tires RAM 1500 2021 Owner's Manual

SAFETY331
warning limit, upon the next ignition switch
cycle, the Tire Pressure Monitoring System
(TPMS) Warning Light and a “LOW TIRE”
message will remain on and a chime will
sound. In addition, the graphic in the instru -
ment cluster will still display a pressure value
in a different color and an “Inflate to XX”
message.
After driving the vehicle for up to 20 minutes
above 15 mph (24 km/h), the Tire Pressure
Monitoring System (TPMS) Warning Light will
flash on and off for 75 seconds and then
remain on solid. In addition, the instrument
cluster will display a "SERVICE TPMS
SYSTEM" message for a minimum of five
seconds and then display dashes (--) in place
of the pressure value.
For each subsequent ignition switch cycle, a
chime will sound, the Tire Pressure Moni -
toring System (TPMS) Warning Light will flash
on and off for 75 seconds and then remain
on solid, and the instrument cluster will
display a "SERVICE TPMS SYSTEM" message
for a minimum of five seconds and then
display dashes (--) in place of the pressure
value.
Once you repair or replace the original road
tire and reinstall it on the vehicle in place of
the non-matching full size spare or compact
spare, the TPMS will update automatically. In
addition, the Tire Pressure Monitoring
System (TPMS) Warning Light will turn off and
the graphic in the instrument cluster will
display a new pressure value instead of
dashes (--), as long as no tire pressure is
below the low-pressure warning limit in any of
the four active road tires. The vehicle may
need to be driven for up to 20 minutes above
15 mph (24 km/h) in order for the TPMS to
receive this information.
Tire Fill Alert
This feature notifies the user when the placard
tire pressure is attained while inflating or
deflating the tire.
You may choose to disable or enable the Tire Fill
Alert feature through use of the Uconnect
Settings in the radio.
NOTE:
Only one tire can be filled at a time when
using the Tire Fill Alert system.
The Tire Fill Alert feature cannot be entered if
an existing TPMS fault is set to “active” or if
the system is in deactivation mode (if
equipped).
The system will be activated when a positive
increase in tire pressure is detected by the
TPMS while inflating the tire. The ignition must
be in the RUN mode, with the transmission in
PARK.
NOTE:
It is not required to have the engine running to
enter Tire Fill Alert mode.
The hazard lamps will come on to confirm the
vehicle is in Tire Fill Alert mode.
When Tire Fill Alert mode is entered, the tire
pressure display screen will be displayed in the
instrument cluster.
If the hazard lamps do not come on while
inflating the tire, the TPMS sensor may be out of
range preventing the TPMS sensor signal from
being received. In this case, the vehicle may
need to be moved either forward or backward
slightly to exit the null spot.
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332SAFETY
Operation:
The horn will sound once to let the user know
when to stop filling the tire, when it reaches
recommended pressure.
The horn will sound three times if the tire is
overfilled and will continue to sound every
five seconds if the user continues to inflate
the tire.
The horn will sound once again when enough
air is let out to reach proper inflation level.
The horn will also sound three times if the tire
is then underinflated and will continue to
sound every five seconds if the user
continues to deflate the tire.
Trailer Tire Pressure Monitoring System
(TTPMS) — If Equipped
The Trailer Tire Pressure Monitoring System
(TTPMS) is a feature that displays the trailer tire
pressure values and warns the driver of a low
tire pressure event based on the drivers set
target tire pressure value, through TTPMS
settings found in the radio.
The TTPMS monitors the pressure of each tire
and warns the driver through the instrument
cluster, when either a low tire pressure condition falls below 25% of the drivers set
pressure or if a system malfunction occurs. The
instrument cluster will display the actual tire
pressure or dashes for each of the trailer tires in
the correct trailer position, based on trailer
configuration. The TTPMS can support up to
12 trailer tires per configured trailer on up to
four configurable trailers Ú
page 237.

Trailer Tire Pressure Monitoring System

Trailer Tire Pressure Sensor Pairing
In order use this feature, the provided tire
pressure sensors must be installed in the
desired trailer tires and the sensors must be
paired to the truck. If the target trailer requires
more than the provided four sensors, additional
sensors can be purchased at an authorized
Ram dealership. With the sensors installed and the trailer near
or connected to your Ram truck, initiate the
pairing process by entering the settings menu in
the radio and selecting trailer. Select the
desired trailer profile to pair to, open the “Tire
Pressure” menu, and hit “Setup All Tires”
Ú
page 237.
NOTE:
The vehicle may not be driven until the pairing
process is complete.

Trailer Tire Pressure Settings

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SAFETY333

Trailer Tire Pressure Pairing

Follow the on screen prompts to select the
number of axles (1 - 3), the number of trailer
tires (2, 4, 6, 8, or 12), and the set trailer tire
pressure. The range is selectable anywhere
between 25-125 PSI (172-862 kPa).
Once PSI (kPa) is programmed, the pairing
screen appears. Tire sensors must be paired in
order shown. Starting with Tire 1, deflate tire by
5 PSI (34 kPa) and wait for a horn chirp. It may
take up to three minutes for the chirp to occur,
indicating that the sensor has paired. Repeat
process on each tire, in order, until complete.
Do not exit the pairing screen until process is
complete. If pairing was unsuccessful, a double
horn chirp will sound, and a prompt on the
touchscreen will allow you to retry the
procedure; “Retry” will only appear when setup fails. Each tire must be successfully paired
during a single pairing process to receive the
success screen.
NOTE:
If the pairing process times out after three
minutes of no communication with a sensor, a
double horn chip will occur indicating the
pairing has failed and a message will display on
the radio indicating the process was unsuc
-
cessful. Under certain circumstances, the
double horn chirp may continue to happen
every three minutes indicating the failed
pairing. If this happens, the horn chirping may
be canceled by cycling the ignition button OFF
and then back to RUN position.
Tire Pressure Monitoring Low Pressure
Warnings
When a tire pressure low in one or more of the
active road tires is detected, the instrument
cluster will display a message stating “Trailer
Tire Pressure Low”. The instrument cluster will
then display the TTPMS graphic showing the
pressure values of each tire with the low tire
pressure values in a different color.
Should this occur, you should stop as soon as
possible and inflate the tires with a low pressure condition (those in a different color in the
instrument cluster graphic) to the customer
programmed target tire pressure value as
shown at the top of the TTPMS instrument
cluster graphic. Once the tire(s) are inflated, the
system will automatically update the graphic
display in the instrument cluster, returning to its
original color. The vehicle may need to be driven
for up to 10 minutes above 15 mph (24 km/h)
in order for the TTPMS to receive the updated
information.
Service TTPMS Warning
If a system fault is detected, the instrument
cluster will display a “Trailer Tire Pressure
System Service Required” message for a
minimum of five seconds.
Once the system fault is corrected the "Trailer
Tire Pressure System Service Required"
message will no longer be displayed. The
vehicle may need to be driven for up to
10 minutes above 15 mph (24 km/h) in order
for the TTPMS to receive the trailer tire pressure
information.
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SAFETY371
PERIODIC SAFETY CHECKS YOU SHOULD
M
AKE OUTSIDE THE VEHICLE
Tires
Examine tires for excessive tread wear and
uneven wear patterns. Check for stones, nails,
glass, or other objects lodged in the tread or
sidewall. Inspect the tread for cuts and cracks.
Inspect sidewalls for cuts, cracks, and bulges.
Check the lug nut/bolt torque for tightness.
Check the tires (including spare) for proper cold
inflation pressure.
Lights
Have someone observe the operation of brake
lights and exterior lights while you work the
controls. Check turn signal and high beam
indicator lights on the instrument panel.
Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check area under the vehicle after overnight
parking for fuel, coolant, oil, or other fluid leaks.
Also, if gasoline fumes are detected or if fuel or
brake fluid leaks are suspected, the cause
should be located and corrected immediately.
EXHAUST GAS The best protection against carbon monoxide
entry into the vehicle body is a properly
maintained engine exhaust system.
Whenever a change is noticed in the sound of
the exhaust system, when exhaust fumes can
be detected inside the vehicle, or when the
underside or rear of the vehicle is damaged,
have an authorized dealer inspect the complete
exhaust system and adjacent body areas for
broken, damaged, deteriorated, or
mispositioned parts. Open seams or loose
connections could permit exhaust fumes to
seep into the passenger compartment. In
addition, inspect the exhaust system each time
the vehicle is raised for lubrication or oil
change. Replace as required.
WARNING!
Exhaust gases can injure or kill. They contain
carbon monoxide (CO), which is colorless and
odorless. Breathing it can make you
unconscious and can eventually poison you.
To avoid breathing (CO), follow these safety
tips:
Do not run the engine in a closed garage or
in confined areas any longer than needed
to move your vehicle in or out of the area.
If you are required to drive with the trunk/
liftgate/rear doors open, make sure that all
windows are closed and the climate control
BLOWER switch is set at high speed. DO
NOT use the recirculation mode.
If it is necessary to sit in a parked vehicle
with the engine running, adjust your
heating or cooling controls to force outside
air into the vehicle. Set the blower at high
speed.
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IN CASE OF EMERGENCY377
(Continued)
NOTE:
Your vehicle may be transmitting data as
authorized by the subscriber.
Never place anything on or near the vehicle’s
LTE (voice/data) or 4G (data) and GPS
antennas. You could prevent LTE (voice/
data) or 4G (data) and GPS signal reception,
which can prevent your vehicle from placing
an emergency call. An operable LTE (voice/
data) or 4G (data) network connection and a
GPS signal is required for the SOS Call
system to function properly.
NOTE:
Changes or modifications not expressly
approved by the party responsible for compli -
ance could void the user's authority to operate
the equipment.
JACKING AND TIRE CHANGING
NOTE:
If your vehicle is equipped with an air suspen -
sion system, there is a feature which allows the
automatic leveling to be disabled to assist with
changing a tire. This feature can be activated
through the Uconnect system Ú page 249.
PREPARATIONS FOR JACKING
NOTE:
If your vehicle is equipped with Air Suspension,
you will need to enable Tire Jack Mode in the
Uconnect system Úpage 165 before changing
the tire.

1. Park on a firm, level surface. Avoid ice or slippery areas.

2. Turn on the Hazard Warning Flashers.
3. Apply the parking brake.
4. Shift the transmission into Park (P).
5. Turn the ignition OFF.
WARNING!
Do not attempt to change a tire on the side
of the vehicle close to moving traffic. Pull
far enough off the road to avoid the danger
of being hit when operating the jack or
changing the wheel.
Being under a jacked-up vehicle is
dangerous. The vehicle could slip off the
jack and fall on you. You could be crushed.
Never put any part of your body under a
vehicle that is on a jack. If you need to get
under a raised vehicle, take it to a service
center where it can be raised on a lift.
Never start or run the engine while the
vehicle is on a jack.
The jack is designed to be used as a tool for
changing tires only. The jack should not be
used to lift the vehicle for service purposes.
The vehicle should be jacked on a firm level
surface only. Avoid ice or slippery areas.
WARNING! (Continued)
WARNING!
Do not attempt to change a tire on the side of
the vehicle close to moving traffic. Pull far
enough off the road to avoid being hit when
operating the jack or changing the wheel.
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IN CASE OF EMERGENCY381
(Continued)
6. Lift the spare tire with one hand to give clearance to tilt the retainer at the end of
the cable.

Tilting The Retainer Through The Center Of The Wheel

7. Pull the retainer through the center of the wheel.

Pulling The Retainer Through The Center Of The Wheel
NOTE:
The winch mechanism is designed for use with
the extension tubes only. Use of an air wrench
or other power tools is not recommended and
can damage the winch.
JACKING INSTRUCTIONS

Jack Warning Label

WARNING!
Carefully follow these tire changing warnings
to help prevent personal injury or damage to
your vehicle:
Always park on a firm, level surface as far
from the edge of the roadway as possible
before raising the vehicle.
Turn on the Hazard Warning Flashers.
Apply the parking brake firmly and set the
transmission in PARK.
Block the wheel diagonally opposite the
wheel to be raised.
Never start or run the engine with the
vehicle on a jack.
Do not let anyone sit in the vehicle when it
is on a jack.
Do not get under the vehicle when it is on a
jack. If you need to get under a raised
vehicle, take it to a service center where it
can be raised on a lift.
Only use the jack in the positions indicated
and for lifting this vehicle during a tire
change.
If working on or near a roadway, be
extremely careful of motor traffic.
To assure that spare tires, flat or inflated,
are securely stowed, spares must be
stowed with the valve stem facing the
ground.
WARNING!
(Continued)
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IN CASE OF EMERGENCY391
(Continued)
3. Allow the tether to retract with the lever back to its original position.

Manual Park Release Tether

4. Verify the transmission is in PARK.
5. Confirm that the tether has retracted fully and re-install the access cover. If the access
cover cannot be reinstalled, repeat steps 1
through 4.
NOTE:
When the lever is locked in the released posi -
tion the access cover cannot be reinstalled.FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand, or
snow, it can often be moved using a rocking
motion. Turn the steering wheel right and left to
clear the area around the front wheels. Then
shift back and forth between DRIVE (D) and
REVERSE (R), while gently pressing the
accelerator. Use the least amount of
accelerator pedal pressure that will maintain
the rocking motion, without spinning the wheels
or racing the engine.
NOTE:
Shifts between DRIVE and REVERSE can only be
achieved at wheel speeds of 5 mph (8 km/h) or
less. Whenever the transmission remains in
NEUTRAL (N) for more than two seconds, you
must press the brake pedal to engage DRIVE or
REVERSE.
Push the “ESC OFF” switch to place the
Electronic Stability Control (ESC) system in
“Partial OFF” mode, before rocking the vehicle
Ú page 312. Once the vehicle has been freed,
push the “ESC OFF” switch again to restore
“ESC On” mode.
WARNING!
Fast spinning tires can be dangerous. Forces
generated by excessive wheel speeds may
cause damage, or even failure, of the axle
and tires. A tire could explode and injure
someone. Do not spin your vehicle's wheels
faster than 30 mph (48 km/h) or for longer than 30 seconds continuously without
stopping when you are stuck and do not let
anyone near a spinning wheel, no matter
what the speed.
CAUTION!
Racing the engine or spinning the wheels
may lead to transmission overheating and
failure. Allow the engine to idle with the
transmission in NEUTRAL for at least one
minute after every five rocking-motion
cycles. This will minimize overheating and
reduce the risk of transmission failure
during prolonged efforts to free a stuck
vehicle.
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392IN CASE OF EMERGENCY
TOWING A DISABLED VEHICLE
This section describes procedures for towing a
disabled vehicle using a commercial towing
service.
If the transmission and drivetrain are operable,
disabled vehicles may also be towed as
described on Úpage 230. NOTE:
Vehicles equipped with the Active-Level Four
Corner Air Suspension System must be placed
in Transport mode, before tying them down
(from the body) on a trailer or flatbed truck
Ú
page 165. If the vehicle cannot be placed in
Transport mode (for example, engine will not
run), tie-downs must be fastened to the axles
(not to the body). Failure to follow these instruc -
tions may cause fault codes to be set and/or
cause loss of proper tie-down tension.When “rocking” a stuck vehicle by shifting
between DRIVE and REVERSE, do not spin
the wheels faster than 15 mph (24 km/h), or drivetrain damage may result.
Revving the engine or spinning the wheels
too fast may lead to transmission over -
heating and failure. It can also damage the
tires. Do not spin the wheels above 30 mph
(48 km/h) while in gear (no transmission
shifting occurring).
CAUTION! (Continued)
Towing Condition Wheels OFF The
Ground 2WD Models
4WD Models
Flat Tow NONE If transmission is operable:

• Transmission in NEUTRAL
• 30 mph (48 km/h) max speed
• 30 miles (48 km) max distance Detailed instruction on
Ú page 230
• Automatic Transmission in PARK
• Transfer Case in NEUTRAL (N)
• Tow in forward direction
Wheel Lift Or Dolly Tow Front
NOT ALLOWED
Rear OK NOT ALLOWED
Flatbed ALL BEST METHOD BEST METHOD

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395
SERVICING AND MAINTENANCE
SCHEDULED SERVICING — GASOLINE
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, and extremely hot or cold
ambient temperatures will influence when the
“Oil Change Required” message is displayed.
Severe operating conditions can cause the
change oil message to illuminate as early as
3,500 miles (5,600 km) since last reset. 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),
12 months or 350 hours of engine run time,
whichever comes first. The 350 hours of engine
run or idle time is generally only a concern for
fleet customers.
Severe Duty All Models
NOTE:
Vehicles that are operated in a dusty and
off-road environment, or predominately at idle
or very low engine RPM are known as Severe
Duty vehicles. It is recommended that you
change the engine oil at 4,000 miles
(6,500 km) or 350 hours of engine run time.
Once A Month Or Before A Long Trip:
Check engine oil level.
Check windshield washer fluid level.
Check tire pressure and look for unusual
wear or damage. Rotate tires at the first sign
of irregular wear, even if it occurs before the
oil indicator system turns on.
Check the fluid levels of the coolant reservoir,
brake master cylinder, and fill as needed.
Check function of all interior and exterior
lights.
MAINTENANCE PLAN
Refer to the Maintenance Plan for required
maintenance. More frequent maintenance may
be needed in severe conditions, such as dusty
areas and very short trip driving. In some
extreme conditions, additional maintenance
not specified in the maintenance schedule may
be required.
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396SERVICING AND MAINTENANCE
NOTE:
Using white lithium grease, lubricate the door hinge roller pivot joints twice a year to prevent premature wear.
At Every Oil Change Interval As Indicated By Oil Change Indicator System:
Change the 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 the battery and clean and tighten terminals as required.
Inspect the CV/Universal joints.
Inspect the brake pads, shoes, rotors, drums, and hoses.
Inspect the engine cooling system protection and hoses.
Inspect the exhaust system.
Inspect the engine air cleaner if using in dusty or off-road conditions, replace the engine air cleaner, as necessary.
Inspect and replace the Evaporative System Fresh Air Filter as necessary; replacement may be more frequent if vehicle is operated in extreme dusty
conditions.

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