Mazda CX-3 Owner's Manual page 281

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 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 traffi c is heavy and there is insuffi cient
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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 tyres could spin causing you to
   
lose vehicle control).
Long descending slopes (to maintain distance between vehicles, the system
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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.
If the vehicle is towed or you are towing something, switch the Mazda Radar Cruise
Control (MRCC) system off to prevent an incorrect operation.
WARNING
CAUTION
When Driving
i-ACTIVSENSE
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