2021 RAM 1500 power steering fluid

5
AUTOMATIC TRANSMISSION .......................... 154 Ignition Park Interlock ...............................155
Brake/Transmission Shift Interlock
System .......................................................155 Eight-Speed Automatic Transmission.......156
FOUR-WHEEL DRIVE OPERATION —
IF EQUIPPED ...................................................... 161
Four-Position Electronically Shifted
Transfer Case — If Equipped ....................161 Five-Position Electronically Shifted
Transfer Case — If Equipped ....................163
ACTIVE-LEVEL FOUR CORNER AIR
SUSPENSION SYSTEM — IF EQUIPPED ........... 165 Description .................................................165
Air Suspension Modes...............................167
Instrument Cluster Display Messages......168Operation....................................................168
ACTIVE-LEVEL FOUR CORNER AIR
SUSPENSION SYSTEM (REBEL MODELS
ONLY) — IF EQUIPPED ....................................... 169 Description .................................................169
Air Suspension Modes...............................171
Instrument Cluster Display Messages......171Operation....................................................172
AXLE LOCK SYSTEM — IF EQUIPPED .............. 173
LIMITED-SLIP DIFFERENTIAL —
IF EQUIPPED ....................................................... 174
POWER STEERING ............................................. 174 Electric Power Steering ............................174 FUEL SAVER TECHNOLOGY 5.7L ENGINES
ONLY — IF EQUIPPED......................................... 175
STOP/START SYSTEM — IF EQUIPPED ............ 175 Autostop Mode........................................... 175
Possible Reasons The Engine Does Not
Autostop ..................................................... 175 To Start The Engine While In Autostop
Mode........................................................... 176 To Manually Turn Off The Stop Start
System ........................................................ 176 To Manually Turn On The Stop Start
System ........................................................ 177 System Malfunction................................... 177
CRUISE CONTROL SYSTEMS —
IF EQUIPPED ...................................................... 177
Cruise Control — If Equipped..................... 177Adaptive Cruise Control (ACC) —
If Equipped ................................................. 179
PARKSENSE FRONT/REAR PARK ASSIST
SYSTEM — IF EQUIPPED ....................................189
ParkSense Sensors ................................... 190
ParkSense Warning Display ...................... 190
ParkSense Display ..................................... 190
Enabling And Disabling Front And/Or
Rear ParkSense ......................................... 193 Service The ParkSense Park Assist
System ........................................................ 193 Cleaning The ParkSense System.............. 194
ParkSense System Usage Precautions .... 194 PARKSENSE ACTIVE PARK ASSIST
SYSTEM — IF EQUIPPED ................................... 195
Enabling And Disabling The ParkSense
Active Park Assist System ......................... 196 Parallel/Perpendicular Parking Space
Assistance Operation ................................ 197
LANESENSE — IF EQUIPPED ........................... 199
LaneSense Operation................................ 199
Turning LaneSense On Or Off ................... 200
LaneSense Warning Message .................. 200Changing LaneSense Status..................... 202
PARKVIEW REAR BACK UP CAMERA ............. 202
AUX Camera — If Equipped ...................... 204
SURROUND VIEW CAMERA SYSTEM — IF
EQUIPPED ........................................................... 204
AUX Camera — If Equipped ...................... 208
REFUELING THE VEHICLE — GASOLINE
ENGINE ................................................................ 208
REFUELING THE VEHICLE — DIESEL
ENGINE ............................................................... 210
Avoid Using Contaminated Fuel ............... 210Bulk Fuel Storage — Diesel Fuel ............... 210Diesel Exhaust Fluid .................................. 211
Diesel Exhaust Fluid Storage .................... 211Adding Diesel Exhaust Fluid ..................... 211

21_DT_OM_EN_USC_t.book Page 5

GETTING TO KNOW YOUR INSTRUMENT PANEL129
Electric Power Steering (EPS) Fault
Warning Light
This warning light will turn on when
there's a fault with the EPS system
Úpage 174.
Tailgate Open Warning Light
This warning light will illuminate when
the tailgate is open.
NOTE:
If the vehicle is moving, there will also be a
single chime.
Trailer Brake Disconnected Warning Light
This warning light will illuminate when
the Trailer Brake has been
disconnected.
Transmission Temperature Warning Light
— If Equipped
This warning light will illuminate to
warn of a high transmission fluid
temperature. This may occur with
strenuous usage such as trailer
towing. If this light turns on, stop the vehicle and
run the engine at idle or slightly faster, with the
transmission in PARK or NEUTRAL, until the
light turns off. Once the light turns off, you may
continue to drive normally.
Door Open Warning Light
This indicator will illuminate when a
door is ajar/open and not fully closed.
NOTE:
If the vehicle is moving there will also be a single
chime.
YELLOW WARNING LIGHTS
Adaptive Cruise Control (ACC) Fault
Warning Light — If Equipped
This warning light will illuminate to
indicate a fault in the ACC system.
Contact an authorized dealer for
service Ú page 179.
Air Suspension Fault Warning Light — If
Equipped
This light will illuminate when a fault is
detected with the air suspension
system.
WARNING!
Continued operation with reduced assist
could pose a safety risk to yourself and
others. Service should be obtained as soon
as possible.
WARNING!
If you continue operating the vehicle when
the Transmission Temperature Warning Light
is illuminated you could cause the fluid to boil
over, come in contact with hot engine or
exhaust components and cause a fire.
CAUTION!
Continuous driving with the Transmission
Temperature Warning Light illuminated will
eventually cause severe transmission
damage or transmission failure.
3

21_DT_OM_EN_USC_t.book Page 129

STARTING AND OPERATING235
OFF-ROAD DRIVING TIPS
Care should be taken when attempting to climb
steep hills or driving diagonally across a hill or
slope. If natural obstacles force you to travel
diagonally up or down a hill, choose a mild angle
and keep as little side tilt as possible. Keep the
vehicle moving and make turns slowly and
cautiously. If you must back down a hill, back straight down
using REVERSE gear. Never back down in
NEUTRAL or diagonally across the hill.
When driving over sand, mud, and other soft
terrain, shift to low gear and drive steadily.
Apply the accelerator slowly to avoid spinning
the wheels.
Do not reduce the tire pressures for this type of
driving.
After Driving Off-Road
Off-road operation puts more stress on your
vehicle than does most on-road driving. After
going off-road, it is always a good idea to check
for damage. That way you can get any problems
taken care of right away and have your vehicle
ready when you need it.
Completely inspect the underbody of your
vehicle. Check tires, body structure, steering,
suspension, and exhaust system for damage.
Inspect the radiator for mud and debris and
clean as required.
Check threaded fasteners for looseness,
particularly on the chassis, drivetrain compo
-
nents, steering, and suspension. Retighten
them, if required, and torque to the values
specified in the Service Manual.
Check for accumulations of plants or brush.
These things could be a fire hazard. They
might hide damage to fuel lines, brake hoses,
axle pinion seals, and propeller shafts.
After extended operation in mud, sand,
water, or similar dirty conditions, have the
radiator, fan, brake rotors, wheels, brake
linings, and axle yokes inspected and
cleaned as soon as possible.
If you experience unusual vibration after
driving in mud, slush or similar conditions,
check the wheels for impacted material.
Impacted material can cause a wheel imbal-
ance and freeing the wheels of it will correct
the situation.
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! (Continued)
WARNING!
Abrasive material in any part of the brakes
may cause excessive wear or unpredictable
braking. You might not have full braking
power when you need it to prevent a collision.
If you have been operating your vehicle in
dirty conditions, get your brakes checked and
cleaned as necessary.
4

21_DT_OM_EN_USC_t.book Page 235

SERVICING AND MAINTENANCE399
SCHEDULED SERVICING — DIESEL ENGINE
Your vehicle is equipped with an automatic oil
change indicator system. The oil change
indicator system will remind you that it is time to
take your vehicle in for scheduled maintenance. Based on engine operation conditions, the oil
change indicator message will illuminate. This
means that service is required for your vehicle.
Operating conditions such as frequent
short-trips, trailer tow, extremely hot or cold
ambient temperatures will influence when the
“Oil Change Required” message is displayed.
Severe Operating Conditions will cause the
change oil message to illuminate more
frequently. Have your vehicle serviced as soon
as possible, within the next 500 miles
(805 km).
An authorized dealer will reset the oil change
indicator message after completing the
scheduled oil change. If a scheduled oil change
is performed by someone other than an
authorized dealer, the message can be reset by
referring to the steps described under
Instrument Cluster Display Ú
page 114.NOTE:
Under no circumstances should oil change
intervals exceed 10,000 miles (16,000 km) or
12 months, whichever comes first.
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
Check the fluid levels of the coolant reservoir,
brake master cylinder, and power steering,
and fill as needed
Check function of all interior and exterior
lights
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 effect vehicle handling
and performance. This could cause an acci
-
dent.
8

21_DT_OM_EN_USC_t.book Page 399

SERVICING AND MAINTENANCE427
Drain And Refill
For the proper maintenance intervals
Úpage 395.
Lubricant Selection
For further information Ú page 478.
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
Rear axles equipped with a Limited Slip
Differential require that 5 oz. (148 ml) Mopar
Limited Slip Additive be added to the gear
lubricant Ú page 478. The Mopar Limited Slip
Additive should be added to the gear lubricant
whenever a fluid change is made to an axle
equipped with a Limited Slip Differential. NOTE:
When refilling a limited slip differential axle
which requires a friction modification additive,
the additive should be added before the gear
lubricant to ensure proper additive fill.TRANSFER CASE
Fluid Level Check
This fluid level can be checked by removing the
filler plug. The fluid level should be to the
bottom edge of the filler plug hole (or within
1/8 inch of the bottom) with the vehicle in a
level position.
Drain And Refill
For the proper maintenance intervals
Ú
page 395.
Selection Of Lubricant
Use only the recommended fluid Ú page 478.
FUSES
General Information
WARNING!
When replacing a blown fuse, always use
an appropriate replacement fuse with the
same amp rating as the original fuse. Never
replace a fuse with another fuse of higher
amp rating. Never replace a blown fuse with
metal wires or any other material. Do not
place a fuse inside a circuit breaker cavity
or vice versa. Failure to use proper fuses
may result in serious personal injury, fire
and/or property damage.
Before replacing a fuse, make sure that the
ignition is off and that all the other services
are switched off and/or disengaged.
If the replaced fuse blows again, contact an
authorized dealer.
If a general protection fuse for safety
systems (air bag system, braking system),
power unit systems (engine system, trans -
mission system) or steering system blows,
contact an authorized dealer.
8

21_DT_OM_EN_USC_t.book Page 427