2020 Ram 1500 Service

230 SAFETY
Tire Pressure Monitoring Low Pressure WarningsThe “Tire Pressure Monitoring System (TPMS)
Warning Light” will illuminate in the instrument
cluster and a chime will sound when tire pressure is
low in one or more of the four active road tires. In addition,
the instrument cluster will display a graphic showing the
pressure values of each tire with the low tire pressure values
in a different color. An "Inflate to XX" message will also be
displayed.
Low Tire Pressure Display 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
vehicle’s recommended cold placard pressure inflation value
as shown in the "Inflate to XX" message. Once the system
receives the updated tire pressures, the system will automat
-
ically update, the graphic display in the instrument cluster
will return to it’s original color, and the “Tire Pressure Moni -
toring System Warning Light” will turn off. 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.
NOTE:
When filling warm tires, the tire pressure may need to be
increased up to an additional 4 psi (28 kPa) above the recom -
mended cold placard pressure in order to turn the Tire Pres -
sure Monitoring System Warning Light off.
Service TPMS Warning

If a system fault is detected, the “Tire Pressure Monitoring System
(TPMS) Warning Light” will flash on and off for 75 seconds and
then remain on solid. The system fault will also sound a chime. In
addition, the instrument cluster will display a "SERVICE TPM
SYSTEM" message for a minimum of five seconds and then
display dashes (--) in place of the pressure value to indicate which
sensor is not being received.

2020_DT_1500_OM_US.book Page 230

SAFETY 231
If the ignition switch is cycled, this sequence will repeat,
providing the system fault still exists. If the system fault no
longer exists, the “Tire Pressure Monitoring System Warning
Light” will no longer flash, and the "SERVICE TPM
SYSTEM" message will no longer display, and a pressure
value will display in place of the dashes. A system fault can
occur due to any of the following:
• Signal interference due to electronic devices or drivingnext to facilities emitting the same radio frequencies as the
Tire Pressure Monitor (TPM) sensors
• Installing aftermarket window tinting that contains mate -
rials that may block radio wave signals
• Accumulation of snow or ice around the wheels or wheel housings
• Using tire chains on the vehicle
• Using wheels/tires not equipped with TPM sensors

A system fault may occur due to an incorrect TPM sensor loca -
tion condition. When a system fault occurs due to an incorrect
TPM sensor location, the “Tire Pressure Monitoring System
(TPMS) Warning Light” will flash on and off for 75 seconds
and then remain on solid. The system fault will also sound a
chime. In addition, the instrument cluster will display a “Tire
Pressure Temporarily Unavailable” message in place of the
tire pressure display screen. If the ignition switch is cycled, this sequence will repeat, providing the system fault still
exists. If the system fault no longer exists, the “Tire Pressure
Monitoring System Warning Light” will no longer flash and
the tire pressure display screen will be displayed showing the
tire pressure values the correct locations.

Vehicles With Non Matching Full Size Spare Or Compact
Spare
• The non matching full size spare or compact spare tire
does not have a TPM sensor. Therefore, the TPMS will not
monitor the pressure in the non matching full size spare or
compact spare tire.
• If you install the non matching full size spare or compact spare tire in place of a road tire that has a pressure below
the low-pressure 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
instrument 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
4
2020_DT_1500_OM_US.book Page 231

232 SAFETY
cluster will display a "SERVICE TPM 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 Monitoring 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 TPM 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 rein -
stall it on the vehicle in place of the non matching full size
spare or compact spare, the TPMS will update automati -
cally. 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.
The customer may choose to disable or enable the Tire Fill
Alert feature through use of the customer 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 TPM system 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 TPM system while inflating the
tire. The ignition must be in the RUN mode, with the trans -
mission in PARK (P).
NOTE:
It is not required to have the engine running to enter Tire Fill
Alert mode.
2020_DT_1500_OM_US.book Page 232

SAFETY 235
(Continued)
Important Safety Precautions
Please pay close attention to the information in this section.
It tells you how to use your restraint system properly, to
keep you and your passengers as safe as possible.
Here are some simple steps you can take to minimize the risk
of harm from a deploying air bag:
1. Children 12 years old and under should always ridebuckled up in the rear seat of a vehicle with a rear seat.
2. A child who is not big enough to wear the vehicle seat belt properly (Refer to “Child Restraints” in this section for
further information) must be secured in the appropriate
child restraint or belt-positioning booster seat in a rear
seating position.
3. If a child from 2 to 12 years old (not in a rear-facing child restraint) must ride in the front passenger seat, move the
seat as far back as possible and use the proper child
restraint (Refer to “Child Restraints” in this section for
further information).
4. Never allow children to slide the shoulder belt behind them or under their arm. 5. You should read the instructions provided with your
child restraint to make sure that you are using it properly.
6. All occupants should always wear their lap and shoulder belts properly.
7. The driver and front passenger seats should be moved back as far as practical to allow the front air bags room to
inflate.
8. Do not lean against the door or window. If your vehicle has side air bags, and deployment occurs, the side air
bags will inflate forcefully into the space between occu -
pants and the door and occupants could be injured.
9. If the air bag system in this vehicle needs to be modified to accommodate a disabled person, refer to the
“Customer Assistance” section for customer service
contact information.
WARNING!
• Never place a rear-facing child restraint in front of an air bag. A deploying passenger front air bag can cause
death or serious injury to a child 12 years or younger,
including a child in a rear-facing child restraint.
4
2020_DT_1500_OM_US.book Page 235

SAFETY 245
How To Engage The Automatic Locking Mode
1. Buckle the combination lap and shoulder belt.
2. Grasp the shoulder portion and pull downward until theentire seat belt is extracted.
3. Allow the seat belt to retract. As the seat belt retracts, you will hear a clicking sound. This indicates the seat belt is
now in the Automatic Locking Mode.
How To Disengage The Automatic Locking Mode
Unbuckle the combination lap/shoulder belt and allow it to
retract completely to disengage the Automatic Locking
Mode and activate the vehicle sensitive (emergency) locking
mode.
Supplemental Restraint Systems (SRS)
Some of the safety features described in this section may be
standard equipment on some models, or may be optional
equipment on others. If you are not sure, ask an authorized
dealer.
• Never install a rear-facing child restraint in the front
seat of a vehicle. Only use a rear-facing child restraint
in the rear seat. If the vehicle does not have a rear seat,
do not transport a rear-facing child restraint in that
vehicle.
WARNING! (Continued)WARNING!
• The seat belt assembly must be replaced if the switch -
able Automatic Locking Retractor (ALR) feature or any
other seat belt function is not working properly when
checked according to the procedures in the Service
Manual.
• Failure to replace the seat belt assembly could increase the risk of injury in collisions.
• Do not use the Automatic Locking Mode to restrain occupants who are wearing the seat belt or children
who are using booster seats. The locked mode is only
used to install rear-facing or forward-facing child
restraints that have a harness for restraining the child.
4
2020_DT_1500_OM_US.book Page 245

SAFETY 247
system is designed to be maintenance free, if any of the
following occurs, have an authorized dealer service the air
bag system immediately.
• The Air Bag Warning Light does not come on during thefour to eight seconds when the ignition switch is first in the
ON/RUN position.
• The Air Bag Warning Light remains on after the four to eight-second interval.
• The Air Bag Warning Light comes on intermittently or remains on while driving.
NOTE:
If the speedometer, tachometer, or any engine related gauges
are not working, the Occupant Restraint Controller (ORC)
may also be disabled. In this condition the air bags may not
be ready to inflate for your protection. Have an authorized
dealer service the air bag system immediately. Redundant Air Bag Warning Light
If a fault with the Air Bag Warning Light is detected, which
could affect the Supplemental Restraint System (SRS), the
Redundant Air Bag Warning Light will illuminate on the
instrument panel. The Redundant Air Bag Warning Light
will stay on until the fault is cleared. In addition, a single
chime will sound to alert you that the Redundant Air Bag
Warning Light has come on and a fault has been detected. If
the Redundant Air Bag Warning Light comes on intermit
-
tently or remains on while driving have an authorized dealer
service the vehicle immediately.
For additional information regarding the Redundant Air Bag
Warning Light refer to “Getting To Know Your Instrument
Panel” section of this manual.
Front Air Bags
This vehicle has front air bags and lap/shoulder belts for
both the driver and front passenger. The front air bags are a
supplement to the seat belt restraint systems. The driver
front air bag is mounted in the center of the steering wheel.
The passenger front air bag is mounted in the instrument
panel, above the glove compartment. The words “SRS
AIRBAG” or “AIRBAG” are embossed on the air bag covers.
WARNING!
Ignoring the Air Bag Warning Light in your instrument
panel could mean you won’t have the air bag system to
protect you in a collision. If the light does not come on as
a bulb check when the ignition is first turned on, stays
on after you start the vehicle, or if it comes on as you
drive, have an authorized dealer service the air bag
system immediately.
4
2020_DT_1500_OM_US.book Page 247

256 SAFETY
The Air Bag Warning Light in the instrument panel will
turn on whenever the OCS is unable to classify the front
passenger seat status. A malfunction in the OCS may affect
the operation of the air bag system.
If the Air Bag Warning Light does not come on, or stays
on after you start the vehicle, or it comes on as you drive,
take the vehicle to an authorized dealer for service immedi-
ately.
The passenger seat assembly contains critical OCS compo -
nents that may affect the Passenger Advanced Front Air Bag
inflation. In order for the OCS to properly classify the seated
weight of a front seat passenger, the OCS components must
function as designed. Do not make any modifications to the
front passenger seat components, assembly, or to the seat
cover. If the seat, trim cover, or cushion needs service for any
reason, take the vehicle to an authorized dealer. Only FCA
US LLC approved seat accessories may be used.
The following requirements must be strictly followed:
• Do not modify the front passenger seat assembly or
components in any way.
• Do not use prior or future model year seat covers or cush -
ions not designated by FCA US LLC for the specific model
being repaired. Always use the correct seat cover and
cushion specified for the vehicle.WARNING!
• If a child restraint system, child, small teenager or adult in the front passenger seat is seated improperly, the
occupant may provide an output signal to the OCS that
is different from the occupant’s properly seated weight
input. This may result in serious injury or death in a
collision.
• Always wear your seat belt and sit properly, with the seatback in an upright position, your back against the
seatback, sitting upright, facing forward, in the center
of the seat, with your feet comfortably on or near the
floor.
• Do not carry or hold any objects (e.g., backpacks, boxes, etc.) while seated in the front passenger seat. Holding
an object may provide an output signal to the OCS that
is different than the occupant’s properly seated weight
input, which may result in serious injury or death in a
collision.
• Placing an object on the floor under the front passenger seat may prevent the OCS from working properly,
which may result in serious injury or death in a colli -
sion. Do not place any objects on the floor under the
front passenger seat.
2020_DT_1500_OM_US.book Page 256

SAFETY 257
• Do not replace the seat cover or cushion with an after-
market seat cover or cushion.
• Do not add a secondary seat cover or mat.
• At no time should any Supplemental Restraint System (SRS) component or SRS related component or fastener be
modified or replaced with any part except those which are
approved by FCA US LLC.
Knee Impact Bolsters
The Knee Impact Bolsters help protect the knees of the driver
and front passenger, and position the front occupants for
improved interaction with the front air bags. Supplemental Side Air Bags
Supplemental Seat-Mounted Side Air Bags (SABs)
This vehicle is equipped with Supplemental Seat-Mounted
Side Air Bags (SABs).
Supplemental Seat-Mounted Side Air Bags (SABs) are
located in the outboard side of the front seats. The SABs are
marked with “SRS AIRBAG” or “AIRBAG” on a label or on
the seat trim on the outboard side of the seats.
The SABs may help to reduce the risk of occupant injury
during certain side impacts, in addition to the injury reduc
-
tion potential provided by the seat belts and body structure.
WARNING!
• Unapproved modifications or service procedures to the passenger seat assembly, its related components, seat
cover or cushion may inadvertently change the air bag
deployment in case of a frontal collision. This could
result in death or serious injury to the front passenger
if the vehicle is involved in a collision. A modified
vehicle may not comply with required Federal Motor
Vehicle Safety Standards (FMVSS) and/or Canadian
Motor Vehicle Safety Standards (CMVSS).
• If it is necessary to modify the air bag system for persons with disabilities, contact an authorized dealer.
WARNING!
• Do not drill, cut, or tamper with the knee impact bolsters in any way.
• Do not mount any accessories to the knee impact bolsters such as alarm lights, stereos, citizen band
radios, etc.
4
2020_DT_1500_OM_US.book Page 257