NOTE
The BSM will operate when all of the following conditions are met:
The ignition is switched ON.
The BSM switch is pressed and the BSM OFF indicator light in the instrument cluster is
turned off.
The vehicle speed is about 10 km/h (6.3 mph) or faster.
The BSM will not operate under the following circumstances.
The vehicle speed falls below about 10 km/h (6.3 mph) even though the BSM OFF
indicator light is turned off.
The shift lever (manual transmission)/selector lever (automatic transmission) is shifted
to reverse (R) and the vehicle is reversing.
In the following cases, the BSM OFF indicator light turns on and operation of the system
is stopped. If the BSM OFF indicator light re mains illuminated, have the vehicle inspected
at an Authorized Mazda Dealer as soon as possible.
Some problem with the system including the BSM warning lights is detected.
A large deviation in the installation position of a radar sensor (rear) on the vehicle has
occurred.
There is a large accumulation of snow or ice on the rear bumper near a radar sensor
(rear). Remove any snow, ice or mud on the rear bumper.
Driving on snow-covered roads for long periods.
The temperature near the radar sensors (rear) becomes extremely hot due to driving for
long periods on slopes during the summer.
The battery voltage has decreased.
Under the following conditions, the radar sensors (rear) cannot detect target objects or it
may be difficult to detect them.
A vehicle is in the detection area at the rear in an adjacent driving lane but it does not
approach. The BSM determines the condition based on radar detection data.
A vehicle is traveling alongside your vehicle at nearly the same speed for an extended
period of time.
Vehicles approaching in the opposite direction.
A vehicle in an adjacent driving lane is attempting to pass your vehicle.
A vehicle is in an adjacent lane on a road with extremely wide driving lanes. The
detection area of the radar sensors (rear) is set at the road width of expressways.
In the following cases, the activation of the BSM warning lights and the warning beep
may not occur or they may be delayed.
A vehicle makes a lane change from a driving lane two lanes over to an adjacent lane.
Driving on steep slopes.
Crossing the summit of a hill or mountain pass.
The turning radius is small (making a sharp turn, turning at intersections).
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When there is a difference in the height between your driving lane and the adjacent
lane.
Directly after the BSM system becomes operable by changing the setting.
If the road width is extremely narrow, vehicles two lanes over may be detected. The
detection area of the radar sensors (rear) is set according to the road width of
expressways.
The BSM warning lights may turn on in reaction to stationary objects on the road or the
roadside such as guardrails, tunnels, sidewalls, and parked vehicles.
Objects such as guardrails and concrete walls
running alongside the vehicle.Places where the width between guardrails or
walls on each side of the vehicle narrows.
The walls at the entrance and exits of tunnels,
turnouts.
A BSM warning light may flash or the warning beep may be activated several times when
making a turn at a city intersection.
Turn off the BSM while pulling a trailer or wh
ile an accessory such as a bicycle carrier is
installed to the rear of the vehicle. Otherwise, the radar’s radio waves will be blocked
causing the system to not operate normally.
In the following cases, it may be difficult to view the illumination/flashing of the BSM
warning lights equipped on the door mirrors.
Snow or ice is adhering to the door mirrors.
The door glass is fogged or covered in snow, frost or dirt.
The system switches to the Rear Cross Traffi c Alert (RCTA) function when the shift lever
(manual transmission) or the selector lever (automatic transmission) is shifted to the
reverse (R) position.
Refer to Rear Cross Traffic Alert (RCTA) on page 4-98.
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