Mazda CX-3 2018 Owner's Manual page 219

Mazda Radar Cruise Control (MRCC)
The MRCC system is designed to maintain headway control
speed using a radar sensor (front) to detect the distance to a vehicle ahead, and by presetting
the vehicle speed between 30 km/h (19 mph) and 145 km/h (90 mph), the driver is freed
from having to constantly use the accelerator or brake pedals.
*
1 Headway Control: Control of the distance between your vehicle and the vehicle ahead
detected by the MRCC system.
Additionally, if your vehicle starts closing in on the vehicle ahead because, for example, the
vehicle ahead brakes suddenly, a warning sound and a warning indication in the display are
activated simultaneously to alert you to maintain a sufficient distance between the vehicles.
Use the MRCC system on expressways and other highways which do not require a lot of
repeated acceleration and deceleration.
WARNING
Do not rely completely on the MRCC system and always drive carefully:
The MRCC system is designed to reduce load on the driver, and although it maintains a
constant vehicle speed, or specifically, 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
sufficiently 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 safer distance from vehicles ahead or on-coming vehicles.
Do not use the MRCC system in the following locations. Otherwise, it could lead to an
accident:
Roads with sharp curves and where vehicle traffic is heavy and there is insufficient space
between vehicles. Roads where frequent and repetitive acceleration and deceleration occur
(Driving under these conditions using the MRCC system is not possible).
When entering and exiting interchanges, service areas, and parking areas of highways (If
you exit a highway while headway control is in use, the vehicle ahead will no longer be
tracked and your vehicle may accelerate to the set speed).
Slippery roads such as ice or snow-bound roads (The tires could spin causing you to lose
vehicle control).
Long descending slopes (to maintain distance between vehicles, the system automatically
and continuously applies the brakes which could result in the loss of brake power).
CX-3_8GA5-EA-17F_Edition1
When Driving
i-ACTIVSENSE
*
*1
according to the vehicle
*Some models.
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