Circuit/System Description

WARNING: This page is about a different car, the 2006 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.

The object alarm detection system senses how close the vehicle is to an object. The distance is determined by the 4 ultrasonic sensors located in the rear bumper. The object detection system operates only at speeds less than 5 mph (8 km/h), which make parking easier and helps you avoid colliding with objects such as parked vehicles. The object detection system will notify the driver when backing up while parking at speeds less than 5 mph (8 m/h). The object detection system will use serial data communications to communicate with the radio to chime through the speakers along with the park assist indicators for notification. This DTC will only set if the vehicle does not come equipped with a radio from the factory then the object alarm detection system will use an external dedicated speaker.