Mazda Radar Cruise Control (MRCC)*; When Driving; Mazda Radar Cruise Control (MRCC)- Page 237

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When Driving

i-ACTIVSENSE

*Some models.

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 (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 Mazda Radar Cruise Control (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 Mazda Radar Cruise Control (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 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 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 Mazda Radar Cruise Control (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 Mazda Radar Cruise 

Control (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).

For the purposes of safety, switch the Mazda Radar Cruise Control (MRCC) system off 

when it is not being used.

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