Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS)

The LAS & LDWS alerts the driver that the vehicle may be deviating from its lane and it provides steering assistance to help the driver stay within the vehicle lanes.‌

The Forward Sensing Camera (FSC) detects the white lines (yellow lines) of the vehicle lane in which the vehicle is traveling and if the system determines that the vehicle may deviate from its lane, it operates the electric power steering to assist the driver's steering operation. The system also alerts the driver by activating a lane departure WARNING sound, vibrating the steering wheel, and indicating an alert in the display. Use the system when you drive the vehicle on roads with white (yellow) lines such as expressways and highways.

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Forward Sensing Camera (FSC)


Forward Sensing Camera (FSC)


Forward Sensing Camera (FSC)

Refer to Forward Sensing Camera (FSC) on page 4-256.



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WARNING

WARNING

WARNING

Do not rely completely on the LAS & LDWS:

- The LAS & LDWS is not an automatic driving system. In addition, the system is not designed to compensate for a driver's lack of

CAUTION

, and over-reliance on the system could lead to an accident.

- The detection ability of the LAS & LDWS is limited. Always stay on course using the steering wheel and drive with care.

Do not use the LAS & LDWS in the following cases:

The system may not operate adequately according to the actual driving conditions, resulting in an accident.


- Driving on roads with tight curves.

- Driving under bad weather conditions (rain, fog, and snow).

- Slippery roads such as ice or snow-bound roads.

- Roads with heavy traffic and insufficient distance between vehicles.

- Roads with no white (yellow) lane lines.

- Narrow roads resulting from road construction or lane closures.

- The vehicle is driven on a temporary lane or section with a closed lane resulting from road construction where there may be multiple white (yellow) lane lines or they are interrupted.

- Vehicle is driven on roads other than expressways and highways.

- The tire pressures are not adjusted to the specified pressure.

- The vehicle is being used to tow a camper or boat trailer.

- Tires of a different specified size are used, such as an emergency spare tire.


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CAUTION

CAUTION

CAUTION

Heed the following

CAUTION

s so that the LAS & LDWS can operate normally.

- Do not modify the suspensions.

- Always use wheels of the specified type and size for the front and rear wheels. Consult an Authorized Mazda Dealer for tire replacement.


NOTE

- When the turn signal lever is operated for a lane change, the LAS & LDWS is automatically disabled. The LAS & LDWS becomes operational again when the turn signal lever is returned and the system detects white (yellow) lane lines while the vehicle is being driven normally within its vehicle lane.

- If the steering wheel, accelerator pedal, or brake pedal is operated abruptly and the vehicle moves close to a white (yellow) line, the system determines that the driver is making a lane change and the LAS & LDWS operation is temporarily canceled. The LAS & LDWS becomes operational again when the system detects white (yellow) lane lines while the vehicle is being driven normally within its vehicle lane.

- If the vehicle deviates from its lane repeatedly within a short period of time, the LAS & LDWS may not operate.

- When white (yellow) lane lines are not detected, the LAS & LDWS does not operate.

- Under the following conditions, the LAS & LDWS may not be able to detect white (yellow) lane lines correctly and it may not operate normally.

- If an object placed on the dashboard is reflected in the windshield and picked up by the camera.

- Heavy luggage is loaded in the luggage compartment or on the rear seat and the vehicle is tilted.


- The tire pressures are not adjusted to the specified pressure.

- Tires other than conventional tires are equipped.

- Vehicle is driven on an intersection or junction, or on a forked road.

- The white (yellow) lane lines are less visible because of dirt or fading/patchiness.

- A vehicle in front of your vehicle is running near a white (yellow) lane line making it less visible.

- A white (yellow) lane line is less visible because of bad weather (rain, fog, or snow).

- The vehicle is driven on a temporary lane or section with a closed lane resulting from construction where there may be multiple white (yellow) lane lines or they are interrupted.

- A misleading line is picked up on the road such as a temporary line for construction, or because of shade, lingering snow, or grooves filled with water.

- The surrounding brightness suddenly changes such as when entering or exiting a tunnel.

- The illumination of the headlights is weakened because of dirt or the optical axis is deviated.

- The windshield is dirty or foggy.

- The windshield, camera is fogged (water droplets).

- Back-light is reflected off the road surface.

- The road surface is wet and shiny after rain, or there are puddles on the road.

- The shade of a guardrail parallel to a white (yellow) lane line is cast on the road.

- The width of the driving lane is narrow or wide.

- Driving on roads with tight curves.

- The road is excessively uneven.

- The vehicle is shaken after hitting a road bump.

- There are 2 or more adjacent white (yellow) lane lines.

- There are various road markings or lane markings of various shapes near an intersection.

System Operation

System operation

When the ignition is switched ON, the system goes on standby.

Drive the vehicle in the center of the vehicle lane while the system is on standby. When all of the following conditions are met, and the system becomes operational.

- The engine is running.

- The vehicle speed is about 64 km/h (40 mph) or faster.

- The system detects white (yellow) lane lines on both the right and left sides.

- The driver is operating the steering wheel.

- The driving lane is neither narrow nor wide.

- The steering assist function of the Traffic Jam Assist (TJA) is not operating.


When the system becomes operational, the LAS & LDWS indication (white) is displayed on the multi-information display and active driving display.

Multi-information display (Basic display)

Instrument Cluster (Type A)

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Instrument Cluster (Type B)

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Multi-information display (i-ACTIVSENSE display)

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Active driving display*

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The LAS & LDWS goes on stand-by status in the following cases:

- The system cannot detect white (yellow) lane lines.

- The vehicle speed is less than about 56 km/h (35 mph).

- The ABS/TCS is operating.

- The TCS is turned off.

- The Off-Road Traction Assist is turned on.


- When Off-road mode is selected using Mazda intelligent Drive Select (Mi-Drive).

- The vehicle is making a sharp curve.

- The brake pedal is depressed.

- The steering wheel is operated abruptly.

- The width of a lane is excessively narrow or wide.

- The steering assist function of the TJA operated.


NOTE

- The LAS & LDWS does not operate until the system detects white (yellow) lane lines on either the left or right.

- When the system detects a white (yellow) lane line on one side only, the system will not operate the steering wheel operation assist and the WARNING for the lane line on the side that is not being detected. The steering wheel operation assist and the WARNING is only for a lane deviation on the side that is being detected.

- When the system determines that the driver is driving the vehicle with his or her hands off the steering wheel while the steering wheel operation assist is operating, and if the condition continues several times within a certain period of time, the WARNING sound is activated. The higher the number of times the steering wheel operation assist operates, the longer the period of time the WARNING sound is activated.

- The timing at which the lane departure WARNING is activated and the steering wheel operation assist is performed varies.

- The following settings for the LAS & LDWS can be changed. Refer to the Settings section in the Mazda Connect Owner's Manual.

- Steering operation assist operational/non-operational

- (Mazda Connect (Type A) only)

Cancel sensitivity (likelihood of steering assist)

Vehicle lane line display

When the LAS & LDWS goes on standby, the vehicle lane lines are indicated on the

multi-information display and the active driving display. When white (yellow) lines on both the left and right sides are detected and the system becomes operational, the vehicle lane lines indicated on the multi-information display and the active driving display change to white.


(Stand-by status)

Multi-information display (Basic display)

Instrument Cluster (Type A)

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Instrument Cluster (Type B)

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Multi-information display (i-ACTIVSENSE display)

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Active driving display*

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(Operational status)

Multi-information display (Basic display)

Instrument Cluster (Type A)

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Instrument Cluster (Type B)

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Multi-information display (i-ACTIVSENSE display)

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Active driving display*

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NOTE

When only one side of the white (yellow) lines is detected, only the detected vehicle lane line indicated on the multi-information display and the active driving display changes to white.

Auto cancel

In the following cases, the LAS & LDWS is automatically canceled, the LAS & LDWS WARNING indication (amber) turns on, and an alert is displayed. When the LAS & LDWS become operational, the system turns back on automatically.


- The temperature inside the camera is high or low.

- The windshield around the camera is foggy.

- The windshield around the camera is blocked by an obstruction, causing poor forward visibility.

Auto cancel of WARNING/steering assist

When the following operations are performed, the LAS & LDWS operation is canceled automatically. The LAS & LDWS resumes automatically after the operation.

- The steering wheel is operated abruptly.

- The brake pedal is operated.

- The accelerator pedal is operated.

(Mazda Connect (Type A) only)

(To cancel the automatic sensitivity cancel function, deselect “Cancel sensitivity” in the personalization features setting.)

- The turn signal lever is operated.

- The vehicle crosses a lane line.


NOTE

- After the operation, the LAS & LDWS operation may not operate for a period of 5 seconds at the most until the lane lines are detected.

- Under the following conditions, the LAS & LDWS cancels the WARNING/steering assist automatically.

- The TCS OFF switch is pressed to cancel the TCS.

- The Off-Road Traction Assist switch is pressed to turn on the Off-Road Traction Assist.

- When Off-road mode is selected using Mazda intelligent Drive Select (Mi-Drive).

Steering wheel operation assist OFF (non-operational)

The steering wheel operation assist for the LAS & LDWS can be turned off. However, when driving the vehicle while the TJA function is in use, the steering wheel operation assist turns on automatically.

When the steering wheel operation assist has been turned off, only the lane departure WARNING is operational.

Refer to the Settings section in the Mazda Connect Owner's Manual.

System operation

Drive the vehicle in the center of the driving lane while the LAS & LDWS OFF indicator light in the instrument cluster is turned off.

The system becomes operational when all of the following conditions are met.

- The engine is running.


- The vehicle speed is about 64 km/h (40 mph) or faster.

- The system detects white (yellow) lane lines on both the right and left sides or on either side.

- The vehicle is driven on a straight road or road with gentle curves.

- The steering assist function of the TJA is not operating.

The LAS & LDWS goes on stand-by status in the following cases:

- The vehicle speed is less than about 56 km/h (35 mph).

- The system cannot detect white (yellow) lane lines.

- The vehicle is making a sharp curve.

- The vehicle is making a curve at an inappropriate speed.

- The steering assist function of the TJA operated.


NOTE

- The LAS & LDWS remains on stand-by until it detects white (yellow) lines on both the left and right sides, or on either side.

- When the system detects a white (yellow) lane line on one side only, the system will not activate WARNINGs for the lane line on the side that is not being detected.

- (Mazda Connect (Type A) only)

The distance and WARNING sensitivity (likelihood of a WARNING) which the system uses to determine the possibility of a lane departure can be changed.

Refer to the Settings section in the Mazda Connect Owner's Manual.

Vehicle lane line display

When the LAS & LDWS becomes operational while on standby, the vehicle lane lines are displayed in the multi-information display. The system changes to operational status display when the system detects a white (yellow) line on either the left or right.

(Stand-by status)

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(Operational status)

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NOTE

When only one side of the white (yellow) lines is detected, only the detected vehicle lane line indicated on the multi-information display changes to white.

Auto cancel

In the following cases, the LAS & LDWS is automatically canceled, the LAS & LDWS WARNING indication (amber) turns on, and an alert is displayed. When the LAS & LDWS become operational, the system turns back on automatically.

- The temperature inside the camera is high or low.

- The windshield around the camera is foggy.

- The windshield around the camera is blocked by an obstruction, causing poor forward visibility.

Auto cancel of WARNINGs

When the following operations are performed, the LAS & LDWS determines that the driver intends to make a lane change and the system operation is canceled automatically. The LAS & LDWS resumes automatically after the operation.

- The steering wheel is operated abruptly.

- The brake pedal is depressed.

- The accelerator pedal is depressed.

(Mazda Connect (Type A) only)

(To cancel the automatic sensitivity cancel function, deselect “WARNING sensitivity” in the personalization features setting.)

- The turn signal lever is operated.

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- The vehicle crosses a lane line.

Steering Wheel Operation Assist

When the system determines that the vehicle might be deviating from its lane, the steering wheel operation assist operates.

The system notifies the driver that it provided steering wheel operation assistance on the multi-information display and the active driving display.


Multi-information display (Basic display)

Instrument Cluster (Type A)

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Instrument Cluster (Type B)

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Multi-information display (i-ACTIVSENSE display)

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Active driving display*

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NOTE

- When the driver operates the steering wheel while the steering wheel operation assist is operating, the steering wheel operation assistance is canceled.

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Lane Departure WARNING

If the system determines that the vehicle may deviate from its lane, the lane departure WARNING is activated and the direction in which the system determines that the vehicle may deviate is indicated in the multi-information display and the active driving display.

For vehicles equipped with the multi-information display, the direction which the system determined that the vehicle may be deviating from its lane is indicated in the

multi-information display.

For vehicles equipped with the active driving display, the color of the lane line in the direction which the system determined that the vehicle may be deviating from its lane changes from white to amber and the vehicle lane line flashes.

Multi-information Display Active Driving Display

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NOTE

- If you have set the lane departure WARNING sound to the beep sound/rumble sound (Mazda Connect (Type A) only)*1 setting, the WARNING sound may not be heard depending on the surrounding noise conditions.

- If you have set the lane departure WARNING system to the steering wheel vibrations setting, the vibration may not be felt depending on the road surface conditions.

- When the setting for the steering operation assist is changed to operational, the WARNINGs can be set to activate/not activate. (If the setting for the steering operation assist is changed to non-operational, the WARNINGs cannot be set to non-operational.)

Refer to the Settings section in the Mazda Connect Owner's Manual.

- The LAS & LDWS can be changed to the following settings regardless of whether the steering operation assist has been set to operational/non-operational. Always check the setting status when driving the vehicle and make setting changes if necessary.

Refer to the Settings section in the Mazda Connect Owner's Manual.

- Steering wheel vibration: Strong/weak

- WARNING sound volume

- Types of WARNINGs (steering wheel vibration/beep sound/rumble sound (Mazda Connect (Type A) only)*1)

*1 A rumble strip is a series of grooves in the road pavement surface positioned at specific intervals, and when the vehicle passes over it a vibration and rumble sound is produced which alerts the driver that the vehicle is departing from the lane.


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Rumble Groove


Rumble Groove


Rumble Groove

The rumble sound is a reproduction of the sound which occurs when a vehicle passes over a rumble strip.

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System Canceling

When the LAS & LDWS is turned off, press the LAS & LDWS OFF switch.

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The LAS & LDWS OFF indicator light turns on.


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NOTE

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- When driving the vehicle while the TJA function is in use, the LAS & LDWS turns on automatically.

- In the following cases, the LAS & LDWS is canceled automatically and the LAS & LDWS OFF indicator light turns on. Have your vehicle inspected at an Authorized Mazda Dealer.

- There is a malfunction in the power steering.

- There is a malfunction in the TCS.

- There is a malfunction in the Forward Sensing Camera (FSC).

- When the ignition is switched OFF, the system status before it was turned off is maintained. For example, if the ignition is switched OFF with the lane-keep system operable, the system will be operable when the ignition is switched ON the next time.

When the LAS & LDWS is turned off, the vehicle lane line indication in the


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multi-information display and the active driving display turn off.


Traffic Jam Assist (TJA)

(Page 124)

Traffic Jam Assist (TJA)* ‌The TJA is a system which consists of a headway control function and a steering assist function f...

Advanced Smart City Brake Support (Advanced SCBS)

(Page 126)

Advanced Smart City Brake Support (Advanced SCBS)* ‌Forward Sensing Camera (FSC)Forward Sensing Camera (FSC)Forward Sensing Camera (FSC)The Adva

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