The rear cross traffic alert functions when your vehicle is in reverse.
It can detect other vehicles approaching from the right or left rear of the vehicle. It uses radar sensors to alert the driver of the other vehicle’s existence through flashing the outside rear view mirror indicators and sounding a buzzer.

Caution
Cautions regarding the use of the system
The driver is solely responsible for safe driving. Always drive safely, taking care to observe your surroundings.
The rear cross traffic alert function is only an assist and is not a replacement for careful driving. The driver must be careful when backing up, even when using the rear cross traffic alert function. The driver’s own visual confirmation of behind you and your vehicle is necessary and be sure there are no pedestrians, other vehicles, etc. Before backing up. Failure to do so could cause death or serious injury.
According to conditions, the system may not function correctly. Therefore the driver’s own visual confirmation of safety is necessary.
The rear cross traffic
alert function
The rear cross traffic alert function detection areasGlossary of sae and toyota terms
This glossary lists all sae-j1930 terms and abbreviations
used in this manual in compliance with sae
recommendations, as well as their toyota equivalents.
...
Automatic transmission
Select the shift position
depending on your purpose
and situation.
Shift position purpose
and functions
P - Parking the vehicle/
starting the engine
R - Reversing
N - Neutral
D - Normal driving*1
S - S mode driving*2
*1:Shifting to the D position allows
the system to select a gear suitable
for ...
Parking brake cable
Components
Removal
Remove rear console box sub-assembly
Remove the rear console box (see page ip-16).
Hint:
Refer to the procedures from the removal of the no.
1 Console upper panel garnish up until the removal
of the rear console box sub-assembly.
Loosen lock nut and no. ...