seals.• Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts, causing the
brake fluid to catch fire. Brake fluid can also damage
painted and vinyl surfaces, care should be taken to
avoid its contact with these surfaces.
• Do not allow petroleum based fluid to contaminate the
brake fluid. Brake seal components could be damaged,
causing partial or complete brake failure. This could
result in a collision. WARNING! (Continued) CAUTION!
Using a transmission fluid other than the manufacturer’s
recommended fluid may cause deterioration in
transmission shift quality and/or torque converter
shudder, and (for six-speed transmissions) will require
more frequent fluid and filter changes. Refer to “Fluids
And Lubricants” in “Technical Specifications” for fluid
specifications.
7

440 SERVICING AND MAINTENANCE
Fluid Level Check — Eight-Speed Transmission
The fluid level is preset at the factory and does not require
adjustment under normal operating conditions. Routine
fluid level checks are not required, therefore the transmis -
sion has no dipstick. An authorized dealer can check your
transmission fluid level using special service tools.
If you notice fluid leakage or transmission malfunction, visit
an authorized dealer immediately to have the transmission
fluid level checked. Operating the vehicle with an improper
fluid level can cause severe transmission damage. Fluid Level Check — Six-Speed Transmission
It is best to check the fluid level when the transmission is at
normal operating temperature (158-176°F / 70-80°C). This
normally occurs after at least 15 miles (25 km) of driving. At
normal operating temperature the fluid cannot be held
comfortably between the fingertips. You can read the trans -
mission sump temperature in the instrument cluster screen
(refer to “Instrument Cluster Display” for further informa -
tion).
Use the following procedure to check the transmission fluid
level properly:
1. Monitor the transmission temperature using the instru -
ment cluster display, and operate the vehicle as required
to reach the normal operating temperature. If the trans -
mission is not functioning properly, or the vehicle cannot
be driven, see the NOTE and CAUTION below about
checking the fluid level at colder temperatures.
2. Park the vehicle on level ground.
3. Run the engine at normal idle speed for at least 60
seconds, and leave the engine running for the rest of this
procedure.
4. Fully apply the parking brake, and press the brake pedal.CAUTION!
Do not use chemical flushes in your transmission as the
chemicals can damage your transmission components.
Such damage is not covered by the New Vehicle Limited
Warranty.
CAUTION!
If a transmission fluid leak occurs, visit an authorized
dealer immediately. Severe transmission damage may
occur. An authorized dealer has the proper tools to adjust
the fluid level accurately.

SERVICING AND MAINTENANCE 441
5. Place the gear selector momentarily into each gear posi -
tion (allowing time for the transmission to fully engage in
each position), ending with the transmission in PARK.
6. Remove the dipstick, wipe it clean and reinsert it until
seated.
7. Remove the dipstick again and note the fluid level on
both sides. The fluid level reading is only valid if there is
a solid coating of oil on both sides of the dipstick. Note
that the holes in the dipstick will be full of fluid if the
actual level is at or above the hole. The fluid level should
be between the “HOT” (upper) reference holes on the
dipstick at normal operating temperature. If the fluid
level is low, add fluid through the dipstick tube to bring
it to the proper level. Do not overfill. Use ONLY the spec -
ified fluid (see "Fluids And Lubricants" for fluid specifica -
tions). After adding any quantity of oil through the
dipstick tube, wait a minimum of two minutes for the oil
to fully drain into the transmission before rechecking the
fluid level.
NOTE:
If it is necessary to check the transmission below the oper -
ating temperature, the fluid level should be between the two
“COLD” (lower) holes on the dipstick with the fluid at
60-70°F / 16-21°C. Only use the COLD region of the dipstick as a rough reference when setting the fluid level after a trans -
mission service or fluid change. Re-check the fluid level, and
adjust as required, once the transmission reaches normal
operating temperature.
8. Reinsert the dipstick. Check for leaks. Release the parking
brake.
NOTE:
If it is necessary to check the transmission below the oper -
ating temperature, the fluid level should be between the two
COLD (lower) holes on the dipstick with the fluid at 68-86°F
/ 20-30°C. Only use the COLD region of the dipstick as a
rough reference when setting the fluid level after a transmis -
sion service or fluid change. Re-check the fluid level, and
adjust as required, once the transmission reaches normal
operating temperature. 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.
7

442 SERVICING 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 Mainte -
nance” for further information. 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 in ± ¼ in (6.4 mm ± 6.4 mm) below the
bottom of the fill hole.
3500 Rear Axle: ¼ in ± ¼ in (6.4 mm ± 6.4 mm) below the
bottom of the fill hole.
4500/5500 Front Axle: ¼ in +/- ¼ in (6.4 mm ± 6.4 mm)
below the bottom of the fill hole.
4500/5500 Rear Axle: 1/8 in +/- 1/8 in (3.2 mm +/- 3.2 mm)
below the bottom of the fill hole.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.

486 TECHNICAL SPECIFICATIONS
Chassis Component Fluid, Lubricant, or Genuine Part
Automatic Transmission – Eight-Speed Automatic Use only Mopar ZF 8&9 Speed ATF Automatic Transmission
Fluid, or equivalent. Failure to use the correct fluid may
affect the function or performance of your transmission.
Automatic Transmission – Six-Speed Automatic with
Gasoline Engine (For Diesel Engine see Diesel Supplement) 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 (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.

591
Auto Unlock, Doors ................................................................ 269
Automatic Door Locks ............................................................. 37
Automatic Headlights .............................................................. 68
Automatic Temperature Control (ATC) ................................ 89
Automatic Transmission ................................................ 265, 442
Adding Fluid ....................................................................... 442
Fluid And Filter Change .................................................... 442
Fluid Change........................................................................ 442
Fluid Level Check ....................................................... 439, 440
Fluid Type .................................................................... 439, 486
Shifting.................................................................................. 256
Special Additives................................................................. 439
Automatic Transmission Limp Home Mode ...................... 269
Auxiliary Driving Systems .................................................... 174
Axle Fluid................................................................. 442, 443, 486
Axle Lubrication.............................................................. 442, 443
B
Back-Up .................................................................................... 326
Back-Up Camera ..................................................................... 326
Battery............................................................................... 148, 417
Charging System Light....................................................... 148
Keyless Key Fob Replacement ............................................ 19
Battery Saver Feature ............................................................... 71
Belts, Seat ................................................................................. 241
Body Builders Guide ................................................................ 14
Body Mechanism Lubrication ............................................... 428 B-Pillar Location ......................................................................450
Brake Assist System ................................................................163
Brake Control System .............................................................162
Brake Fluid .......................................................................438, 486
Brake System....................................................................438, 476
Fluid Check ..........................................................................438
Master Cylinder ...................................................................438
Parking ..................................................................................252
Warning Light......................................................................146
Brake/Transmission Interlock ..............................................256
Bulb Replacement ...................................................................371
Bulbs, Light ......................................................................243, 371
C
Cab Top Clearance Lights ......................................................379
Camera...................................................................................... 326
Camera, Rear....................................................................326, 330
Capacities, Antifreeze (Engine Coolant) ..............................483
Capacities, Fluid ......................................................................483
Caps, Filler
Oil (Engine) ..................................................................415, 419
Power Steering .....................................................................284
Radiator (Coolant Pressure)...............................................436
Car Washes ..............................................................................471
Carbon Monoxide Warning ...........................................240, 482
Cargo Light ................................................................................71
Cellular Phone .........................................................................555 11

602
Load Capacity .............................................................. 450, 451
Pressure Monitoring System (TPMS) ....................... 152, 177
Quality Grading .................................................................. 468
Radial .................................................................................... 456
Replacement......................................................................... 459
Rotation ................................................................................ 466
Safety............................................................................. 444, 454
Sizes....................................................................................... 446
Snow Tires ............................................................................ 461
Spare Tires .................................................................... 461, 463
Spinning................................................................................ 457
Trailer Towing ..................................................................... 347
Tread Wear Indicators ........................................................ 458
Wheel Nut Torque .............................................................. 476
To Open Hood ........................................................................... 95
Tongue Weight/Trailer Weight ............................................ 345
Torque Converter Clutch ....................................................... 263
Towing.............................................................................. 339, 406
Disabled Vehicle.................................................................. 406
Guide..................................................................................... 345
Recreational.......................................................................... 358
Weight................................................................................... 345
Towing Behind A Motorhome .............................................. 358
Traction..................................................................................... 363
Traction Control ...................................................................... 166
Traction Control Switch ......................................................... 166 Trailer Sway Control (TSC) ................................................... 170
Trailer Towing .........................................................................339
Cooling System Tips ........................................................... 354
Hitches ..................................................................................344
Minimum Requirements ....................................................346
Mirrors ....................................................................................61
Tips ........................................................................................353
Trailer And Tongue Weight...............................................345
Wiring ...................................................................................352
Trailer Towing Guide .............................................................345
Trailer Weight ..........................................................................345
Transfer Case ...........................................................................444
Electronically Shifted ..........................................................272
Fluid ...................................................................................... 486
Transmission ............................................................................265
Automatic .............................................................256, 265, 439
Fluid ...................................................................................... 486
Maintenance .........................................................................439
Shifting ..................................................................................254
Transporting Pets .................................................................... 240
Tread Wear Indicators ............................................................ 458
Turn Signals ...............................................................70, 157, 373
U
Uconnect
Uconnect Settings ................490, 497, 500, 519, 522, 539, 541