RAM 1500 (2019 year). Instruction — part 14
The BSM system is designed not to issue an alert on
stationary objects such as guardrails, posts, walls, foliage,
berms, snow banks, car washes etc. However, occasionally
the system may alert on such objects. This is normal
operation and your vehicle does not require service.
Overtaking/Passing
Stationary Objects
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The BSM system will not alert you of objects that are
traveling in the opposite direction of the vehicle in adjacent
lanes.
For information on how Blind Spot Monitoring functions
when pulling a trailer, refer to “Trailer Merge Assist” in this
section.
WARNING!
The Blind Spot Monitoring system is only an aid to
help detect objects in the blind spot zones. The BSM
system is not designed to detect pedestrians, bicyclists,
or animals. Even if your vehicle is equipped with the
BSM system, always check your vehicle’s mirrors,
glance over your shoulder, and use your turn signal
before changing lanes. Failure to do so can result in
serious injury or death.
Opposing Traffic
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Rear Cross Path (RCP)
The Rear Cross Path (RCP) feature is intended to aid the
driver when backing out of parking spaces where their
vision of oncoming vehicles may be blocked. Proceed
slowly and cautiously out of the parking space until the
rear end of the vehicle is exposed. The RCP system will
then have a clear view of the cross traffic and if an
oncoming vehicle is detected, alert the driver.
RCP monitors the rear detection zones on both sides of the
vehicle, for objects that are moving toward the side of the
vehicle with a minimum speed of approximately 3 mph
(5 km/h), to objects moving a maximum of approximately
20 mph (32 km/h), such as in parking lot situations.
NOTE:
In a parking lot situation, oncoming vehicles can be
obscured by vehicles parked on either side. If the sensors
are blocked by other structures or vehicles, the system will
not be able to alert the driver.
When RCP is on and the vehicle is in REVERSE, the driver
is alerted using both the visual and audible alarms, includ-
ing reducing the radio volume.
WARNING!
Rear Cross Path Detection (RCP) is not a back up aid
system. It is intended to be used to help a driver detect
an oncoming vehicle in a parking lot situation. Drivers
must be careful when backing up, even when using
RCP. Always check carefully behind your vehicle, look
behind you, and be sure to check for pedestrians,
animals, other vehicles, obstructions, and blind spots
before backing up. Failure to do so can result in serious
injury or death.
RCP Detection Zones
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Modes Of Operation
Three selectable modes of operation are available in the
Uconnect System.
Refer to “Uconnect Settings” in “Multimedia” for further
information.
Blind Spot Alert Lights Only
When operating in Blind Spot Alert mode, the BSM system
will provide a visual alert in the appropriate side view
mirror based on a detected object. However, when the
system is operating in Rear Cross Path (RCP) mode, the
system will respond with both visual and audible alerts
when a detected object is present. Whenever an audible
alert is requested, the radio is muted.
Blind Spot Alert Lights/Chime
When operating in Blind Spot Alert Lights/Chime mode,
the BSM system will provide a visual alert in the appro-
priate side view mirror based on a detected object. If the
turn signal is then activated, and it corresponds to an alert
present on that side of the vehicle, an audible chime will
also be sounded. Whenever a turn signal and detected
object are present on the same side at the same time, both
the visual and audible alerts will be issued. In addition to
the audible alert the radio (if on) will also be muted.
NOTE:
Whenever an audible alert is requested by the BSM
system, the radio is also muted.
When the system is in RCP, the system shall respond with
both visual and audible alerts when a detected object is
present. Whenever an audible alert is requested, the radio
is also muted. Turn/hazard signal status is ignored; the
RCP state always requests the chime.
Blind Spot Alert Off
When the BSM system is turned off there will be no visual
or audible alerts from either the BSM, RCP, or Trailer Merge
Assist systems.
NOTE:
The BSM system will store the current operating
mode when the vehicle is shut off. Each time the vehicle is
started the previously stored mode will be recalled and
used.
Trailer Merge Assist
NOTE:
When Trailer Merge Assist is activated, Rear Cross
Path is disabled.
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Trailer Merge Assist is a function of the Blind Spot Moni-
toring (BSM) system that extends the blind spot zone to
work while pulling a trailer. Trailer Merge Assist consists of
three sub functions:
• Automatic Trailer Detection
• Trailer Length Detection
• Trailer Merge Warning
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
.
• Max 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
cycled OFF. To change this setting, it must be selected
through the Uconnect Settings. Refer to “Uconnect Set-
tings” in “Multimedia” for further information.
Blind Spot Zones With Trailer Merge Assist
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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.
Maximum 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, bumper, or ramp of the trailer.
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.
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 Detection
1 — Trailer Length
2 — Trailer Width
3 — Trailer Hitch
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• 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
.
NOTE:
Trailer length is determined within +/- 3 feet
(1 meter) of actual length. Trailers that are the same size as
the category limit, 10/20/30 ft (3/6/9 m), could be subject
to being placed in the category above or below the correct
one.
Trailer Merge Warning
Trailer Merge Warning is the extension of the blind spot
function to cover the length of the trailer, plus a safety
margin, to warn the driver when there is a vehicle in the
adjacent lane. The driver is alerted by the illumination of
the BSM warning light located in the outside mirror on the
side the other vehicle is detected. In addition, an audible
(chime) alert will be heard and radio volume reduced.
Refer to “Modes Of Operation” in this section for further
information.
NOTE:
• The Trailer Merge Alert system DOES NOT alert the
driver about rapidly approaching vehicles that are out-
side the detection zones.
• The Blind Spot Monitoring (BSM) system may experi-
ence drop outs (blinking on and off) of the side mirror
warning indicator lamps when a motorcycle or any
small object remains at the side of the vehicle for
extended periods of time (more than a couple of sec-
onds).
• Crowded areas such as parking lots, neighborhoods, etc.
May lead to an increased amount of false alerts. This is
normal operation.
WARNING!
The Blind Spot Monitoring system is only an aid to
help detect objects in the blind spot zones. The BSM
system is not designed to detect pedestrians, bicyclists,
or animals. Even if your vehicle is equipped with the
BSM system, always check your vehicle’s mirrors,
glance over your shoulder, and use your turn signal
before changing lanes. Failure to do so can result in
serious injury or death.
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General Information
The following regulatory statement applies to all Radio
Frequency (RF) devices equipped in this vehicle:
This device complies with Part 15 of the FCC Rules and
with Industry Canada license-exempt RSS standard(s).
Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, in-
cluding interference that may cause undesired opera-
tion.
NOTE:
Changes or modifications not expressly approved
by the party responsible for compliance could void the
user’s authority to operate the equipment.
Forward Collision Warning (FCW) With Mitigation
— If Equipped
The Forward Collision Warning (FCW) system with miti-
gation provides the driver with audible warnings, visual
warnings (within the instrument cluster display), and may
apply a brake jerk to warn the driver when it detects a
potential frontal collision. The warnings and limited brak-
ing are intended to provide the driver with enough time to
react, avoid or mitigate the potential collision.
NOTE:
FCW monitors the information from the forward
looking sensors as well as the Electronic Brake Controller
(EBC), to calculate the probability of a forward collision.
When the system determines that a forward collision is
probable, the driver will be provided with audible and
visual warnings as well as a possible brake jerk warning.
If the driver does not take action based upon these pro-
gressive warnings, then the system will provide a limited
level of active braking to help slow the vehicle and mitigate
the potential forward collision. If the driver reacts to the
warnings by braking and the system determines that the
driver intends to avoid the collision by braking but has not
applied sufficient brake force, the system will compensate
and provide additional brake force as required.
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If a FCW with Mitigation event begins at a speed below
32 mph (52 km/h), the system may provide the maximum
braking possible to mitigate the potential forward collision.
If the Forward Collision Warning with Mitigation event
stops the vehicle completely, the system will hold the
vehicle at standstill for two seconds and then release the
brakes.
When the system determines a collision with the vehicle in
front of you is no longer probable, the warning message
will be deactivated.
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 guard rails 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.
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 respon-
sibility to avoid a collision by controlling the vehicle
via braking and steering. Failure to follow this warn-
ing could lead to serious injury or death.
FCW Message
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FCW Braking Status And Sensitivity
The FCW Sensitivity and Active Braking status are pro-
grammable through the Uconnect System. Refer to
“Uconnect Settings” in “Multimedia” for further informa-
tion.
The default sensitivity of FCW is the “Medium” setting
and the system status is “Warning & Braking”. This allows
the system to warn the driver of a possible collision with
the vehicle in front using audible/visual warnings and it
applies autonomous braking.
Changing the FCW status to “Far” setting allows the
system to warn the driver of a possible collision with the
vehicle in front using audible/visual warning when the
latter is at a farther distance than
⬙Medium⬙ setting. This
provides the most reaction time to avoid a possible colli-
sion.
Changing the FCW status to the “Near” setting, allows the
system to warn the driver of a possible collision with the
vehicle in front when the distance between the vehicle in
the front is much closer. This setting provides less reaction
time than the “Far” and “Medium” settings, which allows
for a more dynamic driving experience.
NOTE:
• Changing the FCW status to “Only Warning” 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,
but maintains the audible and visual warnings.
• Changing the FCW status to “Off” prevents the system
from providing autonomous braking, or additional
brake support if the driver is not braking adequately in
the event of a potential frontal collision.
• The system will retain the last setting selected by the
driver after ignition shut down.
• 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.
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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
drivable 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 your 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.
General Information
The following regulatory statement applies to all Radio
Frequency (RF) devices equipped in this vehicle:
This device complies with Part 15 of the FCC Rules and
with Industry Canada license-exempt RSS standard(s).
Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, in-
cluding interference that may cause undesired opera-
tion.
NOTE:
Changes or modifications not expressly approved
by the party responsible for compliance could void the
user’s authority to operate the equipment.
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Tire Pressure Monitoring System (TPMS)
The Tire Pressure Monitor System (TPMS) will warn the
driver of a low tire pressure based on the vehicle recom-
mended cold placard pressure.
The tire pressure will vary with temperature by about 1 psi
(7 kPa) for every 12°F (6.5°C). This means that when the
outside temperature decreases, the tire pressure will de-
crease. Tire pressure should always be set based on cold
inflation tire pressure. This is defined as the tire pressure
after the vehicle has not been driven for at least three
hours, or driven less than 1 mile (1.6 km) after a three hour
period. The cold tire inflation pressure must not exceed the
maximum inflation pressure molded into the tire sidewall.
Refer to “Tires” in “Servicing And Maintenance” for infor-
mation on how to properly inflate the vehicle’s tires. The
tire pressure will also increase as the vehicle is driven - this
is normal and there should be no adjustment for this
increased pressure.
The TPMS will warn the driver of a low tire pressure if the
tire pressure falls below the low-pressure warning limit for
any reason, including low temperature effects and natural
pressure loss through the tire.
The TPMS will continue to warn the driver of low tire
pressure as long as the condition exists, and will not turn
off until the tire pressure is at or above the recommended
cold placard pressure. Once the low tire pressure warning
(Tire Pressure Monitoring [TPM] Telltale Light) illumi-
nates, you must increase the tire pressure to the recom-
mended cold placard pressure in order for the TPM Telltale
Light to turn off. The system will automatically update and
the TPM Telltale Light will turn off once the system
receives the updated tire pressures. 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
recommended cold placard pressure in order to turn the
Tire Pressure Monitoring Telltale Light off.
For example, your vehicle may have a recommended cold
(parked for more than three hours) placard pressure of 30
psi (207 kPa). If the ambient temperature is 68°F (20°C) and
the measured tire pressure is 27 psi (186 kPa), a tempera-
ture drop to 20°F (-7°C) will decrease the tire pressure to
approximately 23 psi (158 kPa). This tire pressure is suffi-
ciently low enough to turn on the TPM Telltale Light.
Driving the vehicle may cause the tire pressure to rise to
approximately 27 psi (186 kPa), but the TPM Telltale Light
will still be on. In this situation, the TPM Telltale Light will
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turn off only after the tires are inflated to the vehicle’s
recommended cold placard pressure value.
CAUTION!
• The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system op-
eration or sensor damage may result when using
replacement equipment that is not of the same size,
type, and/or style. Aftermarket wheels can cause
sensor damage.
• Using aftermarket tire sealants may cause the Tire
Pressure Monitoring System (TPMS) sensor to be-
come inoperable. After using an aftermarket tire
sealant it is recommended that you take your vehicle
to an authorized dealership to have your sensor
function checked.
• After inspecting or adjusting the tire pressure always
reinstall the valve stem cap. This will prevent mois-
ture and dirt from entering the valve stem, which
could damage the TPMS sensor.
NOTE:
• The TPMS is not intended to replace normal tire care and
maintenance or to provide warning of a tire failure or
condition.
• The TPMS should not be used as a tire pressure gauge
while adjusting your tire pressure.
• Driving on a significantly under-inflated tire causes the
tire to overheat and can lead to tire failure. Under-
inflation also reduces fuel efficiency and tire tread life,
and may affect the vehicle’s handling and stopping
ability.
• The TPMS is not a substitute for proper tire mainte-
nance, and it is the driver’s responsibility to maintain
correct tire pressure using an accurate tire pressure
gauge, even if under-inflation has not reached the level
to trigger illumination of the TPM Telltale Light.
• Seasonal temperature changes will affect tire pressure,
and the TPMS will monitor the actual tire pressure in the
tire.
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The Tire Pressure Monitor System (TPMS) uses wireless
technology with wheel rim mounted electronic sensors to
monitor tire pressure levels. Sensors, mounted to each
wheel as part of the valve stem, transmit tire pressure
readings to the receiver module.
NOTE:
It is particularly important for you to check the tire
pressure in all of the tires on your vehicle monthly and to
maintain the proper pressure.
The TPMS consists of the following components:
• Receiver module
• Four tire pressure monitoring sensors
• Various tire pressure monitoring system messages,
which display in the instrument cluster
• Tire Pressure Monitoring System Warning Light
Tire Pressure Monitor Display
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Tire Pressure Monitoring Low Pressure Warnings
The “Tire Pressure Monitoring Telltale 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.
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
automatically update, the graphic display in the instru-
ment cluster will return to it’s original color, and the “Tire
Pressure Monitoring Telltale 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
recommended cold placard pressure in order to turn the
Tire Pressure Monitoring Telltale Light off.
Service TPMS Warning
If a system fault is detected, the “Tire Pressure Monitoring
Telltale 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
Low Tire Pressure Display
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longer exists, the “Tire Pressure Monitoring Telltale 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 TPM sensors.
• Installing aftermarket window tinting that contains ma-
terials 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
location condition. When a system fault occurs due to an
incorrect TPM sensor location, the “Tire Pressure Monitor-
ing Telltale 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 Telltale 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 TPM Telltale 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 TPM Telltale 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.
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