2023 RAM 1500 ignition

SAFETY269
AUXILIARY DRIVING SYSTEMS
BLIND SPOT MONITORING (BSM) —
I
F EQUIPPED
BSM uses two radar sensors, located inside the taillights,
to detect highway licensable vehicles (automobiles,
trucks, motorcycles, etc.) that enter the blind spot zones
from the rear/front/side of the vehicle.

Rear Detection Zones

When the vehicle is started, the BSM Warning Light will
momentarily illuminate in both outside rearview mirrors to
let the driver know that the system is operational. The
BSM system sensors operate when the vehicle is in any
forward gear and enters standby mode when the vehicle is
in PARK. The BSM detection zone covers approximately one lane
width on both sides of the vehicle 12 ft (3.8 m). The zone
length starts at the outside rearview mirror and extends
approximately 10 ft (3 m) beyond the rear fascia/bumper
of the vehicle. The BSM system monitors the detection
zones on both sides of the vehicle when the vehicle speed
reaches approximately 6 mph (10 km/h) or higher and will
alert the driver of vehicles in these areas.
NOTE:

The BSM system DOES NOT alert the driver about
rapidly approaching vehicles that are outside the
detection zones.
 BSM may experience dropouts (blinking on and off) of
the side mirror warning indicator lights when a motor -
cycle or any small object remains at the side of the
vehicle for extended periods of time (more than a
couple of seconds).
The BSM system can become blocked if snow, ice, mud, or
other road contaminations accumulate on the rear fascia/
bumper where the radar sensors are located. The system
may also detect blockage if the vehicle is operated in
areas with extremely low radar returns such as a desert or
parallel to a large elevation drop. If blockage is detected,
a “Blind Spot Temporarily Unavailable, Wipe Rear
Corners” message will display in the cluster, both mirror
lights will illuminate, and BSM and RCP alerts will not
occur. This is normal operation. The system will
automatically recover and resume function when the
condition clears. To minimize system blockage, do not
block the area of the rear fascia/bumper where the radar
sensors are located with foreign objects (bumper stickers,
bicycle racks, etc.) and keep it clear of road
contaminations.

Radar Sensor Locations

If the system detects degraded performance due to
contamination or foreign objects, a message will warn you
of a blocked sensor and the warning indicators in side
view mirrors will be on. The warning indicators will remain
illuminated until blockage clearing conditions are met.
First clear the taillights around the sensors of the
blockage. After removing the blockage, the following
procedure can be used to reset the system:
Cycle the ignition from ON to OFF and then back ON.
If the blockage message is still present after cycling the
ignition and driving in traffic, check again for a blockage.
The system may also detect a blockage if the vehicle is
operated in areas with extremely low radar returns such as
a desert or parallel to a large elevation drop.
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SAFETY273
Automatic Trailer Detection
There are two modes of operation for the detection of the
trailer length:
Automatic Mode — When “Auto Mode” is selected, the
system will use the blind spot sensors to automatically
determine the presence and length of a trailer. The
presence of a trailer will be detected using the blind
spot radar within 90 seconds of forward movement of
the vehicle. The vehicle must be moving above 6 mph
(10 km/h) to activate the feature. Once the trailer has
been detected, the system will default to the maximum
blind spot zone until the length has been verified. You
will see “Auto” in the instrument panel cluster .
 Maximum Mode — When “Max Mode” is selected, the
system will default to the maximum blind spot zone
regardless of what size trailer is attached .
NOTE:Selected setting is stored when the ignition is placed in the
OFF position. To change this setting, it must be selected
through the Uconnect Settings
Úpage 191.
Trailer Length Detection
Once the trailer presence has been established, the trailer
length will be established (by making a 90 degree turn)
and then the trailer length category (example 10-20 ft
(3 m to 6 m)) will be displayed. This can take up to
30 seconds after completing the turn.
NOTE:During the same ignition cycle, if the vehicle is at a
standstill for a minimum of 90 seconds, a new “trailer
detection request” is enabled by the system once the
vehicle resumes motion.
The maximum trailer length supported by the Trailer
Merge Assist feature is 39.5 ft (12 m). Trailer length is
considered the forward most portion of the trailer hitch to
the rearward most portion of the body, fascia/bumper, or
ramp of the trailer.
The maximum width supported by the Trailer Merge Assist
feature is 8.5 ft (2.59 m). Trailer width is measured at the
widest portion of the trailer and may include wheels, tires,
finders, or rails.
NOTE:Fifth wheel or gooseneck trailers are not supported by
Trailer Merge Assist.
NOTE:The ability to detect a trailer may be degraded in crowded
or busy environments. Busy parking lots, narrow areas
surrounded with trees, or any other crowded area may
prevent the radar sensors from being able to adequately
detect the trailer. The system will try to detect a trailer at
every ignition cycle or 90 seconds of standstill.

Trailer Length Detection

Trailer length will be identified and placed into one of the
following categories:
 Trailer length up to 10 ft (3 m) — Blind spot zone will be
adjusted to 10 ft (3 m) .
 Trailer length between 10 ft to 20 ft
(3 m to 6 m) — Blind spot zone will be adjusted to
20 ft (6 m) .
 Trailer length between 20 ft to 30 ft
(6 m to 9 m) — Blind spot zone will be adjusted to
30 ft (9 m) .
 Trailer length between 30 ft and 39.5 ft
(9 m to 12 m) — Blind spot zone will be adjusted to
Max distance .
1 — Trailer Length
2 — Trailer Hitch
3 — Trailer Width
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SAFETY275
When the system determines a collision with the vehicle in
front of you is no longer probable, the warning message
will be deactivated
Úpage 402.
NOTE:
The minimum speed for FCW activation is 3 mph
(5 km/h).
 The FCW alerts may be triggered on objects other than
vehicles such as guardrails or sign posts based on the
course prediction. This is expected and is a part of
normal FCW activation and functionality.
 It is unsafe to test the FCW system. To prevent such
misuse of the system, after four Active Braking events
within a key cycle, the Active Braking portion of FCW will
be deactivated until the next key cycle.
 The FCW system is intended for on-road use only. If the
vehicle is taken off-road, the FCW system should be
deactivated to prevent unnecessary warnings to the
surroundings.
 FCW may not react to irrelevant objects such as over -
head objects, ground reflections, objects not in the
path of the vehicle, stationary objects that are far away,
oncoming traffic, or leading vehicles with the same or
higher rate of speed.
 FCW will be disabled like ACC, with the unavailable
screens.
Turning FCW On Or Off
The FCW button is located in the Uconnect display in the
control settings Úpage 191.
 To turn the FCW system on, press the forward collision
button once.
 To turn the FCW system off, press the forward collision
button once.
NOTE:
When the FCW is “on”, this allows the system to warn
the driver of a possible collision with the vehicle in
front.
 When the FCW is “off”, this prevents the system from
warning the driver of a possible collision with the
vehicle in front. If the FCW is set to “off”, “FCW OFF” will
be displayed in the instrument cluster display. 
When FCW status is set to “Only Warning”, this
prevents the system from providing limited active
braking, or additional brake support if the driver is not
braking adequately in the event of a potential frontal
collision.
 When FCW status is set to “Warning and Braking”, this
allows the system to warn the driver of a possible colli -
sion with the vehicle in front using audible/visual warn -
ings and it applies autonomous braking.
 The FCW system state is defaulted to “Full On” from
one ignition cycle to the next. If the system is turned off,
it will reset to “Full On” when the vehicle is restarted.
FCW Braking Status And Sensitivity
The FCW Sensitivity and Active Braking status are
programmable through the Uconnect system
Úpage 191.
 Far
 When the sensitivity of FCW is set to the “Far”
setting and the system status is “Only Warning”,
this allows the system to warn the driver of a
possible more distant collision with the vehicle in
front using audible/visual warnings.
 More cautious drivers that do not mind frequent
warnings may prefer this setting.
NOTE:The “Far” setting may result in a greater number of FCW
possible collision warnings experienced.
WARNING!
Forward Collision Warning (FCW) is not intended to
avoid a collision on its own, nor can FCW detect every
type of potential collision. The driver has the
responsibility to avoid a collision by controlling the
vehicle via braking and steering. Failure to follow this
warning could lead to serious injury or death.
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276SAFETY
Medium
 When the sensitivity of FCW is set to the “Medium”
setting and the system status is “Only Warning”,
this allows the system to warn the driver of a
possible collision with the vehicle in front using
audible/visual warnings.
 Near
 When the sensitivity of FCW is set to the “Near”
setting and the system status is “Only Warning”,
this allows the system to warn the driver of a
possible closer collision with the vehicle in front
using audible/visual warnings.
 This setting provides less reaction time than the
“Far” and “Medium” settings, which allows for a
more dynamic driving experience.
 More dynamic or aggressive drivers that want to
avoid frequent warnings may prefer this setting.
NOTE:The “Near” setting may result in a lesser number of FCW
possible collision warnings experienced.
FCW Limited Warning
If the instrument cluster displays “ACC/FCW Limited
Functionality” or “ACC/FCW Limited Functionality Clean
Front Windshield” momentarily, there may be a condition
that limits FCW functionality. Although the vehicle is still
driveable under normal conditions, the active braking may
not be fully available. Once the condition that limited the
system performance is no longer present, the system will
return to its full performance state. If the problem persists,
see an authorized dealer.
Service FCW Warning
If the system turns off, and the instrument cluster
displays:
ACC/FCW Unavailable Service Required
 Cruise/FCW Unavailable Service Required
This indicates there is an internal system fault. Although
the vehicle is still drivable under normal conditions, have
the system checked by an authorized dealer.
Pedestrian Emergency Braking (PEB) —
If Equipped
PEB is a subsystem of the FCW system that provides the
driver with audible and visual warnings in the instrument
cluster display, and may apply automatic braking when it
detects a potential frontal collision with a pedestrian/
cyclist.
If a PEB event begins at a speed below 37 mph (60 km/h),
the system may provide braking to mitigate the potential
collision with a pedestrian/cyclist. If the PEB event stops
the vehicle completely, the system will hold the vehicle at
a standstill for two seconds and then release the brakes.
When the system determines a collision with the
pedestrian/cyclist in front of you is no longer probable, the
warning message will be deactivated.
The minimum speed for PEB activation is 3 mph (5 km/h). Turning PEB On Or Off
NOTE:The default status of PEB is “On.” This allows the system
to warn you of a possible frontal collision with the
pedestrian.
The PEB button is located in the Uconnect display in the
controls settings
Úpage 191.
To turn the PEB system off, push the Pedestrian
Emergency Braking button once.
To turn the PEB system back on, push the Pedestrian
Emergency Braking button again.
Changing the PEB status to “Off” deactivates the system,
so no warning or active braking will be available in case of
a possible frontal collision with the pedestrian.
NOTE:The PEB system will retain the last setting selected by the
driver after ignition shut down.
WARNING!
Pedestrian Emergency Braking (PEB) is not intended to
avoid a collision on its own, nor can PEB detect every
type of potential collision with a pedestrian. The driver
has the responsibility to avoid a collision by controlling
the vehicle via braking and steering. Failure to follow
this warning could lead to serious injury or death.

23_DT_OM_EN_USC_t.book Page 276

SAFETY279
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.
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 driving
next to facilities emitting the same radio frequencies
as the Tire Pressure Monitoring System sensors
 Installing aftermarket window tinting that contains
materials 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 TPMS sensors
A system fault may occur due to an incorrect TPMS sensor
location condition. When a system fault occurs due to an
incorrect TPMS 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 TPMS 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 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
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).
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280SAFETY
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.
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
driver’s 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 driver’s
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
Úpage 191.

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”
Úpage 191.
NOTE:The vehicle may not be driven until the pairing process is
complete.

Trailer Tire Pressure Settings

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SAFETY281

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 indi -
cating 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 System 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.
Trailer Tire Pressure System Not Configured
A “Trailer Tire Pressure System Not Configured” message
will be displayed in the instrument cluster on the TTPMS
instrument cluster graphic when a trailer number is
selected that has not had trailer tire pressure sensors
paired. To correct this condition, see
Úpage 191.
Trailer Sensors Detected Do Not Match Active Trailer
The “Trailer Sensors Detected Do Not Match Active
Trailer” message will be displayed in the instrument
cluster when the trailer sensors being received by the
TTPMS module do not match the trailer sensors paired to
the current trailer number selected. This message will be
displayed when the sensors being received completely
match the sensors paired to another trailer number
configured in the TTPMS module.
To correct this condition, the correct trailer number must
be selected in the radio
Úpage 191.
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SAFETY283
(Continued)
Enhanced Seat Belt Use Reminder System
(BeltAlert)
Driver And Passenger BeltAlert — If Equipped
BeltAlert is a feature intended to remind the
driver and outboard front seat passenger (if
equipped with outboard front passenger seat
BeltAlert) to buckle their seat belts. The
BeltAlert feature is active whenever the ignition switch is
in the START or ON/RUN position.
Initial Indication
If the driver is unbuckled when the ignition switch is first in
the START or ON/RUN position, a chime will signal for a
few seconds. If the driver or outboard front seat passenger
(if equipped with outboard front passenger seat BeltAlert)
is unbuckled when the ignition switch is first in the START
or ON/RUN position the Seat Belt Reminder Light will turn
on and remain on until both outboard front seat belts are
buckled. The outboard front passenger seat BeltAlert is
not active when an outboard front passenger seat is
unoccupied.
BeltAlert Warning Sequence
The BeltAlert warning sequence is activated when the
vehicle is moving above a specified vehicle speed range
and the driver or outboard front seat passenger is
unbuckled (if equipped with outboard front passenger
seat BeltAlert) (the outboard front passenger seat
BeltAlert is not active when the outboard front passenger
seat is unoccupied). The BeltAlert warning sequence
starts by blinking the Seat Belt Reminder Light and
sounding an intermittent chime. Once the BeltAlert
warning sequence has completed, the Seat Belt Reminder
Light will remain on until the seat belts are buckled. The BeltAlert warning sequence may repeat based on
vehicle speed until the driver and occupied outboard front
seat passenger seat belts are buckled. The driver should
instruct all occupants to buckle their seat belts.
Change Of Status
If the driver or outboard front seat passenger
(if equipped with outboard front passenger seat BeltAlert)
unbuckles their seat belt while the vehicle is traveling, the
BeltAlert warning sequence will begin until the seat belts
are buckled again.
The outboard front passenger seat BeltAlert is not active
when the outboard front passenger seat is unoccupied.
BeltAlert may be triggered when an animal or other items
are placed on the outboard front passenger seat or when
the seat is folded flat (if equipped). It is recommended that
pets be restrained in the rear seat (if equipped) in pet
harnesses or pet carriers that are secured by seat belts,
and cargo is properly stowed.
BeltAlert can be activated or deactivated by an authorized
dealer. FCA US LLC does not recommend deactivating
BeltAlert.
NOTE:If BeltAlert has been deactivated and the driver or
outboard front seat passenger (if equipped with outboard
front passenger seat BeltAlert) is unbuckled the Seat Belt
Reminder Light will turn on and remain on until the driver
and outboard front seat passenger seat belts are buckled.
Lap/Shoulder Belts
All seating positions in your vehicle are equipped with lap/
shoulder belts.
The seat belt webbing retractor will lock only during very
sudden stops or collisions. This feature allows the
shoulder part of the seat belt to move freely with you
under normal conditions. However, in a collision the seat
belt will lock and reduce your risk of striking the inside of
the vehicle or being thrown out of the vehicle.
WARNING!

Relying on the air bags alone could lead to more
severe injuries in a collision. The air bags work with
your seat belt to restrain you properly. In some colli -
sions, the air bags won’t deploy at all. Always wear
your seat belt even though you have air bags.
 In a collision, you and your passengers can suffer
much greater injuries if you are not properly buckled
up. You can strike the interior of your vehicle or other
passengers, or you can be thrown out of the vehicle.
Always be sure you and others in your vehicle are
buckled up properly.
 It is dangerous to ride in a cargo area, inside or
outside of a vehicle. In a collision, people riding in
these areas are more likely to be seriously injured
or killed.
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