transmission fluid RAM CHASSIS CAB 2023 User Guide

STARTING AND OPERATING195
(Continued)
RECREATIONAL TOWING — TWO-WHEEL
D
RIVE MODELS
DO NOT flat tow this vehicle. Damage to the
drivetrain will result.
Recreational towing (for two-wheel drive models) is
allowed ONLY if the rear wheels are OFF the
ground. This may be accomplished using a tow
dolly or vehicle trailer. If using a tow dolly, follow
this procedure:

1. Properly secure the dolly to the tow vehicle, following the dolly manufacturer's
instructions.

2. Drive the rear wheels onto the tow dolly.
3. Firmly apply the parking brake. Place automatic transmission in PARK.
4. Properly secure the rear wheels to the dolly, following the dolly manufacturer's instructions.
5. Turn the ignition to the OFF position and remove the key fob.
6. Install a suitable clamping device, designed for towing, to secure the front wheels in the
straight position.
RECREATIONAL TOWING —
F
OUR-WHEEL DRIVE MODELS
NOTE:Both the manual shift and electronically shifted
transfer cases must be shifted into N (Neutral) for
recreational towing. Automatic transmissions must
be shifted into PARK for recreational towing. Refer
to the following for the proper transfer case N
(Neutral) shifting procedure for your vehicle.
CAUTION!
Towing with the rear wheels on the ground will
cause severe transmission damage. Damage
from improper towing is not covered under the
New Vehicle Limited Warranty.
Do not disconnect the driveshaft because
fluid may leak from the transmission, causing
damage to internal parts.
CAUTION!
DO NOT dolly tow any four-wheel drive vehicle.
Towing with only one set of wheels on the
ground (front or rear) will cause severe trans -
mission and/or transfer case damage. Tow
with all four wheels either ON the ground, or
OFF the ground (using a vehicle trailer).
Tow only in the forward direction. Towing this
vehicle backwards can cause severe damage
to the transfer case.
Before recreational towing, the transfer case
must be in N (Neutral). To be certain the
transfer case is fully in N (Neutral), perform
the procedure outlined under “Shifting Into N
(Neutral)”. Internal transmission damage will
result, if the transfer case is not in N (Neutral)
during towing.
The transmission must be placed in PARK for
recreational towing.
Towing this vehicle in violation of the above
requirements can cause severe transmission
and/or transfer case damage. Damage from
improper towing is not covered under the New
Vehicle Limited Warranty.
Do not disconnect the rear driveshaft because
fluid will leak from the transfer case, causing
damage to internal parts.
Do not use a bumper-mounted clamp-on tow
bar on your vehicle. The bumper face bar will
be damaged.
CAUTION!
4

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198STARTING AND OPERATING
(Continued)
DRIVING THROUGH WATER
Driving through water more than a few inches/
centimeters deep will require extra caution to
ensure safety and prevent damage to your vehicle.
Flowing/Rising WaterShallow Standing Water
Although your vehicle is capable of driving through
shallow standing water, consider the following
Warnings and Cautions before doing so.WARNING!
Rapid acceleration on slippery surfaces is
dangerous. Unequal traction can cause sudden
pulling of the rear wheels. You could lose control
of the vehicle and possibly have a collision.
Accelerate slowly and carefully whenever there
is likely to be poor traction (ice, snow, wet, mud,
loose sand, etc.).
WARNING!
Do not drive on or across a road or path where
water is flowing and/or rising (as in storm
run-off). Flowing water can wear away the road
or path's surface and cause your vehicle to sink
into deeper water. Furthermore, flowing and/or
rising water can carry your vehicle away swiftly.
Failure to follow this warning may result in
injuries that are serious or fatal to you, your
passengers, and others around you.
WARNING!
Driving through standing water limits your
vehicle’s traction capabilities. Do not exceed
5 mph (8 km/h) when driving through
standing water.
Driving through standing water limits your
vehicle’s braking capabilities, which increases
stopping distances. Therefore, after driving
through standing water, drive slowly and
lightly press on the brake pedal several times
to dry the brakes.
Failure to follow these warnings may result in
injuries that are serious or fatal to you, your
passengers, and others around you.
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 compo -
nents. 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.
CAUTION!

23_DPF_OM_EN_USC_t.book Page 198

SERVICING AND MAINTENANCE345
Replace spark plugs.
1X
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
(AS66RCTransmission Only). X
X X
Inspect the transfer case fluid, change for
any of the following: police, taxi, fleet, or
frequent trailer towing. 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
150,000
Or 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
WARNING!
You can be badly injured working on or around a motor vehicle. Do only service work for which you have the knowledge and the right equipment. If you have
any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.
Failure to properly inspect and maintain your vehicle could result in a component malfunction and affect vehicle handling and performance. This could
cause an accident.
8

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348SERVICING AND MAINTENANCE
Inspect the front and rear axle
surfaces. If gear oil leakage is
suspected, check the fluid level. If
using your vehicle for police, taxi,
fleet, off-road or frequent trailer
towing change the axle fluid. X
XXXXX
Inspect the transfer case fluid
(4x4), change for any of the
following: police, taxi, fleet, or
frequent trailer towing. X
XXX X
Change the transfer case fluid
(4x4). X
X
Change automatic transmission
fluid (AS69RC transmission only). X
XXX
Change automatic transmission
fluid and sump filter (AS69RC
transmission only). X
X
Change automatic transmission
fluid and filter(s). X
Mileage Or Time Passed
(Whichever Comes First):
7,500
15,000
22,500
30,000
37,500
45,000
52,500
60,000
67,500
75,000
82,500
90,000
97,500
105,000
112,500
120,000
127,500
135,000
142,500
150,000
Or Months: 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120
Or Kilometers:
12,000
24,000
36,000
48,000
60,000
72,000
84,000
96,000
108,000
120,000
132,000
144,000
156,000
168,000
180,000
192,000
204,000
216,000
228,000
240,000

23_DPF_OM_EN_USC_t.book Page 348

SERVICING AND MAINTENANCE351
6.7L DIESEL ENGINE
1 — Battery 7 — Brake Fluid Reservoir Cap
2 — Engine Coolant Pressure Cap 8 — Battery
3 — Engine Coolant Pressure Reservoir 9 — Power Distribution Center (Fuses)
4 — Engine Oil Fill 10 — Engine Air Cleaner Filter
5 — Engine Oil Dipstick 11 — Power Steering Reservoir Cap
6 — Automatic Transmission Dipstick 12 — Washer Fluid Reservoir Cap
8

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372SERVICING AND MAINTENANCE
AUTOMATIC TRANSMISSION
Special Additives
The manufacturer strongly recommends against
using any special additives in the transmission.
Automatic Transmission Fluid (ATF) is an
engineered product and its performance may be
impaired by supplemental additives. Therefore, do
not add any fluid additives to the transmission. The
only exception to this policy is the use of special
dyes for diagnosing fluid leaks in 6-speed
transmissions. Avoid using transmission sealers as
they may adversely affect seals.
Fluid Level Check — 8-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 transmission 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 — 6-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 transmission sump temperature in the
instrument cluster screen Ú page 89.
Use the following procedure to check the
transmission fluid level properly:

1. Monitor the transmission temperature using the instrument cluster display, and operate
the vehicle as required to reach the normal
operating temperature. If the transmission is
not functioning properly, or the vehicle cannot be driven, see the following Note and Caution
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.
5. Place the gear selector momentarily into each gear position (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
specified fluid Ú page 421. After adding any
quantity of oil through the dipstick tube, wait a
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.

23_DPF_OM_EN_USC_t.book Page 372

SERVICING AND MAINTENANCE373
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 operating 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 trans -
mission 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 operating 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 trans -
mission service or fluid change. Re-check the fluid
level, and adjust as required, once the trans -
mission reaches normal operating temperature.
Fluid And Filter Changes — 8-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 — 6-Speed
Transmission
For the proper maintenance intervals Úpage 344.
In addition, change the fluid and filters if the fluid
becomes contaminated (with water, etc.), or if the
transmission is disassembled for any reason.
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 Ú page 421. 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 lubricant should be used.
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.
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.
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 6-speed
transmissions) will require more frequent fluid
and filter changes Ú page 421.
8

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TECHNICAL SPECIFICATIONS421
CHASSIS FLUIDS AND LUBRICANTS
6.4L GASOLINE ENGINE
6.7L DIESEL ENGINE
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission – 8-SpeedUse 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 – 6-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 using Mopar® Transfer Case Lubricant for Borg Warner 44-44 and 44-45.
Front and Rear Axle Fluid We recommend using SAE 75W-85 HD Ram GL-5 Synthetic Axle Lubricant. Limited slip additive is required
for limited slip axles. If the axle fluid is not pre-mixed with limited slip additive we recommend using
Mopar® MS-10111 Limited Slip Additive.
Brake Master Cylinder We recommend using Mopar® DOT 3 and SAE J1703.
Power Steering Reservoir We recommend using Mopar® Power Steering Fluid +4, Mopar® ATF+4 Automatic Transmission Fluid.
Component Fluid, Lubricant, or Genuine Part
Automatic TransmissionOnly 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 using Mopar® BW44–44 Transfer Case Fluid.
Front and Rear Axle Fluid We recommend using SAE 75W-85 HD Ram GL-5 Synthetic Axle Lubricant. Limited slip additive is required
for limited slip axles. If the axle fluid is not pre-mixed with limited slip additive we recommend using
Mopar® MS-10111 Limited Slip Additive.
Brake Master Cylinder We recommend using Mopar® DOT 3 and SAE J1703.
9

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428
INDEX
A
Adaptive Cruise Control (ACC)
(Cruise Control)
.................................... 148, 150Adding Engine Coolant (Antifreeze)............... 369Adding Fuel.................................................... 177Additives, Fuel............................................... 413AdjustDown........................................................... 33Forward....................................................... 33Rearward..................................................... 33Up................................................................ 33Adjustable Pedals............................................ 38Advance Phone Connectivity......................... 242Air BagAir Bag Operation...................................... 299Air Bag Warning Light................................ 297Enhanced Accident Response......... 302, 341Event Data Recorder (EDR)....................... 341If Deployment Occurs................................ 302Knee Impact Bolsters................................ 299Maintaining Your Air Bag System.............. 303Maintenance............................................. 303Redundant Air Bag Warning Light.............297Transporting Pets...................................... 322
Air Bag Light................................ 103, 297, 322Air Cleaner, Engine
(Engine Air Cleaner Filter).................... 355, 375Air Conditioner Maintenance........................ 357Air Conditioner Refrigerant........................... 357Air Conditioner System................................. 357Air Conditioning................................................ 62Air Conditioning Filter....................................... 65Air Conditioning System................................... 64Air Conditioning, Operating Tips....................... 64Air Filter........................................................ 355Air PressureTires......................................................... 397AlarmPanic........................................................... 16Security Alarm....................................23, 104Alterations/ModificationsVehicle......................................................... 10Antifreeze (Engine Coolant).......................... 368Capacities................................................. 418Disposal................................................... 370Anti-Lock Brake System (ABS)...................... 270Anti-Lock Warning Light................................ 108
Assist, Hill Start............................................. 276Audio Settings............................................... 230Audio Systems (Radio).................................. 199Auto Down Power Windows..............................75Automatic Door Locks......................................27Automatic Folding Mirrors................................44Automatic Headlights.......................................52Automatic Temperature Control (ATC)..............64Automatic Transmission....................... 132, 373Adding Fluid.............................................. 373Fluid And Filter Change............................. 373Fluid Change............................................. 373Fluid Level Check...................................... 372Fluid Type........................................ 373, 421Shifting..................................................... 135Special Additives...................................... 372Automatic Transmission Limp Home Mode... 133AutoPark....................................................... 113AUX Camera......................................... 173, 176Auxiliary Driving Systems.............................. 277Axle Fluid.............................................. 374, 421Axle Lubrication............................................ 374

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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
11

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