display MAZDA MODEL 3 4-DOOR 2017 Service Manual

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 During headway control travel, the system accelerates and decelerates your vehicle in
conjunction with the speed of the vehicle ahead. However, if it is necessary to accelerate
for a lane change or if the vehicle ahead brakes suddenly causing you to\
close in on the
vehicle rapidly, accelerate using the accelerator pedal or decelerate using the brake
pedal depending on the conditions.
 While the Mazda Radar Cruise Contr ol (MRCC) system is in use, it does not cancel even
if the selector lever (automatic transaxle)/shift lever (manual trans\
axle) is operated and
any intended engine braking will not occur. If deceleration is required, lower the vehicle
speed setting or depress the brake pedal.
 The brake lights are illuminated while the Mazda Radar Cruise Control (MRCC)
automatic braking is operating. The Mazda Radar Cruise Contr ol (MRCC) warning light (amber) illuminates when the
system has a malfunction.
Refer to Warning Lights on page 4-24. The headway contr ol operation can be canceled and the system can be switched to only
cruise control. Refer to Cruise Control Function on page 4-115.
Mazda Radar Cruise Control (MRCC) Display Indication
The setting status and operation conditions of the Mazda Radar Cruise Control (MRCC)
system are indicated in the active driving display.
Vehicle ahead display
MRCC Distance
between vehicle
display
MRCC Set vehicle speed
Close Proximity Warning
If your vehicle rapidly closes in on the vehicle ahead because the vehic\
le applies the brakes
suddenly while you are traveling in headway control, the warning sound a\
ctivates and
the brake warning is indicated in the display. Always verify the safety of the surrounding
area and depress the brake pedal while keeping a safer distance from the\
vehicle ahead.
Additionally, always keep a safer distance from the vehicles behind you.
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Setting the System
CANCEL switchRES switch
OFF switch
switch switchMODE switch
SET- switch
SET+ switch
When the MODE switch is pressed, the Mazda Radar Cruise Control (MRCC) main
indication (white) turns on and the vehicle speed and the distance bet\
ween vehicles while in
headway control can be set.
NOTE
 When the ignition is switched to
ACC or OFF while the Mazda Radar Cruise Control
(MRCC) is ON, the Mazda Radar Cruise Control (MRCC) remains ON automatically. When the MODE switch is pressed while the Mazda Radar Cruise Control (MRCC)
system is turned on, the system switches to the cruise control function.
How to Set the Speed
1. Adjust the vehicle speed to the desired setting using the accelerator pe\
dal.
2. Headway control begins when the SET or SET switch is pressed. The set speed and
the inter-vehicle distance display filled with white lines are displayed. The Mazda Radar
Cruise Control (MRCC) set indication (green) is indicated simultaneously.
Travel status Display
During travel at constant speed
During travel under headway control
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NOTE
 If a vehicle ahead is detected while traveling at a constant speed, the \
vehicle-ahead
indication is displayed and headway control is performed. Additionally, when a vehicle
ahead is no longer detected, the vehicle-ahead indication turns off and \
the system
switches back to travel at constant speed.
 Headway control is not possible if the vehicle ahead is driving faster than the set s\
peed.
Adjust the system to the desired vehicle speed using the accelerator pedal.
How to Set the Distance Between Vehicles During Headway Control
The distance between vehicles is set to a shorter distance each time the\

switch is pressed.
The distance between vehicles is set to a longer distance by pressing th\
e
switch. The
distance-between-vehicles can be set to 4 levels; Long, medium, short, a\
nd extremely short
distance.
Distance-between-vehicles guideline (at 80 km/h (50 mph) vehicle speed) Display
Long (about 50 m (164 ft))
Medium (about 40 m (131 ft))
Short (about 30 m (98 ft))
Extremely short (about 25 m (82 ft))
NOTE
 The distance between vehicles differs depending on the vehicle speed, an\
d the slower the
vehicle speed, the shorter the distance. When the ignition is switched to ACC or OFF and then the engine is started again, the
system automatically sets the distance between vehicles to the previous setting.
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Changing the Set Vehicle Speed
Changing the set vehicle speed using the
SET switch
Press the SET
switch to accelerate.
Press the SET
switch to decelerate.
The set vehicle speed changes as follows
each time the SET switch is pressed.
Short press 1km/h (1 mph)
Long press 10 km/h (5 mph)
NOTE
For example, the set vehicle speed is
changed by pressing the SET switch four
times as follows:
The vehicle speed accelerates or
decelerates by 4 km/h (4 mph).
To accelerate using the accelerator
pedal
Depress the accelerator pedal and press
and release the SET
or SET switch at
the desired speed. If a switch cannot be
operated, the system returns to the set
speed when you release your foot from the
accelerator pedal.
CAUTION
The warnings and brake control do not
operate while the accelerator pedal is
depressed.
NOTE
 When accelerating using the SET
switch while in headway control, the set
vehicle speed can be adjusted but
acceleration is not possible. If there is
no longer a vehicle ahead, acceleration
continues until reaching the set vehicle
speed. Check the set vehicle speed by
viewing the set vehicle speed display in
the active driving display.
 When depressing the accelerator pedal,
the inter-vehicle distance display in the
active driving display changes to the
white-line display.
 The minimum settable speed is 30 km/h
(19 mph). If the set vehicle speed
reaches 30 km/h (19 mph) using the
switch operation, constant speed travel
is maintained at about 30 km/h (19
mph) even if the SET
switch is
pressed. The Mazda Radar Cruise
Control (MRCC) system is not canceled.
To Deactivate
The Mazda Radar Cruise Control (MRCC)
is deactivated when the OFF/CAN switch
is pressed twice.
When the system is temporarily
canceled
In the following cases, the Mazda Radar
Cruise Control (MRCC) is temporarily
canceled, the Mazda Radar Cruise Control
(MRCC) set indication (green) is turned
off, and the Mazda Radar Cruise Control
(MRCC) main indication (white) is turned
on.
 The OFF/CAN switch is pressed once. The brake pedal is depressed. The parking brake is applied.
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 (Automatic transaxle)
The selector lever is shifted to park (P),
neutral (N) or reverse (R). (Manual transaxle)
The shift lever is in the reverse (R)
position .
 In the following cases, the “Mazda
Radar Cruise Control Canceled”
indication is displayed and the beep
sounds one time.
 The vehicle speed decreases to less
than 25 km (16 mph). The DSC has operated. The TCS has operated for a certain
period of time. The Smart City Brake Support (SCBS)
has operated. The Smart Brake Support (SBS) has
operated. When traveling on a down slope for a
long period of time. There is a problem with the system. Any door is opened. The driver's seat belt is unfastened.
 (Manual transaxle)
 The shift lever is shifted to neutral
(N) for a certain period of time. The clutch is depressed for a certain
period of time. The engine stalls.
NOTE
 The Mazda Radar Cruise Control
(MRCC) system may be canceled during
rain, fog, snow or other inclement
weather conditions, or the front surface
of the radiator grille is dirty.
 If you have temporarily canceled the
Mazda Radar Cruise Control (MRCC),
you can return to your previously set
speed by pressing the RES switch and
after all of the operation conditions
have been met.
 If the Mazda Radar Cruise Contr ol
(MRCC) system is deactivated, the
system does not return to the previously
set speed even if the RES switch is
pressed.
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Shift-up/Shift-down Request Display (Manual Transaxle)
The shift-up or shift-down request display in the active driving display may be indicated
while the Mazda Radar Cruise Control (MRCC) is operating. When this occurs, shift gears
because the gear position is not appropriate.
Request Display
Shift up
Shift down
NOTE
 If the gears ar e not shifted up even though the shift-up request indication is displayed,
load will be applied to the engine and the Mazda Radar Cruise Control (MRCC) system
may be automatically canceled or engine damage could occur.
 If the gears are not shifted down even though the shift-down request indication is
displayed, the Mazda Radar Cruise Control (MRCC) system may be automatically
canceled or engine stalling could occur.
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Cruise Control Function
While this function is operating, the
headway control operation is canceled and
only the cruise control function operates.
The vehicle speed can be set more than
about 25 km/h (16 mph).
Use the cruise control function on
expressways and other highways which do
not require a lot of repeated acceleration
and deceleration.
WARNING
Do not use the cruise control function in
the following locations:
Otherwise, it could lead to an accident.
 Roads with sharp cur ves and where
vehicle traffic is heavy and there is
insufficient space between vehicles.
(Driving under these conditions
using the cruise control function is
not possible)
 Steep down slopes (Set speed may
be exceeded because sufficient
engine braking cannot be applied)
 Slippery roads such as ice or snow-
bound roads (Tires could spin
causing you to lose vehicle control)
Always drive carefully: The warnings and brake control
will not operate after the headway
control function is canceled and the
system is switched to only the cruise
control function. Depress the brake
pedal to decelerate according to the
surrounding conditions while keeping
a safer distance from the vehicle ahead
and always driving carefully.
Switching to cruise control function
When the MODE switch is pressed while
the Mazda Radar Cruise Control (MRCC)
system is turned on, the system switches to
the cruise control function.
When the system switches to the cruise
control function, the cruise main indication
(white) is displayed in the instrument
cluster and the active driving display to
notify the driver as follows:
 The Mazda Radar Cruise Control
(MRCC) set indication (green) or the
Mazda Radar Cruise Control (MRCC)
main indication (white) is turned off,
and the cruise main indication (white) is
turned on.
WARNING
Always turn off the cruise control
function when it is not in use:Leaving the cruise control function
turned on when it is not in use
is dangerous as it could operate
unexpectedly, resulting in an accident.
How to set the speed
Adjust the system to the desired vehicle
speed using the accelerator pedal.
When the SET
or SET switch is
pressed, the cruise set indication (green) is
turned on and headway control begins.
NOTE
 The system may not be able to maintain
the set speed constantly depending on
driving conditions such as steep up or
down slopes.
 The speed will continue incr easing
while the SET switch is pressed and
held. The speed will continue
decreasing while the SET
switch is
pressed and held.
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*Some models.
Lane-keep Assist System (LAS) & Lane Departure
Warning System (LDWS)*
The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) alerts the
driver that the vehicle may be deviating from its lane and it provides s\
teering assistance to
help the driver stay within the vehicle lanes.
The Forward Sensing Camera (FSC) detects the white lines (yellow line\
s) 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.
Refer to Forward Sensing Camera (FSC) on page
4-136.
Forward Sensing
Camera (FSC)
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The Lane-keep Assist System (LAS) & Lane Departure Warning System (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 60 km/h (37 mph). The ABS/TCS/DSC is operating. The DSC is turned off.
(If the DSC is turned of f while the system is operational, a warning beep is heard and the
system goes on standby.) The vehicle is making a sharp curve. The steering wheel is operated abruptly . The brake pedal is depressed. The width of a lane is excessively narrow or wide.
NOTE
 The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) does not
operate until the system detects white (yellow) lane lines on either t\
he left or right. 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 detect\
ed. The warning is
only for a lane deviation on the side that is being detected.
 If you take your hands off the steering wheel (not holding the steering\
wheel), the warning
sound is activated and an alert is indicated in the active driving displ\
ay.

If the steering wheel is held lightly, or depending on the road conditions, the system may
detect that you have released the steering wheel (not holding the steering wheel) even if
you are holding it, and display a message in the active driving display.
 The timing at which the lane departur e warning is activated and the steering wheel
operation assist is performed varies. The following settings for the Lane-keep Assist System (LAS) & Lane Departure Warning
System (LDWS) can be changed. Refer to Personalization Features on page 9-12.
 Steering operation assist operational/non-operational Cancel sensitivity (likelihood of steering assist)
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Vehicle lane line display
When the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS)
detects white (yellow) lines on both the left and right sides and beco\
mes operational, the
vehicle lane lines are indicated in the active driving display.
Auto cancel
In the following cases, the Lane-keep Assist System (LAS) & Lane Departure Warning
System (LDWS) is automatically canceled and the vehicle lane lines (s\
tand-by) are
indicated in the active driving display. In addition, when the Lane-keep Assist System (LAS)
& Lane Departure Warning System (LDWS) becomes operational, the system turns back
on automatically and the vehicle lane lines (operational) are indicate\
d in the active driving
display.
 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 p\
oor forward
visibility.
Auto cancel of warning/steering assist
When the following operations are performed, the Lane-keep Assist System (LAS) & Lane
Departure Warning System (LDWS) operation is automatically canceled. The Lane-keep
Assist System (LAS) & Lane Departure Warning System (LDWS) is automatically re-
enabled after the operation.
 The steering wheel is operated abruptly . The brake pedal is depressed. The accelerator pedal is suddenly depressed.
(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.
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