Detection issues

The radar sensor has a limited field of vision. In some situations it may not detect vehicles at all or detect a vehicle later than expected.
Detection issues can occur:

• When driving on a different line than the vehicle in front.

• With vehicles that edge into your lane. These vehicles can only be detected once they have moved fully into your lane.

• There may be issues with the detection of vehicles in front when driving into and coming out of a bend or curve in the road.
In these cases ACC may brake late or unexpectedly. The driver should stay alert and intervene when necessary.
If the front end of the vehicle is hit or damaged, the radar sensing zone may be altered causing missed or false vehicle detections. Check with your authorized dealer to have the ACC radar checked for proper coverage and operation.
See also:
Changing the tires
If you get a flat tire while driving, do not apply the brake heavily.
Instead, gradually decrease your speed. Hold the steering wheel firmly
and slowly move to a safe place on the side of the road. ...
Brake fluid
The fluid level will drop slowly as
the brakes wear, and will rise when
the brake components are replaced.
Fluid levels between the MIN and
MAX lines are within the normal
operating range; ...
Reverse sensing system
The reverse sensing system (RSS) sounds a tone to warn the driver of
obstacles near the rear bumper when the R (Reverse) is selected and the
vehicle is moving at speeds less than 3 mph (5 km/h). T ...
