•  The radar sensor detects the target of a vehicle ahead and outputs to the vehicle control module as a target information signal.

•  The radar sensor emits millimeter waves^*1 forward from the front of the radar sensor and detects a target ahead of the vehicle (vehicle ahead) by the reflected waves. The radar sensor calculates the target position, distance from the vehicle, and relative speed based on the reflected waves and sends the information to the vehicle control module as a target information signal.

Note

•  Under the following conditions, the radar sensor may not be able to detect vehicles ahead or obstructions correctly and each system may not operate normally.

―  The rear surface of a vehicle ahead does not reflect radio waves effectively, such as an unloaded trailer or an automobile with a loading platform covered by a soft top, vehicles with a hard plastic tailgate, and round-shaped vehicles.

―  Vehicles ahead with low vehicle height and thus less area for reflecting radio waves.

―  Visibility is reduced due to a vehicle ahead casting off water, snow, or sand from its tires and onto your windshield.

―  The luggage compartment is loaded with heavy objects or the rear passenger seats are occupied.

―  Ice, snow, or soiling is on the front surface of the front emblem.

―  During inclement weather such as rain, snow, or sand storms.

―  When driving near facilities or objects emitting strong radio waves.

•  Under the following conditions, the radar sensor may not be able to detect vehicles ahead or obstructions.

―  The beginning and end of a curve.

―  Roads with continuous curves.

―  Narrow lane roads due to road construction or lane closures.

―  The vehicle ahead enters the radar sensor's blind spot.

―  The vehicle ahead is running abnormally due to accident or vehicle damage.

―  Roads with repeated up and down slopes.

―  Driving on poor roads or unpaved roads.

―  The distance between your vehicle and the vehicle ahead is extremely short.

―  A vehicle suddenly comes close such as by cutting into the lane.

•  If the battery power is weak, the system may not operate correctly.

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•  The radar sensor is installed on the interior side of the radiator grille.

•  By placing the radar sensor cover on the upper part of the radar sensor, decreased sensitivity of the radar sensor due to accumulated snow is controlled.

•  Millimeter waves are emitted at an angle of 14 °left and right of center (total 28 °) from the front of the radar sensor and objects can be detected up to approx. 200 m {656 ft}from the front of the vehicle.

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•  If the following malfunctions are detected, the radar sensor stops detecting the vehicle ahead.