Toyota FJ Cruiser Instructions For Adjusting And Operating page 140

2−4. Using other driving systems
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Sensor detection information
l Certain vehicle conditions and the surrounding environment may affect
the ability of a sensor to correctly detect an obstacle. Particular instances
where this may occur are listed below.
S There is dirt, snow or ice on a sensor.
S A sensor is frozen.
S A sensor is covered in any way.
S The vehicle is leaning considerably to one side.
S On an extremely bumpy road, on an incline, on gravel, or on grass.
S The vicinity of the vehicle is noisy due to vehicle horns, motorcycle
engines, air brakes of large vehicles, or other loud noises producing
ultrasonic waves.
S There is another vehicle equipped with parking assist sensors in the
vicinity.
S A sensor is coated with a sheet of spray or heavy rain.
S The vehicle is equipped with a fender pole or radio antenna.
S A bumper or sensor receives a strong impact.
S The vehicle is approaching a tall or right−angled curb.
S In harsh sunlight or intense cold weather.
S The area directly under the bumpers is not detected.
Objects lower than the sensors or thin stakes etc. may be detected ini−
tially, but as they draw closer, they may cease to be detected.
S A towing hitch is mounted to the vehicle.
S A non−genuine Toyota suspension (lowered suspension etc.) is
installed.
In addition to the examples above, there are instances in which, because of
their shapes, signs and other objects may be judged by a sensor to be closer
than they are.
l The shape of the obstacle may prevent a sensor from detecting it. Pay
particular attention to the following obstacles:
S Wires, fences, ropes, etc.
S Cotton, snow and other materials that absorb radio waves
S Sharply−angled objects
S Low obstacles
S Tall obstacles with upper sections projecting outwards in the direction
of your vehicle
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