Mazda CX-5 2018 Owner's Manual page 313

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 MRCC with Stop & Go function system is in use, it does not cancel even if the
•
selector lever is operated and any intended engine braking does not occur. If deceleration
is required, lower the set speed or depress the brake pedal.
The sound of the automatic brakes operating may be heard, however, it does not indicate
•
a problem.
The brake lights turn on while the MRCC with Stop & Go function automatic braking is
•
operating, however, they may not turn on while the vehicle is on a downslope at the set
vehicle speed or travelling at a constant speed and following a vehicle ahead.