2020 Ram 3500 brake

SERVICING AND MAINTENANCE423
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 transmission sump
temperature in the instrument cluster screen
refer to “Instrument Cluster Display” in “Getting
To Know Your Instrument Panel” for further
information.
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 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.
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
refer to "Fluids And Lubricants" in
“Technical Specifications” for fluid specifi -
cations. 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 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 transmission service or fluid
change. Re-check the fluid level, and adjust as
required, once the transmission reaches
normal operating temperature.
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.
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424SERVICING AND MAINTENANCE
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 transmission service or fluid
change. Re-check the fluid level, and adjust as
required, once the transmission reaches
normal operating temperature.
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
A
XLE FLUID LEVEL
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. If gear oil
leakage is suspected inspect the fluid level. Refer to “Fluids And Lubricants” in “Technical
Specifications” for further information. This
inspection should be made with the vehicle in a
level position.
For all 2500/3500 Model axles, the fluid level
should be 1/4 in ± 1/4 in (6.4 mm ± 6.4 mm)
below the fill hole on the 9.25 in front, 11.5 in
rear axle, and 12.0 in rear axle.
Drain And Refill
Refer to the “Maintenance Plan” for the proper
maintenance intervals.
Lubricant Selection
Refer to “Fluids And Lubricants” in “Technical
Specifications” for further information.
NOTE:
The presence of water in the gear lubricant will
result in corrosion and possible failure of differ -
ential components. Operation of the vehicle in
water, as may be encountered in some
off-highway types of service, will require
draining and refilling the axle to avoid damage.
Limited-Slip Differentials DO REQUIRE limited
slip oil additive (friction modifiers).
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.

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SERVICING AND MAINTENANCE443
Your wheels are susceptible to deterioration
caused by salt, sodium chloride, magnesium
chloride, calcium chloride, etc., and other road
chemicals used to melt ice or control dust on
dirt roads. Use a soft cloth or sponge and mild
soap to wipe away promptly. Do not use harsh
chemicals or a stiff brush. They can damage the
wheel’s protective coating that helps keep them
from corroding and tarnishing.
When cleaning extremely dirty wheels including
excessive brake dust, care must be taken in the
selection of tire and wheel cleaning chemicals
and equipment to prevent damage to the
wheels. Mopar Wheel Treatment or Mopar Chrome Cleaner or their equivalent is
recommended or select a non-abrasive,
non-acidic cleaner for aluminum or chrome
wheels.
NOTE:
If you intend parking or storing your vehicle for
an extended period after cleaning the wheels
with wheel cleaner, drive your vehicle and apply
the brakes to remove the water droplets from
the brake components. This activity will remove
the red rust on the brake rotors and prevent
vehicle vibration when braking.
Dark Vapor Chrome, Black Satin Chrome, or
Low Gloss Clear Coat Wheels
TIRE CHAINS AND TRACTION DEVICES
Use of traction devices require sufficient
tire-to-body clearance. Due to limited clearance,
the following traction devices are
recommended. Follow these recommendations
to guard against damage.
Traction device must be of proper size for the
tire, as recommended by the traction device
manufacturer.
No other tire sizes are recommended for use
with a tire chain or traction device.
CAUTION!
Avoid products or automatic car washes that
use acidic solutions or strong alkaline
additives or harsh brushes. Many aftermarket
wheel cleaners and automatic car washes
may damage the wheel's protective finish.
Such damage is not covered by the New
Vehicle Limited Warranty. Only car wash soap,
Mopar Wheel Cleaner or equivalent is
recommended.
CAUTION!
Do not use scouring pads, steel wool, a bristle
brush, metal polishes or oven cleaner. These
products may damage the wheel's protective
finish. Such damage is not covered by the
New Vehicle Limited Warranty. Only car wash
soap, Mopar Wheel Cleaner or equivalent is
recommended.
CAUTION!
If your vehicle is equipped with these
specialty wheels, DO NOT USE wheel
cleaners, abrasives, or polishing compounds.
They will permanently damage this finish and
such damage is not covered by the New
Vehicle Limited Warranty. HAND WASH ONLY
USING MILD SOAP AND WATER WITH A SOFT
CLOTH. Used on a regular basis; this is all that
is required to maintain this finish.
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452
TECHNICAL SPECIFICATIONS
IDENTIFICATION DATA
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 activation of the “Brake Warning
Light” and/or the “ABS Warning Light” during
brake use.
HYDRAULIC BRAKE ASSIST — IF
E
QUIPPED
The brake system power assist is provided by a
hydro-boost unit which shares fluid with the
power steering system. You may experience
some clicking or hissing noises from the
hydro-boost system during hard braking
conditions.
NOTE:
Under cold temperatures, pedal effort will be
higher than normal until the power steering fluid
reaches operating temperature.
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 high quality 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
SizeLug Nut/
Bolt
Socket
Size
130
Ft-Lbs
(176 N·m) Cone
M14 x
1.5022 mm
140
Ft-Lbs
(190 N·m) Flanged

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TECHNICAL SPECIFICATIONS463
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.
Transfer Case We recommend you use Mopar Transfer Case Lubricant for Borg Warner
44-44 and 44-45.
Front and Rear Axle We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle
Lubricant in 9.25 Front, 11.5 and 12.0 (Single Rear Wheel) Rear Axles.
Use Mopar GL-5 Synthetic Gear Lubricant SAE 75W-140 in 12.0 (Dual
Rear Wheel) Rear axles. Limited slip additive is required for limited slip
axles.
Brake Master Cylinder We recommend you use Mopar DOT 3.
Power Steering Reservoir We recommend you use Mopar Power Steering Fluid +4 or Mopar ATF+4
Automatic Transmission Fluid.
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466TECHNICAL SPECIFICATIONS
CHASSIS
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission – 6.7L Diesel with 68RFE Only use ATF+4 Automatic Transmission Fluid. Failure to use ATF+4 fluid
may affect the function or performance of your transmission. We
recommend Mopar ATF+4 fluid.
Automatic Transmission – 6.7L Diesel with AISIN (AS69RC) 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 (2500/3500) We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle
Lubricant in 9.25 Front, 11.5 and 12.0 (Single Rear Wheel) Rear Axles.
Use Mopar GL-5 Synthetic Gear Lubricant SAE 75W-140 in 12.0 (Dual
Rear Wheel) Rear axles. Limited slip additive is required for limited slip
axles.
Brake Master Cylinder We recommend you use Mopar DOT 3.

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468MULTIMEDIA
Privacy of any wireless and wired
communications cannot be assured. Third
parties may unlawfully intercept information
and private communications without your
consent. For further information, refer to “Data
Collection & Privacy” in your Uconnect Owner’s
Manual Supplement or “Onboard Diagnostic
System (OBD II) Cybersecurity” in “Getting To
Know Your Instrument Panel”.
UCONNECT SETTINGS
The Uconnect system uses a combination of
buttons on the touchscreen and buttons on the
faceplate located on the center of the
instrument panel. These buttons allow you to
access and change the customer
programmable features. Many features can
vary by vehicle.
Buttons on the faceplate are located below
and/or beside the Uconnect system in the
center of the instrument panel. In addition,
there is a Scroll/Enter control knob located on
the right side. Turn the control knob to scroll
through menus and change settings. Push the
center of the control knob one or more times to
select or change a setting. Your Uconnect system may also have Screen
Off and Mute buttons on the faceplate.
Push the Screen Off button on the faceplate to
turn off the Uconnect screen. Push the button
again or tap the screen to turn the screen on.
Push the Back Arrow button to exit out of a
Menu or certain option on the Uconnect system.
UCONNECT 3 SETTINGS

Uconnect 3 With 5-inch Display Buttons On The
Touchscreen And Buttons On The Faceplate
Push the SETTINGS button, then press the
Settings button on the touchscreen (if equipped)
to display the settings menu screen. In this mode the Uconnect system allows you to access
programmable features that may be equipped
such as Display, Units, Voice, Clock, Safety &
Driving Assistance, Lights, Doors & Locks, Power
Side Steps, Auto-On Comfort (if equipped),
Engine Off Options, Suspension, Trailer Brake,
Audio, Phone/Bluetooth®, SiriusXM® Setup (if
equipped), Restore Settings, Clear Personal
Data, and System Information.

NOTE:
Only one category may be selected at a time.
When making a selection, press the button on
the touchscreen to enter the desired menu.
Once in the desired menu, press and release
the preferred setting until the button is
highlighted. Once the setting is complete, either
press the Back Arrow or the Done button on the
touchscreen or push the Back button on the
faceplate to return to the previous menu.
Pressing the Up or Down Arrow buttons on the
touchscreen on the right side of the screen will
allow you to toggle up or down through the list
of available settings.
NOTE:
All settings should be changed with the ignition
in the ON/RUN position.
1 — Uconnect Buttons On The Touchscreen
2 — Uconnect Buttons On The Faceplate

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480MULTIMEDIA
Trailer Brake — If Equipped
After pressing the Trailer Brake button on the touchscreen, the following settings will be available:
Audio
After pressing the Audio button on the touchscreen, the following settings will be available:
Setting Name Selectable Options
Trailer SelectTrailer 1Trailer 2Trailer 3Trailer 4
Trailer Brake Type Light ElectricHeavy Electric Light EOHHeavy EOH
Trailer Name List of Trailer Names Available
NOTE:
You can select and personalize your trailer name depending on the type of trailer you are hauling. Select the trailer name from the following list: trailer,
boat, car, cargo, dump, equipment, flatbed, gooseneck, horse, livestock, motorcycle, snowmobile, travel, utility, and 5th wheel.
Setting Name Selectable Options
Balance/FadeFrontBack LeftRight
NOTE:
The “Balance/Fade” feature allows you to adjust the Balance and Fade settings. Press and drag the Speaker icon or use the arrows to adjust, tap the
C icon to readjust to the center. Equalizer + –
NOTE:
When in the “Equalizer” display you may adjust the Bass, Mid and Treble settings. Speed Adjusted Volume Off123
NOTE:
The “Speed Adjusted Volume” feature increases or decreases volume relative to vehicle speed.

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