OPERATOR’S MANUAL
BENDIX® FUSION™ ACTIVE
SAFETY SYSTEM WITH ACB
(ACTIVE CRUISE WITH BRAKING)
STOP AND AUTO-GO™

This booklet contains important operational and safety information that benefits you and subsequent drivers.

THE BENDIX® ESP® STABILITY SYSTEM
All vehicles equipped with the Bendix® Fusion™ system are also
equipped with the Bendix® ESP® full stability system. When necessary,
Bendix ESP automatically intervenes to reduce the accelerator pedal
input and/or apply the foundation brakes to help you maintain
stability during potential loss-of-control or rollover events.
The Fusion system uses the ESP system to help maintain vehicle
stability during brake applications.
The Bendix ESP stability system and the Fusion system do not replace
the need for you to remain alert, react appropriately and in a timely
manner, and use safe driving practices. Bendix safety technologies
complement safe driving practices. Responsibility for the safe
operation of the vehicle remains with you, the driver, at all times.

Improper use of the Fusion system can result in a collision
causing property damage, serious injuries, or death. Be
sure to read, understand, and follow all these instructions
carefully.

Bendix safety technologies complement safe driving practices. No
commercial vehicle safety technology replaces a skilled, alert driver
exercising safe driving techniques and proactive, comprehensive
driver training. Responsibility for the safe operation of the vehicle
remains with the driver at all times.

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TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
System Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Active Cruise with Braking (ACB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Auto-Resume™ after an ACB Braking Event . . . . . . . . . . . . . . . . . . . . . . . . . 8
Canceling Cruise Control and ACB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ACB Stop and Auto-Go™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
Impact Alert (IA) and Autonomous Emergency Braking (AEB) . . . . . . . . . . . . 14
Indefinite Service Brake Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Stationary Vehicle Braking (SVB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Multi-lane Autonomous Emergency Braking (AEB) . . . . . . . . . . . . . . . . . . . 16
Following Distance Alert (FDA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-19
Highway Departure Warning (HDW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Highway Departure Braking (HDB) . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-20
Over-speed Alert and Action (OAA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Special Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Brake Overuse Alert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
System Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-23
What to Expect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-29
Potentially Challenging Situations . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-32
System Maintenance and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 33-35
Additional Operational Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Acronyms and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

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INTRODUCTION
This Operator’s Manual provides an
overview of the Bendix® Fusion™ system
with ACB (Active Cruise with Braking)
Stop and Auto-Go™. This manual explains
the components, features, and functions,
along with example descriptions and
explanations, of the audio and visual
alerts and system interventions that can
be expected during operation.
Read this manual thoroughly before
operating the system. Be familiar with
the controls, system alerts, and what to
Figure 1 - System Initializing
expect when the system is on.
Keep this manual in the vehicle as a
reference for the system, its operation, and its performance characteristics. See
Figure 1 for examples of the messages you may see on the integrated display when
the Fusion system is initializing.

Additional Information about Bendix® Systems
For additional information about Bendix® systems, visit bendix.com or call
1-800-AIR-BRAKE (1-800-247-2725). Representatives are available to assist you Monday
through Thursday, 8:00 a.m. to 6:00 p.m. and Friday, 8:00 a.m. to 5:00 p.m. ET.
NOTE: All of these alerts and actions are part of the Fusion system’s enhanced feature
set released by Bendix. It is possible for this Operator’s Manual to be moved from
vehicle to vehicle. You must verify with the vehicle OEM to determine which features
are included on your own vehicle.

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IMPORTANT SAFETY INFORMATION
As a driver, you are always responsible for the control and safe operation
of the vehicle at all times. The Fusion system does not replace the need for
a skilled, alert professional driver, reacting appropriately and in a timely
manner, and using safe driving practices.
If you determine that a hazard or unsafe condition exists, you should take
all necessary actions immediately. Never wait for the Fusion system to
intervene.
Due to the inherent limitations of image recognition technology, camerabased safety technology may not be able to detect or may misinterpret
lane markings. At these times, alerts may not occur, or erroneous alerts
may occur.
The Bendix® Fusion™ system reacts ONLY to vehicles that are stationary
or moving in the same direction as your vehicle. The Fusion system DOES
NOT respond to side-to-side moving traffic, or oncoming traffic. The system
will not slow your vehicle or provide an alert as you approach vehicles in
these circumstances. See Figure 2.

Detected forward vehicle

Vehicle equipped with the
Bendix® Fusion™ System

The system does not brake nor warn
for vehicles approaching from the side
or oncoming

Figure 2 - System Responses
When the Fusion system needs to intervene, it works in conjunction with
the Bendix® ESP® full stability system to engage the foundation brakes.
The system should never be relied upon to stop your vehicle or to avoid
a collision. You can, and should, still apply full braking force, if needed.
Potential False Alerts – The Fusion system may generate a false alert or
false braking. Radar and camera technology is not perfect, and false alerts
sometimes occur.

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Pedestrians, Animals, Non-Metallic, or Limited-Metallic Objects – The
Fusion system will not warn or react to animals or non-metallic objects.
The system may not warn or react to limited-metallic objects (such as
recreational vehicles, horse-drawn buggies, motorcycles, logging trailers,
etc.). The Fusion system may react to pedestrians in the vehicle path during
ACB (Active Cruise with Braking) Stop and Auto-Go™.
The system should never be relied upon to stop your vehicle or to avoid
a collision. You can, and should, still apply full braking force, if needed.
Metallic objects may impair the radar – Objects that are radarreflective – such as crash barriers, guard rails, construction zone
barricades, and tunnel entrances – may impair the function of the radar.
Approach grades as you would normally, with the appropriate gear
selected and at a safe speed. Caution is advised if you, the driver, decide
to use ACB during downhill grades. Follow all safe driving practices. ACB
should not be used on hills greater than OEM recommendations.
Inspect the radar and mounting bracket regularly and remove any mud,
snow, ice build-up, or other obstructions. Installing aftermarket deer or
bumper guards is not recommended and could impair the operation of
the radar.
If the bumper and/or radar are damaged or misaligned – or if the radar was
tampered with – do not use the cruise control until the vehicle is repaired
and the radar is re-aligned.
If a problem is detected with the Bendix® Fusion™ system, there is an
audible alert and/or icon on the display. Depending on the type of
problem, the system may disable cruise control functions until service is
performed.
Smaller forward vehicles, such as motorcycles, may be difficult for the
radar to identify. As the driver, it is your responsibility to be aware of this
type of vehicle and to be cautious.
As the driver, you should always be responsible for the safe operation of
the vehicle and be aware of potential threats that may enter the vehicle’s
lane of travel. As the driver, you should always be alert and ready to take
over.
Indefinite service brake hold is not a parking brake. After ACB, you, the
driver, must take over and secure the vehicle. As the driver, you should use
caution and manually apply the parking brake when parking the vehicle
on a steep grade or when exiting the vehicle.

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SYSTEM COMPONENTS
See Figure 3. The main components used in the Bendix® Fusion™ system are the Bendix®
ESP® Controller; the Bendix® radar; the Bendix™ camera (powered by the Mobileye®
System-on-Chip EyeQ® processor with state-of-the-art-vision algorithms); the OEM
display; and the SafetyDirect® by Bendix CVS Processor.
Bendix® Radar
Sensor

Bendix® ESP®
Controller

SafetyDirect®
by Bendix CVS
Processor

Bendix™
Camera

Figure 3 - System Components
The Fusion system locates and tracks moving and stationary vehicles and objects. The
radar is located at the front of your vehicle. The camera is located on the windshield,
inside the wiper path.
The Fusion system radar is pre-aligned at the factory and no adjustment should be
needed. If the radar becomes misaligned – or any other system problem is detected
– a message (or light) on the display lets you know that service is needed.

SYSTEM DISPLAY
Driver information about the Fusion system is fully integrated into the vehicle display.
See the System Features section of this manual for more detailed information about
the alerts.

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SYSTEM FEATURES
Active Cruise with Braking (ACB)
NOTE: Some OEMs use the term ACC (Active Cruise Control) instead of ACB.
When normal cruise control is on and set, as confirmed, by the green cruise control
icon on the display, the ACB feature also becomes available. The system will not
only intervene to maintain the cruise control set speed, but also can intervene – if
needed – to maintain a set default following distance behind the moving vehicle
in front of you.
When you encounter a detected forward vehicle that slows down below the cruise
control set speed, the system has the ability to decrease the accelerator pedal
input, apply the retarder, or activate the foundation brakes – if needed – in order to
maintain the gap with the forward vehicle. The following distance is adjustable on
some vehicles. See the striped area in Figure 4.
Detected forward
vehicle

NOT TO SCALE
The STRIPED area approximates the
zone where the ACB feature is ready to
alert – and intervene with the vehicle’s
brakes – when the cruise control is set.

The DARK GREY area approximates the
zone where the Bendix® Fusion™ system
is ready to alert – and intervene with
the vehicle’s brakes – at all times.

Figure 4 - ACB
Auto-Resume™ after an ACB Braking Event
If the Fusion system automatically applies the foundation brakes in order to maintain
the gap with the forward vehicle, and the vehicle remains above a minimum speed
defined by the OEM, the vehicle will “auto-resume” back to the cruise control set
speed while still attempting to maintain the set following distance gap with the
forward vehicle. The cruise control icon will remain green, indicating cruise control
is engaged. If the vehicle is below the minimum defined speed, cruise control will
automatically cancel and will not attempt to adjust the speed to the previously set
speed. The cruise control icon will change to white, indicating cruise control is not set.
NOTE: As the driver, you should always be alert and ready to take over.

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Canceling Cruise Control and Active Cruise with Braking (ACB)
At any time, you can step on the brake
pedal, press “cancel,” or turn cruise
control off via the switch to cancel cruise
control and the ACB (Active Cruise with
Braking) Auto-Resume™ feature.
Figure 5 shows an integrated display
message you may see when the ACB
and the ACB Auto-Resume feature are
actively engaged and maintaining a set
following distance behind the forward
vehicle. Additionally, Figure 5 shows a
message you may see on the integrated
display when ACB and the ACB AutoResume function cancel, and ACB is
monitoring the forward vehicle. Alerts
and messages will come from the OEM
display. Please verify with the vehicle
Operator’s Manual for the actual audible Figure 5 - Canceling Cruise Control and
and visual indications your vehicle may ACB
display.
NOTE: As the driver, you should always be alert and ready to take over.
ACB Stop and Auto-Go™
When cruise control is on and set, if the
detected forward vehicle slows down to
a stop, the system can automatically dethrottle the engine, activate the engine
retarder, and apply the foundation
brakes to bring the vehicle to a full stop.
If the detected vehicle in front of your
vehicle moves forward within the ACB
Auto-Resume time period and an object
Figure 6 - ACB Stop and Auto-Go
or pedestrian is not detected between
the front of your vehicle and the detected
forward vehicle, your vehicle will “auto-resume” and return back to the cruise control
set speed while attempting to maintain the set following distance with the forward
vehicle. Figure 6 shows a message you may see on the integrated display when the
ACB Auto-Resume function is actively engaged during the ACB Stop and Auto-Go
function.
NOTE: Confirm the auto-resume time period with your OEM.
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NOTE: The Bendix® Fusion® system may
react to pedestrians in the vehicle path
during ACB (Active Cruise with Braking)
Stop and Auto-Go™. Figure 7 shows a
message you may see on the integrated
display indicating a pedestrian or object
has been detected.
If the detected forward vehicle does
not move within the auto-resume time Figure 7 - Pedestrian Detection
period, the ACB Auto-Resume™ function
will cancel and the foundation brakes will hold the vehicle at a stop indefinitely. You,
the driver, must take over. You can manually speed up the vehicle by pressing down
on the accelerator pedal or pressing the cruise control resume switch. The ACB system
will automatically re-engage upon reaching the vehicle’s minimum cruise control set
speed defined by the OEM and will “auto-resume” back to the cruise control set speed.
Figure 8 shows a message you may see
on the integrated display when the ACB
Auto-Resume function cancels and ACB
is monitoring the forward vehicle. Alerts
and messages will come from the OEM
display. Please verify with the vehicle
Operator’s Manual for the actual audible
and visual indications your vehicle may
display.
NOTE: As the driver, you should always Figure 8 - ACB Auto-Resume
be alert and ready to take over.
Cancellation
NOTE: The indefinite service brake hold
can be canceled if you, the driver, press the accelerator pedal or the brake pedal,
apply the parking brake, or resume cruise control.
NOTE: Indefinite service brake hold is not a parking brake. As the driver, you must
take over and secure the vehicle.

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If the system detects an object between your vehicle and the detected forward
vehicle, the Active Cruise with Braking (ACB) function will cancel and the foundation
brakes will hold the vehicle at a stop indefinitely. As the driver, you must take over.
This function can only detect objects within the radar field of view and it is important
to note that the objects are not instantly detectable. You, the driver, should always
be responsible for the safe operation of the vehicle and be aware of potential threats
that may enter the vehicle’s lane of travel. ACB and the ACB Auto-Resume™ feature
should not be used in city environments with high occurrence of pedestrians or other
objects crossing in front of the vehicle. The Auto-Resume feature will also cancel
under any of the following circumstances:
•

If the forward vehicle tracking is lost

•

If the turn signal is activated

•

If the hazard lights are activated

•

If steering system input indicates the vehicle is planning to turn
Passing a Vehicle / Changing Lanes

The accelerator pedal can be applied to pass a vehicle at any time while the ACB
system is active.
When No Forward Vehicles are Present
When cruise control is switched on and set and no forward vehicle is within range
of the Bendix® Fusion™ system, the vehicle will maintain the set speed like ordinary
cruise control.

The Forward Detected Vehicle Icon
When cruise control is switched on and set, and a vehicle
ahead of you is detected by the system, the forward detected
vehicle icon on the vehicle display will illuminate. See Figure 9.
This is an indication to you that the Fusion system is actively
managing the distance between your vehicle and the vehicle
ahead, and that the system may automatically intervene.

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Figure 9 - Forward
Detected Vehicle
Icon

What is Following Distance?
Following distance refers to the time gap – measured in seconds – between the
vehicle equipped with the Bendix® Fusion™ system and the detected vehicle ahead.
The actual physical distance between the two will vary based on the speeds of both
vehicles. This physical distance is sometimes referred to as “headway.”
Automatic Foundation Brake Applications
The vehicle automatically manages foundation braking priorities among the various
vehicle systems that use the foundation brakes, such as the Fusion system, Bendix®
Electronic Stability Program (ESP®), Bendix® Automatic Traction Control (ATC), and
Bendix® Antilock Braking System (ABS).

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When Not to Use Cruise Control
This vehicle’s cruise control must only be used in the same conditions that
are normally recommended for ordinary cruise control. THERE ARE CERTAIN
SITUATIONS WHEN CRUISE CONTROL SHOULD NOT BE USED:
Inclement Weather/Low Visibility Situations – Do not use cruise
control in inclement weather or low visibility conditions – such as
rain, snow, smoke, fog, ice, or other severe weather conditions – that
may affect the performance of the Bendix® Fusion™ system.
Dense Traffic – Caution is advised if you, the driver, decide to use ACB
(Active Cruise with Braking) in dense traffic. Follow all safe driving
practices.
Sharp Curves and Winding Roads – Do not use cruise control when
traveling sharply curved or winding roadways. CAUTION: Road
curvature may impact the radar’s ability to track vehicles ahead in
the same lane.
Entrance or Exit Ramps – Caution is advised if you, the driver, decide
to use cruise control when entering or exiting roadways. Follow all
safe driving practices.
Downhill Grades – Caution is advised if you, the driver, decide to use
ACB during downhill grades. Follow all safe driving practices. ACB
should not be used on hills greater than OEM recommendations.
Construction Zones – Do not use cruise control in construction zones.

Off-Road – Do not use cruise control in off-road conditions.
Smaller Forward Vehicles – Smaller forward vehicles, such as
motorcycles, or certain types of trailers, may be difficult for the radar
and camera to identify. It is your responsibility to be aware of these
types of vehicles and to slow down if necessary.

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Impact Alert (IA) and Autonomous Emergency Braking (AEB)
This is the most severe warning and
action the Bendix® Fusion™ system can
make. The alert indicates that a collision
with the detected forward vehicle is
likely, and you should take immediate
action to potentially avoid – or lessen
the severity of – the potential collision.
If you do not address the potential
forward collision, the Fusion system may
automatically apply up to full foundation
brakes on the tractor while pulsing
the trailer brakes – if needed – to help
mitigate or lessen its severity.
When activated, you will be notified by Figure 10 - IA and AEB
an audible and visual indication from the
OEM-integrated display.
Figure 10 shows examples of messages you may see on the integrated display when
the IA or AEB is activated. Please verify with the vehicle Operator’s Manual for the
actual audible and visual indications your vehicle may display.
NOTE: As the driver, you should always be alert and ready to take over.
Indefinite Service Brake Hold
If, as a result of the Fusion system
intervention, the vehicle comes to a full
stop, the foundation brakes will hold the
vehicle at a stop indefinitely and you, the
driver, must take over. Indefinite service
brake hold is not a parking brake and you
must take over and secure the vehicle. If Figure 11 - Indefinite Service Brake
after a set period of time the driver does Hold
not respond, the integrated display will
show a driver takeover request (See Figure 11). As the driver, you should use caution
and manually apply the brakes on steep grades or when exiting the vehicle. You, the
driver, can manually launch the vehicle by pressing down on the accelerator pedal.
NOTE: As the driver, you should never exit the vehicle without first securing the
vehicle parking brake.
NOTE: As the driver, you should always be alert and ready to take over.
NOTE: The indefinite service brake hold can be canceled if you, the driver, press the
accelerator pedal or the brake pedal, or apply the parking brake.
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Slower Moving Vehicles Ahead
The Bendix® Fusion™ system is ready to intervene with braking, as needed, if the
system determines that a potential collision with a slower moving vehicle ahead is
imminent. You, the driver, must apply additional braking when necessary to maintain
a safe distance with the vehicle ahead. When approaching a slower moving vehicle
ahead, you should anticipate this and take necessary action. Do not wait for the
system to intervene!
Stationary Vehicle Braking (SVB)
When a potential collision with a large, stationary, metallic object in your lane of
travel (definitively identified as a vehicle) is detected, the system can sound an alert
before impact.
If you don’t take action to address the potential impact, the Fusion system can apply
foundation brakes to assist you in reducing the severity or potentially avoiding the
collision with that stationary vehicle.
If, as a result of the Fusion system intervention, the vehicle comes to a full stop, the
foundation brakes will hold the vehicle at a stop indefinitely and you, the driver, must
take over. Indefinite service brake hold is not a parking brake and you must take over
and secure the vehicle. As the driver, you should use caution and manually apply the
brakes on or when exiting the vehicle. You, the driver, can manually accelerate the
vehicle by pressing down on the accelerator pedal.
NOTE: As the driver, you should always be alert and ready to take over.
NOTE: The indefinite service brake hold
can be canceled if you, the driver, press
the accelerator pedal or the brake pedal,
or apply the parking brake.
The stationary vehicle braking feature
of the Fusion system’s Autonomous
Emergency Braking (AEB) is most useful
when approaching a line of stopped
traffic or a stalled vehicle that is not
immediately recognized by a distracted
driver. This includes conditions such as
while driving in limited-sight conditions,
at night, or in fog.

Figure 12 - IA and AEB
Figure 12 shows examples the messages
you may see on the integrated display when the Impact Alert (IA), or AEB, is activated.
Please verify with the vehicle Operator’s Manual for the actual audible and visual
indications your vehicle may display.
NOTE: As the driver, you should always be alert and ready to take over.
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Multi-lane Autonomous Emergency Braking (AEB)
See Figure 13. Not only can the Bendix® Fusion™ system potentially mitigate a forward
collision with an in-lane vehicle, it can also help you mitigate one when more than one
highway lane is blocked. Once a collision mitigation braking event begins and you, as
the driver, steer into an adjacent lane to avoid the forward vehicle, the Fusion system’s
Multi-lane AEB feature may continue to apply the brakes and sound an alert when
it detects another forward vehicle ahead posing a threat in the new lane of travel.
If, as a result of the Fusion system intervention, the vehicle comes to a full stop, the
foundation brakes may hold the vehicle at a stop indefinitely and you, the driver,
must take over. Indefinite service brake hold is not a parking brake and you must
take over and secure the vehicle. As the driver, you should use caution and manually
apply the brakes on or when exiting the vehicle. As the driver, you can manually
accelerate the vehicle by pressing down on the accelerator pedal.
NOTE: As the driver, you should always be alert and ready to take over.
NOTE: The indefinite service brake hold can be canceled if you, the driver, press the
accelerator pedal or the brake pedal, or apply the parking brake.
The Fusion system’s Multi-lane
AEB feature can help you, the
driver, mitigate both the first,
and potentially the second, crash
situation when more than one
traffic lane is blocked.

Figure 13 - Multi-lane AEB

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Following Distance Alerts (FDA)
FDAs are enabled above the minimum
speed threshold and are independent