2020 Ram 4500 Chassis Cab transmission

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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418MULTIMEDIA
Rear ParkSense Chime Volume — If
Equipped Low
Med High
Tilt Side Mirrors In Reverse — If Equipped On
Off
NOTE:
When the “Tilt Side Mirrors In Reverse” feature is selected, the exterior side-view mirrors tilt downward when the ignition is in the ON/RUN position
and the transmission gear selector is in the REVERSE position. The mirrors move back to their previous position when the transmission is shifted out
of REVERSE. Surround View Camera — If Equipped On
Off
NOTE:
The “Surround View Camera” feature displays a complete 360 degree view of the vehicle's exterior environment while backing up. Surround View Camera Delay — If Equipped On
Off
NOTE:
The “Surround View Camera Delay” setting determines whether or not the screen will display the 360 degree view image with guidelines for up to 10
seconds after the vehicle is shifted out of REVERSE. This delay will be canceled if the vehicle’s speed exceeds 8 mph (13 km/h), the transmission is
shifted into PARK, or the ignition is switched to the OFF position.
Setting Name Selectable Options

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MULTIMEDIA419
Surround View Camera Guidelines
— If Equipped On
Off
NOTE:
The “Surround View Camera Guidelines” feature allows you to see active guidelines over the Surround View camera display whenever the gear
selector is put into REVERSE or the Surround View button on the touchscreen is pressed. The image will be displayed on the radio touchscreen display. ParkView Backup Camera Active Guidelines On
Off
NOTE:
Your vehicle may be equipped with the ParkView Backup Camera Active Guidelines that allow you to see active guidelines over the ParkView Backup
camera display whenever the gear selector is put into REVERSE. The image will be displayed on the radio touchscreen display along with a caution
note to “check entire surroundings” across the top of the screen. After five seconds, this note disappears. ParkView Backup Camera Delay On Off
NOTE:
When the vehicle is shifted out of REVERSE (with camera delay turned Off), the rear camera mode is exited and the navigation or audio screen appears
again. When the vehicle is shifted out of REVERSE (with camera delay turned On), the rear view image with dynamic grid lines will be displayed for up
to 10 seconds after shifting out of REVERSE unless the forward vehicle speed exceeds 8 mph (12 km/h), the transmission is shifted into PARK or the
ignition is switched to the Off position.
Setting Name Selectable Options
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MULTIMEDIA423
Doors & Locks
After pressing the Doors & Locks button on the touchscreen, the following settings will be available:
Setting Name Selectable Options
Auto Door Locks — If EquippedOn Off
NOTE:
When the “Auto Door Locks” feature is selected, all doors lock automatically when the vehicle reaches a speed of 15 mph (24 km/h). Auto Unlock On Exit On Off
NOTE:
When the “Auto Unlock On Exit” feature is selected, all doors unlock when the vehicle is stopped, the transmission is in the PARK or NEUTRAL position
and the driver's door is opened. Sound Horn With Lock Off1st Press 2nd Press
Remote Door Unlock All Driver
NOTE:
The “Remote Door Unlock” feature allows you to program your remote door locks to open “All doors” or only the “Driver door” with the first push of
the key fob or grabbing the Passive Entry door handle. Sound Horn With Remote Start On Off
NOTE:
When the “Sound Horn With Remote Start” feature is selected, the horn sounds when the remote start is activated. Memory Linked To Fob — If Equipped On
Off
NOTE:
The “Memory Linked To Fob” feature provides automatic driver seat positioning to enhance driver mobility when entering and exiting the vehicle.
The seat returns to the memorized seat location if “Memory Linked To Fob” is set to “On” when the key fob is used to unlock the door.
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434MULTIMEDIA
Camera
After pressing the Camera button on the touchscreen, the following settings will be available:
Setting Name Selectable Options
Surround View Camera — If Equipped OnOff
NOTE:
The “Surround View Camera” feature displays a complete 360 degree view of the vehicle's exterior environment while backing up. Surround View Camera Delay — If Equipped OnOff
NOTE:
The “Surround View Camera Delay” setting determines whether or not the screen will display the 360 degree view image with guidelines for up to 10
seconds after the vehicle is shifted out of REVERSE. This delay will be canceled if the vehicle’s speed exceeds 8 mph (13 km/h), the transmission is
shifted into PARK, or the ignition is switched to the OFF position.
Surround View Camera Guidelines — If Equipped OnOff
NOTE:
The “Surround View Camera Guidelines” feature allows you to see active guidelines over the Surround View camera display whenever the gear
selector is put into REVERSE or the Surround View button on the touchscreen is pressed. The image will be displayed on the radio touchscreen display. Parkview Backup Camera Delay — If Equipped OnOff
NOTE:
The “ParkView Backup Camera Delay” setting determines whether or not the screen will display the rear view image with dynamic grid lines for up to
10 seconds after the vehicle is shifted out of REVERSE. This delay will be canceled if the vehicle’s speed exceeds 8 mph (13 km/h), the transmission
is shifted into PARK, or the ignition is switched to the OFF position.
Active Backup Camera Guidelines — If Equipped OnOff
NOTE:
The “Active Backup Camera Guidelines” feature overlays the Rear Backup Camera image with active, or dynamic, grid lines to help illustrate the width
of the vehicle and its projected backup path, based on the steering wheel position when the option is checked. A dashed center line overlay indicates
the center of the vehicle to assist with parking or aligning to a hitch/receiver.

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436MULTIMEDIA
Mirrors & Wipers
After pressing the Mirrors & Wipers button on the touchscreen, the following settings will be available:Forward Collision Warning
Sensitivity — If Equipped Near
Med Far
NOTE:
Sets the distance in which a Forward Collision Warning occurs. Front ParkSense Volume LowMed High
Rear ParkSense Volume LowMed High
Power Side Steps — If Equipped Auto Store
Blind Spot Alert OffLightsLights & Chime
Hill Start Assist — If Equipped On Off
Tire Fill Assist — If Equipped On Off
Setting Name Selectable Options
Setting NameSelectable Options
Tilt Side Mirrors In Reverse — If Equipped OnOff
NOTE:
When the “Tilt Side Mirrors In Reverse” feature is selected, the outside side-view mirrors will tilt downward when the ignition is in the ON/RUN position
and the transmission gear selector is in the REVERSE position. The mirrors will move back to their previous position when the transmission is shifted
out of REVERSE. Rain Sensing Auto Wipers — If Equipped OnOff
NOTE:
Automatically adjusts the wiper speed based on the amount of precipitation. Headlights with Wipers OnOff

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