Rear Cross Traffic Alert System Components

The side blind zone alert system is made up of the following components:

• Left side object sensor module
• Right side object sensor module
• Visual Display Icons located on the infotainment display screen
• Audio system chime

Side Object Sensor Modules 

The side object sensor modules are located on each side of the vehicle behind the rear fascia and are not directly visible from outside the vehicle. The sensors use radar to determine the presence of moving objects nearby. The scantool is able to communicate with both the left and right side modules. The left side module acts as a serial data pass-through to the right side module.

When a moving object is detected in the left rear cross traffic zone while the engine is running and the transmission in reverse, the side object sensor module sends a serial data message to the radio and memory seat module to provide alerts. Each sensor is supplied B+ and ground.

Display Icons 

The rear cross traffic alert system visual alert display consists of two visual icons, one on each side of the infotainment display screen, that are used to alert the driver on rear cross traffic from each side of the host vehicle respectively.

Audio Notification 

The chime location will be in the left rear for left rear cross traffic alert and right rear for right rear cross traffic alert. The radio system response will be to generate 3 chimes in the appropriate speaker.