Lexus 2013 IS250, Owner'S Manual

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4-5. Using the driving support systems
4
Driv
in
g
IS250_EE(OM53B11E)

Conditions under which the Rear Crossing Traffic Alert function will not detect a
vehicle
The Rear Crossing Traffic Alert function is not designed to detect the following
types of vehicles and/or objects.

Small motorcycles, bicycles, pedestrians etc.
*

Vehicles approaching from directly behind

Guardrails, walls, signs, parked vehicles and similar stationary objects
*

Vehicles moving away from your vehicle

Vehicles approaching from the parking spaces next to your vehicle
*

Vehicles backing up in the parking space next to your vehicle
*
: Depending on conditions, detection of a vehicle and/or object may occur.

Conditions under which the Rear Crossing Traffic Alert function may not func-
tion correctly
The Rear Crossing Traffic Alert function may not detect vehicles correctly in the
following conditions:

During bad weather such as heavy rain, fog, snow etc.

When ice or mud etc. is attached to the rear bumper

When multiple vehicles approach continuously

Shallow angle parking

When a vehicle is approaching at high speed

When parking on a steep incline, such as hills, a dip in the road etc.

Directly after the BSM main switch is set to on

When your vehicle is towing a trailer

Directly after the engine is started with the BSM main switch on

Vehicles that the sensors cannot detect
because of obstacles