ignition RAM 1500 2023 Manual Online

236MULTIMEDIA
Voice Text Reply — If Equipped
Uconnect can announce incoming text messages. Push
the VR button or Phone button and say:

1. “
Listen
” to have the system read an incoming text
message. (Must have compatible mobile phone
paired to Uconnect system.)

2. “ Reply” after an incoming text message has been
read.
Listen to the Uconnect prompts. After the beep, re -
peat one of the predefined messages and follow the
system prompts.NOTE:Only use the numbering listed in the provided table.
Otherwise, the system will not transpose the message.
Did You Know: Your mobile phone must have the full
implementation of the Message Access Profile (MAP) to
take advantage of this feature. For details about MAP, visit
UconnectPhone.com.
Apple® iPhone® iOS 5 or later supports reading incoming
text messages only. For further information on how to
enable this feature on your Apple® iPhone®, refer to your
iPhone® “User Manual”.
Did You Know: Voice Text Reply is not compatible with
iPhone®, but if your vehicle is equipped with Siri® Eyes
Free, you can use your voice to send a text message.
Siri® Eyes Free — If Equipped
When used with your Apple® iPhone® connected to your
vehicle via Bluetooth®, Siri lets you use your voice to send
text messages, select media, place phone calls and much
more. Siri uses your natural language to understand what
you mean and responds back to confirm your requests.
The system is designed to keep your eyes on the road and
your hands on the wheel by letting Siri help you perform
useful tasks.
To enable Siri, push and hold, then release the Uconnect
Voice Recognition (VR) button on the steering wheel. After
you hear a double beep, you can ask Siri to play podcasts
and music, get directions, read text messages, and many
other useful requests.BLUETOOTH® COMMUNICATION LINK
Mobile phones may lose connection to the Uconnect
Phone. When this happens, the connection can generally
be re-established by restarting the mobile phone. Your
mobile phone is recommended to remain in Bluetooth®
ON Mode.
POWER-UP
After switching the ignition key from OFF to either the
ON/RUN or ACC position, or after a language change, you
must wait at least 15 seconds prior to using the system
Úpage 402.
CONNECTED VEHICLE SERVICES —
IF EQUIPPED
IS MY VEHICLE CONNECTED?
If equipped, vehicles with an ASSIST and an SOS button
are connected vehicles. These buttons will be located on
either the rearview mirror or overhead console, depending
on the vehicle. If these buttons are present in your vehicle,
you have a connected radio and can take advantage of the
many connected vehicle features.
For further information about the ASSIST and SOS buttons
Úpage 314.
PRE-DEFINED VOICE TEXT REPLY RESPONSES
Yes. Stuck in traffic. See you later.
No. Start without
me. I’ll be late.
Okay. Where are you? I will be 5
minutes late.
Call me.
Are you there
yet?
I’ll call you later. I need
directions. See you in 5 10, 15, 20, 25, 30, 45, 60> minutes.
I’m on my way.
Can’t talk right
now.
I’m lost. Thanks.

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240MULTIMEDIA
How It Works

1. Push the SOS Call button; the indicator light will turn green indicating a call has been placed.

NOTE:
In case the SOS Call button is accidentally pushed,
there is a 10-second delay before the SOS call is
placed. The system will verbally alert you that a
call is about to be made. To cancel the SOS Call
connection, push the SOS Call button on the
rearview mirror or overhead console or press
the Cancel button on the touchscreen within
10 seconds.
 During an SOS Call, the Bluetooth®-paired phone
is disconnected so incoming or outgoing calls will
go through your mobile device versus the
hands-free system which is not available due to
the SOS Call.
2. Once a connection between the vehicle and a SiriusXM Guardian™ Customer Care agent is made,
the agent will stay on the line with you.
NOTE:Calls between the vehicle occupants and the SiriusXM
Guardian™ Customer Care center may be recorded or
monitored for quality assurance purposes. Through your
enrollment in and use of the SiriusXM Guardian™
connected services, you consent to being recorded. SOS Call System Limitations
Vehicles that have been purchased in the US and that
travel into Mexico and Canada may have limited services.
In particular, responses to SOS calls or other emergency
services may be unavailable or very limited. Vehicles
purchased outside the United States and Canada are
unable to receive SiriusXM Guardian™ connected
services.
If the SOS Call system detects a malfunction, any of the
following may occur at the time the malfunction is
detected:

The light will continuously be illuminated red.
 The screen will display the following message “Vehicle
phone requires service. Please contact your dealer.”
 An in-vehicle audio message will state “Vehicle phone
requires service. Please contact your dealer.”
Even if the SOS Call system is fully functional, factors
beyond FCA US LLC’s control may prevent or stop SOS Call
system operation. These include, but are not limited to,
the following factors:
 The ignition key is in OFF position.
 The vehicle’s electrical systems are not intact.
 The vehicle battery loses power or becomes
disconnected during a vehicle crash. 
The SOS Call system software and/or hardware is
damaged during a vehicle crash.
 LTE (voice/data) or 4G (data) coverage and/or GPS
signals are unavailable or obstructed.
 Network congestion.
 Weather conditions.
 Buildings, structures, geographic terrain, or tunnels.
If your vehicle loses battery power for any reason
(including during or after an accident), the SOS Call
system, among other vehicle systems, will not operate.
Requirements
 This feature is available only on vehicles sold in the US
or Canada.
 Vehicle must be properly equipped with the SiriusXM
Guardian™ connected services. Vehicle must be regis -
tered with SiriusXM Guardian™ and have an active
subscription that includes the applicable feature.
 Vehicle must have an operable LTE (voice/data) or 4G
(data) network connection compatible with your device.
 Vehicle must be powered in the ON/RUN or ACC
(Accessory) position with a properly functioning elec -
trical system.

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MULTIMEDIA243
Requirements
 Vehicle must be properly equipped with SiriusXM
Guardian™.
 Vehicle must have an operable LTE (voice/data) or 4G
(data) network connection. If using the Vehicle
Branded App to command your vehicle, your device
must be compatible and be connected to an operable
LTE (voice/data) or 4G (data) network connection.
 Vehicle must be registered with SiriusXM Guardian™
and have an active subscription that includes the appli -
cable feature.
 An ignition cycle is required for some remote
commands, such as Remote Vehicle Start and Remote
Door Lock/Unlock if following a Remote Horn & Lights
activation.
 Your Remote Door Lock/Unlock request will not be
processed if the vehicle is in motion, the ignition key is
on or during an emergency call.
NOTE:All other remote services should be performed via your
Owner’s Site or through the Vehicle Branded App on your
compatible device.
Remote Vehicle Start
Description
The Remote Vehicle Start feature provides you with the
ability to start the engine on your vehicle without the keys
and from virtually any distance. Once started, the preset
climate controls in your vehicle can warm up or cool down
the interior. You can also send a command to turn off an engine that
has been started using Remote Vehicle Start. After
15 minutes, if you have not entered your vehicle with the
key, the engine will shut off automatically.
This remote function requires your vehicle to be equipped
with a factory-installed Remote Start system.
You can set up push notifications every time a command
is sent to activate or cancel Remote Start.
Working Vehicle Conditions

The vehicle must be off or in ACC mode.
 The vehicle has been started with the key fob within the
last 14 days.
 The vehicle must be in PARK or at a standstill.
 The vehicle’s security system has been armed and not
triggered since the last vehicle start.
 The doors, hood, and trunk/liftgate are closed.
 The vehicle’s check engine light must be off.
 The vehicle must have at least a quarter tank of fuel,
along with oil and battery power.
 The vehicle’s hazard lights must be off.
 If equipped, the vehicle must have an automatic trans -
mission.
 The vehicle must be in an open area with cell tower
reception.
 Your mobile device must have a cellular or Wi-Fi
connection.
 If the Panic button has been pressed, the vehicle must
be started at least once after alarming the system.
NOTE:The SiriusXM Guardian™ Customer Care agents are not
authorized for Remote Vehicle Start services. Contact the
Uconnect Care Team for assistance.
Remote Horn & Lights
Description
It is easy to locate a vehicle in a dark, crowded or noisy
parking area by activating the horn and lights. It may also
help if you need to draw attention to your vehicle for any
reason.
If you want, you can set up push notifications every time a
command is sent to turn on the horn and lights.
Working Vehicle Conditions
The vehicle must in PARK or at a standstill.
 The vehicle must be in an open area with cell tower
reception.
 Your mobile device must have a cellular or Wi-Fi
connection.
NOTE:The Remote Horn & Lights feature is designed to be loud
and get noticed. Please keep in mind the surroundings
when using this feature. You are responsible for
compliance with local laws, rules and ordinances in the
location of your vehicle when using Remote Horn & Lights.
5

23_DT_OM_EN_USC_t.book Page 243

MULTIMEDIA245
Requirements
Vehicle must have an operable LTE (voice/data) or 4G
(data) network connection compatible with your device.
 Vehicle must have an active subscription that includes
the applicable feature.
Vehicle Finder
Description
The Vehicle Finder feature allows you to find the location
of your vehicle.
You can also sound the horn and flash the lights to make
finding your vehicle even easier.
How It Works
Select the Vehicle Finder function within the Vehicle
Branded App and select the Location tab at the bottom of
the App. Then, press the Vehicle icon to find your vehicle.
Requirements
Vehicle must be properly equipped with the Uconnect
system.
 Vehicle must have an operable LTE (voice/data) or 4G
(data) network connection compatible with your device.
 Vehicle must have an active subscription that includes
the applicable feature.
 Vehicle ignition must have been turned on within
14 days.
4G Wi-Fi Hotspot — If Equipped
Description
4G Wi-Fi Hotspot is an in-vehicle service that connects
your device to an LTE (voice/data) or 4G (data) network
that is ready to go wherever you are. After you've made
your purchase, turn on your device’s Wi-Fi and connect
your devices.
Enables all your passengers to be simultaneously
connected to the web.
 Connect several devices at one time.
 Any Wi-Fi-enabled device — such as a laptop or any
other portable-enabled media — can connect over your
private in-vehicle network.
 A high-speed, secured connection lets anyone on your
private network access the Web — great for working
and relaxing. Create A 4G Wi-Fi Hotspot For Use In Your Vehicle
How It Works
The 4G Wi-Fi Hotspot feature provides the
vehicle passengers with an internet access
hotspot in the vehicle, using the radio as an
access point. The hotspot will allow
Wi-Fi-enabled in-vehicle devices (such as a laptop or any
other portable-enabled media device) to wirelessly
connect to the internet. Uconnect offers a complimentary
3-month trial period that includes 1GB of total data. The
trial can be activated any time within the first year of new
vehicle ownership.
Use one of these three ways to purchase a subscription to
the 4G Wi-Fi Hotspot:

1. From your vehicle’s touchscreen, select the 4G Wi-Fi Hotspot App, and press the How To Purchase button
and follow the instructions.

2. Log onto your Owner’s Site and click the link to the AT&T portal to get set up.
3. For existing Connected Car customers: Push the
ASSIST button to be routed to an AT&T Customer Care
agent who will assist you.
WARNING!
The driver should NEVER use the 4G Wi-Fi Hotspot
while driving the vehicle as doing so may result in an
accident involving serious injury or death.
5

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262
(Continued)
SAFETY
SAFETY FEATURES
ANTI-LOCK BRAKE SYSTEM (ABS)
The ABS provides increased vehicle stability and brake
performance under most braking conditions. The system
automatically prevents wheel lock and enhances vehicle
control during braking.
The ABS performs a self-check cycle to ensure that the
ABS is working properly each time the vehicle is started
and driven. During this self-check, you may hear a slight
clicking sound as well as some related motor noises.
The ABS is activated during braking when the system
detects one or more wheels are beginning to lock. Road
conditions such as ice, snow, gravel, bumps, railroad
tracks, loose debris, or panic stops may increase the
likelihood of ABS activation(s).
You also may experience the following normal
characteristics when the ABS activates:
ABS motor noise or clicking sounds (you may continue
to hear for a short time after the stop)
 Brake pedal pulsations
 A slight drop of the brake pedal at the end of the stop The ABS is designed to function with the Original
Equipment Manufacturer (OEM) tires. Modification may
result in degraded ABS performance.
Anti-Lock Brake System (ABS) Warning
Light
The yellow ABS Warning Light will turn on when the ignition
is placed in the ON/RUN mode and may stay on for as long
as four seconds.
If the ABS Warning Light remains on or comes on while
driving, it indicates that the anti-lock portion of the brake
system is not functioning and that service is required.
However, the conventional brake system will continue to
operate normally if the ABS Warning Light is on.
If the ABS Warning Light is on, the brake system should be
serviced as soon as possible to restore the benefits of
Anti-Lock Brakes. If the ABS Warning Light does not come
on when the ignition is placed in the ON/RUN mode, have
the light repaired as soon as possible.
WARNING!

The ABS contains sophisticated electronic equip -
ment that may be susceptible to interference caused
by improperly installed or high output radio transmit -
ting equipment. This interference can cause possible
loss of anti-lock braking capability. Installation of
such equipment should be performed by qualified
professionals.
 Pumping of the Anti-Lock Brakes will diminish their
effectiveness and may lead to a collision. Pumping
makes the stopping distance longer. Just press firmly
on your brake pedal when you need to slow down or
stop.
 The ABS cannot prevent the natural laws of physics
from acting on the vehicle, nor can it increase
braking or steering efficiency beyond that afforded
by the condition of the vehicle brakes and tires or the
traction afforded.
The ABS cannot prevent collisions, including those
resulting from excessive speed in turns, following
another vehicle too closely, or hydroplaning.
 The capabilities of an ABS equipped vehicle must
never be exploited in a reckless or dangerous
manner that could jeopardize the user’s safety or the
safety of others.
WARNING!

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SAFETY263
REAR SEAT REMINDER ALERT (RSRA)
RSRA alerts of the possible presence of an object,
passenger, or pet in the rear seats through a visual and
auditory notification. When the system is activated, it
displays the message “Check Rear Seat” on the
instrument cluster display and sounds an auditory alert
upon the driver placing the ignition in the OFF position to
exit the vehicle. The system will activate automatically if a
rear door is opened within 10 minutes of the ignition being
placed in the ON/RUN position. RSRA should be used as a
reminder to check the rear seats, it does not directly
detect objects, passengers, or pets and is only activated
when the previous conditions are met.
To enable or disable RSRA, see
Úpage 191.
ELECTRONIC BRAKE CONTROL (EBC)
S
YSTEM
Your vehicle is equipped with an advanced Electronic
Brake Control (EBC) system. This system includes
Anti-Lock Brake System (ABS), Brake Assist System (BAS),
Electronic Brake Force Distribution (EBD), Electronic Roll
Mitigation (ERM), Electronic Stability Control (ESC), Hill
Start Assist (HSA), and Traction Control System (TCS).
These systems work together to enhance both vehicle
stability and control in various driving conditions.
Your vehicle may also be equipped with Trailer Sway
Control (TSC) and Hill Descent Control (HDC).
Brake Assist System (BAS)
The BAS is designed to optimize the vehicle’s braking
capability during emergency braking maneuvers. The
system detects an emergency braking situation by sensing
the rate and amount of brake application, and then
applies optimum pressure to the brakes. This can help
reduce braking distances. The BAS complements the
Anti-Lock Brake System (ABS). Applying the brakes very
quickly results in the best BAS assistance. To receive the
benefit of the system, you must apply continuous braking
pressure during the stopping sequence (do not “pump”
the brakes). Do not reduce brake pedal pressure unless
braking is no longer desired. Once the brake pedal is
released, the BAS is deactivated.
Brake System Warning Light
The red Brake System Warning Light will turn on when the
ignition is placed in the ON/RUN mode and may stay on for
as long as four seconds.
If the Brake System Warning Light remains on or comes on
while driving, it indicates that the brake system is not
functioning properly and that immediate service is
required. If the Brake System Warning Light does not
come on when the ignition is placed in the ON/RUN mode,
have the light repaired as soon as possible.
Electronic Brake Force Distribution (EBD)
EBD manages the distribution of the braking torque
between the front and rear axles by limiting braking
pressure to the rear axle. This is done to prevent overslip
of the rear wheels to avoid vehicle instability, and to
prevent the rear axle from entering the Anti-Lock Brake
System (ABS) before the front axle.
WARNING!
 Before exiting a vehicle, always come to a complete
stop, then shift the automatic transmission into
PARK and apply the parking brake.
 Always make sure the keyless ignition node is in the
OFF position, key fob is removed from the vehicle
and vehicle is locked.
 Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Leaving children in a
vehicle unattended is dangerous for a number of
reasons. A child or others could be seriously or fatally
injured. Children should be warned not to touch the
parking brake, brake pedal or the gear selector.
 Do not leave children or animals inside parked vehi -
cles in hot weather. Interior heat buildup may cause
serious injury or death.
WARNING!
The Brake Assist System (BAS) cannot prevent the
natural laws of physics from acting on the vehicle, nor
can it increase the traction afforded by prevailing road
conditions. BAS cannot prevent collisions, including
those resulting from excessive speed in turns, driving
on very slippery surfaces, or hydroplaning. The
capabilities of a BAS-equipped vehicle must never be
exploited in a reckless or dangerous manner, which
could jeopardize the user's safety or the safety of
others.
6

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SAFETY265
ESC Operating Modes
Depending upon model and mode of operation, the ESC
system may have multiple operating modes.
ESC On
This is the normal operating mode for the ESC. Whenever
the vehicle is started, the ESC system will be in this mode.
This mode should be used for most driving conditions.
Alternate ESC modes should only be used for specific
reasons as noted in the following paragraphs.
Partial Off
This mode may be useful if the vehicle becomes stuck.
This mode may modify TCS and ESC thresholds for
activation, which allows for more wheel spin than normally
allowed.
To enter the “Partial Off” mode, momentarily push the ESC
OFF button and the ESC OFF Indicator Light will illuminate.
To turn the ESC on again, momentarily push the ESC OFF
button and the ESC OFF Indicator Light will turn off.
NOTE:For vehicles with multiple partial ESC modes, the push and
release of the button will toggle the ESC modes. Multiple
attempts may be required to return to “ESC On”. Full Off — If Equipped
This mode is intended for off-highway or off-road use only
and should not be used on any public roadways. In this
mode, TCS and ESC features are turned off. To enter the
“Full Off” mode, push and hold the ESC OFF button for five
seconds while the vehicle is stopped with the engine
running. After five seconds, a chime will sound, the ESC
OFF Indicator Light will illuminate, and the “ESC OFF”
message will display in the instrument cluster. To turn ESC
on again, momentarily push the ESC OFF button.
NOTE:System may switch from ESC “Full Off” to “Partial Off”
mode when vehicle exceeds a predetermined speed.
When the vehicle speed slows below the predetermined
speed the system will return to ESC “Full Off”.
ESC modes may also be affected by drive modes (if
equipped).
ESC Activation/Malfunction Indicator Light
And ESC OFF Indicator Light
The ESC Activation/Malfunction Indicator Light
in the instrument cluster will come on when the
ignition is placed in the ON/RUN mode. It
should go out with the engine running. If the
ESC Activation/Malfunction Indicator Light comes on
continuously with the engine running, a malfunction has
been detected in the ESC system. If this light remains on
after several ignition cycles, and the vehicle has been
driven several miles (kilometers) at speeds greater than
30 mph (48 km/h), see an authorized dealer as soon as possible to have the problem diagnosed and corrected.
WARNING!
 When in “Partial Off” mode, the TCS functionality of
ESC (except for the limited slip feature described in
the TCS section) has been disabled and the ESC OFF
Indicator Light will be illuminated. When in “Partial
Off” mode, the engine power reduction feature of
TCS is disabled, and the enhanced vehicle stability
offered by the ESC system is reduced.
 Trailer Sway Control (TSC) is disabled when the ESC
system is in the “Partial Off” mode.
WARNING!
In the ESC “Full Off” mode, the engine torque reduc -
tion and stability features are disabled. Therefore,
enhanced vehicle stability offered by the ESC system
is unavailable. In an emergency evasive maneuver,
the ESC system will not engage to assist in main -
taining stability. ESC “Full Off” mode is intended for
off-highway or off-road use only.
 The Electronic Stability Control (ESC) cannot prevent
the natural laws of physics from acting on the
vehicle, nor can it increase the traction afforded by
prevailing road conditions. ESC cannot prevent all
accidents, including those resulting from excessive
speed in turns, driving on very slippery surfaces, or
hydroplaning. ESC also cannot prevent collisions.
6

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266SAFETY
The ESC Activation/Malfunction Indicator Light starts to
flash as soon as the tires lose traction and the ESC system
becomes active. The ESC Activation/Malfunction Indicator
Light also flashes when TCS is active. If the ESC
Activation/Malfunction Indicator Light begins to flash
during acceleration, ease up on the accelerator and apply
as little throttle as possible. Be sure to adapt your speed
and driving to the prevailing road conditions.
The ESC OFF Indicator Light indicates that the
Electronic Stability Control (ESC) is in a reduced
mode.
NOTE:
The ESC Activation/Malfunction Indicator Light and the
ESC OFF Indicator Light come on momentarily each
time the ignition is placed in the ON/RUN mode.
 Each time the ignition is placed in the ON/RUN mode,
the ESC system will be on even if it was turned off previ -
ously.
 The ESC system will make buzzing or clicking sounds
when it is active. This is normal; the sounds will stop
when ESC becomes inactive following the maneuver
that caused the ESC activation.
Hill Start Assist (HSA)
HSA is designed to mitigate roll back from a complete stop
while on an incline. If the driver releases the brake while
stopped on an incline, HSA will continue to hold the brake
pressure for a short period. If the driver does not apply the
throttle before this time expires, the system will release
brake pressure and the vehicle will roll down the hill as
normal. The following conditions must be met in order for HSA to
activate:

The feature must be enabled.
 The vehicle must be stopped.
 The parking brake must be off.
 The driver door must be closed.
 The vehicle must be on a sufficient grade.
 The gear selection must match vehicle uphill direction
(i.e., vehicle facing uphill is in forward gear; vehicle
backing uphill is in REVERSE gear).
 HSA will work in REVERSE gear and all forward gears.
The system will not activate if the transmission is in
PARK or NEUTRAL.
Disabling And Enabling HSA
This feature can be turned on or turned off. To change the
current setting, proceed as follows:
If disabling HSA using Uconnect Settings
Úpage 191.
Towing With HSA
HSA will also provide assistance to mitigate roll back while
towing a trailer.
WARNING!
There may be situations where the Hill Start Assist
(HSA) will not activate and slight rolling may occur, such
as on minor hills or with a loaded vehicle, or while
pulling a trailer. HSA is not a substitute for active driving
involvement. It is always the driver’s responsibility to be
attentive to distance to other vehicles, people, and
objects, and most importantly brake operation to
ensure safe operation of the vehicle under all road
conditions. Your complete attention is always required
while driving to maintain safe control of your vehicle.
Failure to follow these warnings can result in a collision
or serious personal injury.
WARNING!
If you use a trailer brake controller with your trailer,
the trailer brakes may be activated and deactivated
with the brake switch. If so, there may not be enough
brake pressure to hold both the vehicle and the
trailer on a hill when the brake pedal is released. In
order to avoid rolling down an incline while resuming
acceleration, manually activate the trailer brake or
apply more vehicle brake pressure prior to releasing
the brake pedal.
 HSA is not a parking brake. Always apply the parking
brake fully when exiting your vehicle. Also, be certain
to place the transmission in PARK.
 Failure to follow these warnings can result in a colli -
sion or serious personal injury.

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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.
6

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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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