warning MAZDA MODEL 3 4-DOOR 2014 Owners Manual

4–91
When Driving
Mazda Radar Cruise Control (MRCC)
Mazda Radar Cruise Control (MRCC)
The Mazda Radar Cruise Control (MRCC) system is designed to maintain headway control *1
according to the vehicle speed using a radar sensor to detect the distan\
ce to a vehicle ahead,
and by presetting the vehicle speed between 30 km/h (19 mph) and 145 k\
m/h (90 mph) the
driver is freed from having to constantly use the accelerator or brake p\
edals.
*1 Headway Control: Control of the distance between your vehicle and the ve\
hicle ahead detected by the Mazda Radar Cruise Control (MRCC) system.
Additionally, if your vehicle starts closing in on the vehicle ahead because, for ex\
ample, the
vehicle ahead brakes suddenly, a warning sound and a warning indication in the display are
activated simultaneously to alert you to maintain a suffi cient distance between the vehicles.
Use the Mazda Radar Cruise Control (MRCC) system on expressways and ot\
her highways
which do not require a lot of repeated acceleration and deceleration.
WARNING
Do not rely completely on the Mazda Radar Cruise Control (MRCC) system and always
drive carefully: The Mazda Radar Cruise Control (MRCC) system is designed to reduce load on the
driver, and although it maintains a constant vehicle speed, or specifi cally, it maintains
a constant distance between your vehicle and the detected vehicle ahead according to
the vehicle speed, the system has detection limitations depending on the type of vehicle
ahead and its conditions, the weather conditions, and the road conditions. Additionally,
the system may be unable to decelerate suffi ciently to avoid hitting the vehicle ahead
if the vehicle ahead applies the brakes suddenly or another vehicle cuts into the driving
lane, which could result in an accident. Always verify the safety of the surrounding area
and depress the brake pedal or accelerator pedal while keeping a safe distance from
vehicles ahead or on-coming vehicles.

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4–93
When Driving
Mazda Radar Cruise Control (MRCC)
 y In the following cases, the warnings may not activate even if your vehic\
le starts closing
in on the vehicle ahead.
 y You are driving at the same speed as the vehicle ahead. y Directly after the Mazda Radar Cruise Control (MRCC) system has been set. y When the accelerator pedal is depressed or directly after the accelerator pedal is
released.
 y Another vehicle cuts into the driving lane.
 y The following are not detected as physical objects.
 y Vehicles approaching in the opposite direction y Pedestrians y Stationary objects (stopped vehicles, obstructions)
 y If a vehicle ahead is traveling at an extremely low speed, the system may not detect it
correctly.
 y During headway control travel, do not set the system on two-wheeled vehicles such as
motorcycles and bicycles.
 y Do not use the Mazda Radar Cruise Control (MRCC) system under conditions in which
the close proximity warnings are frequently activated.
 y 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.
 y While the Mazda Radar Cruise Control (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.
 y The brake lights are illuminated while the Mazda Radar Cruise Control (MRCC)
automatic braking is operating, however, they may not be illuminated while the vehicle is
on a down slope at the set vehicle speed or traveling at a constant spee\
d and following a
vehicle ahead.
 y The Mazda Radar Cruise Control (MRCC) warning light (amber) fl ashes when the
system has a malfunction.
 Refer to Warning Lights on page 4-22 .
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4–94
When Driving
Mazda Radar Cruise Control (MRCC)
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 vehicle
applies the brakes suddenly while you are
traveling in headway control, the warning
sound activates 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 safe distance from the vehicle ahead.
Additionally, always keep a safe distance
from the vehicles behind you.
NOTE
When the active driving display is closed,
only the warning sound activates to alert.
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4–97
When Driving
Mazda Radar Cruise Control (MRCC)
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 the
switch. The distance-between-vehicles can
be set to 4 levels; Long, medium, short,
and extremely short distance.
Distance-between- vehicles guideline
(at 80 km/h (50 mph) vehicle speed) Indication on 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
 y  The distance between vehicles differs
depending on the vehicle speed, and the
slower the vehicle speed, the shorter the
distance.
 y 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.
Changing the Set Vehicle Speed
Changing the set vehicle speed using the
SET
/ 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
/ SET switch is pressed.
Short press 1 km/h (1 mph)
Long press 10 km/h (5 mph)
NOTE
For example, the set vehicle speed is
changed by pressing the SET
/ SET
switch four times as follows:
The vehicle speed accelerates or
decelerates by 4 km/h (4 mph).
To accelerate using 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.
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*Some models.4–10 0
When Driving
Cruise Control
Cruise Control *
With cruise control, you can set and automatically maintain any speed of \
more than about
25 km/h (16 mph).
WARNING
Do not use the cruise control under the following conditions: Using the cruise control under the following conditions is dangerous and could result in
loss of vehicle control.


4–101
When Driving
Cruise Control
Cruise Main Indicator Light (Amber)/Cruise Set Indicator
Light (Green)
The indicator light has two colors.
Cruise Main Indicator Light (Amber)
The indicator light illuminates amber
when the cruise control system is
activated.
Cruise Set Indicator Light (Green)
The indicator light illuminates green when
a cruising speed has been set.
Activation/Deactivation
To activate the system, press the ON
switch. The cruise main indicator light
(Amber) illuminates.
To deactivate the system, press the OFF
switch.
The cruise main indicator light (Amber)
turns off.
WARNING
Always turn off the cruise control system
when it is not in use: Leaving the cruise control system in an
activation-ready state while the cruise
control is not in use is dangerous as
the cruise control could unexpectedly
activate if the activation button is
accidentally pressed, and result in loss
of vehicle control and an accident.
To Set Speed
1. Activate the cruise control system by pressing the ON switch. The
cruise main indicator light (Amber)
illuminates.
2. Accelerate to the desired speed, which must be more than 25 km/h (16 mph).
3. Set the cruise control by pressing the SET
or SET switch at the desired
speed. The cruise control is set at the
moment the SET
or SET switch is
pressed. Release the accelerator pedal
simultaneously. The cruise set indicator
light (Green) illuminates.
NOTE
 y  Release the SET or SET switch at
the desired speed, otherwise the speed
will continue increasing while the SET
switch is pressed and held, and
continue decreasing while the SET
switch is pressed and held (except when
the accelerator pedal is depressed).
 y  On a steep grade, the vehicle may
momentarily slow down while
ascending, or speed up while
descending.
 y Cruise control will cancel if the vehicle
speed decreases below 21 km/h (13
mph) when cruise is activated, such as
when climbing a steep grade.
 y Cruise control may cancel at about 15
km/h (9 mph) below the preset speed,
such as when climbing a long, steep
grade.
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*Some models.4–104
When Driving
Tire Pressure Monitoring System
Tire Pressure Monitoring System *
The Tire Pressure Monitoring System (TPMS) monitors the air pressure of all\
four tires. If
the air pressure of one or more tires is too low, the system warns the driver by indicating the
tire pressure monitoring system warning light in the instrument cluster \
and operating a beep
sound. The system monitors the tire pressures indirectly using the data sent fr\
om the ABS
wheel speed sensors.
To allow the system to operate correctly, the system needs to be initialized with the specifi ed
tire pressure (value on the tire pressure label). Follow the procedure\
and perform the
initialization.
Refer to Tire Pressure Monitoring System Initialization on page 4-107 .
The warning light fl ashes when the system has a malfunction.
Refer to Warning Lights on page 4-22 .
ABS wheel speed sensor
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4–106
When Driving
Tire Pressure Monitoring System
NOTE
Because this system detects slight changes in tire conditions, the timing of the warning may
be faster or slower in the following cases:
 y The size, manufacturer, or the type of tires is different from the specifi cation. y The size, manufacturer, or the type of a tire is different from the others, or the level of tire
wear is excessively different between them.
 y A run-fl at tire, studless tire, snow tire, or tire chains are used. y An emergency tire is used (The tire pressure monitoring system warning light may fl ash
and then continue illuminating).
 y A tire is repaired using the puncture tire repair kit. y The tire pressure is excessively higher than the specifi ed pressure, or the tire pressure is
suddenly lowered for some reason such as a tire burst during driving.
 y The vehicle speed is lower than about 15 km/h (9.3 mph) (including wh\
en the vehicle is
stopped), or the drive period is shorter than 5 minutes.
 y The vehicle is driven on an extremely rough road or a slippery, icy road. y Hard steering and rapid acceleration/deceleration are repeated such as during
aggressive driving on a winding road.
 y Load on the vehicle is applied to a tire such as by loading heavy luggage to one side of
the vehicle.
 y System initialization has not been implemented with the specifi ed tire pressure.
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4–107
When Driving
Tire Pressure Monitoring System
Tire Pressure Monitoring System Initialization
In the following cases, system
initialization must be performed so that the
system operates normally.
 y  A tire pressure is adjusted. y Tire rotation is performed. y A tire or wheel is replaced. y The battery is replaced or completely
drained.
 y  The tire pressure monitoring system
warning light is illuminated.
Initialization method
1. Park the car in a safe place and fi rmly
apply the parking brake.
2. Let the tires cool, then adjust the tire pressure of all four (4) tires to the
specifi ed pressure indicated on the tire
pressure label located on the door jamb
of the driver's door (door open).
Refer to Tires on page 9-10 .
3. Switch the ignition ON.
4. While the vehicle is parked, press and hold the tire pressure monitoring
system set switch and verify that
the tire pressure monitoring system
warning light in the instrument cluster
fl ashes twice and a beep sound is heard
once.
CAUTION
If the system initialization is performed
without adjusting the tire pressure,
the system cannot detect the normal
tire pressure and it may not illuminate
the tire pressure monitoring system
warning light even if a tire pressure is
low, or it may illuminate the light even
if the pressures are normal.
The system initialization will not be
performed if the switch is pressed while
the vehicle is being driven.
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4–10 8
When Driving
Blind Spot Monitoring (BSM) System
Blind Spot Monitoring (BSM) System
The Blind Spot Monitoring (BSM) system is designed to assist the drive\
r by monitoring
blind spots on both sides of the vehicle to the rear in certain situatio\
ns such as when
changing lanes on roads and freeways or reversing the vehicle from a par\
king garage.
The Blind Spot Monitoring (BSM) System consists of the Blind Spot Moni\
toring (BSM)
and Rear Cross Traffi c Alert (RCTA).
WARNING
Do not rely completely on the Blind Spot Monitoring (BSM) system. Always look over
your shoulder before changing lanes or reversing the vehicle from a parking garage:
The Blind Spot Monitoring (BSM) system can assist the driver in confi rming the safety of
the surroundings but is not a complete substitute. The driver is responsible for assuring
lane changes and other maneuvers. Always pay attention to the direction in which the
vehicle is traveling and the vehicle's surroundings.
NOTE
 y The detectability of the radar sensors has its limitations. The Blind Sp\
ot Monitoring
(BSM) System may not operate properly under the following conditions:
 y Ice, snow, or soil adheres to the rear bumper surface around the radar sensors. y During adverse weather conditions such as rain or snow, or under conditions where
water is sprayed.
 y The rear bumper area around the radar sensors is blocked by foreign material (such as
stickers or a bicycle carrier).
 y The radar sensors do not detect human, animal, shopping cart, bicycle, o\
r static objects
such as fences.
 y The radar sensors may not detect all types of vehicles around your vehicle, especially the
following types of vehicles:
 y Motorcycles y Vehicles with body shapes that radar may not refl ect such as a fl atbed trailer with no
cargo.
 y Vehicles with lower body height such as sports cars.
 y Although the system may detect objects on the road side such as parked vehicles or
guardrails and operate the warning light/beep, it does not indicate a malfun\
ction.
 y If the vehicle is driven on a road with less traffi c and few vehicles that the radar sensors
can detect, the system may pause (the Blind Spot Monitoring (BSM) OFF\
indicator light
in the instrument cluster fl ashes). However, it does not indicate a malfunction.
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