Parking Aid Audible Alert

When the selector lever (automatic transmission) or gearshift lever (manual transmission) is in reverse and an object has been detected by the rear parking aid system, the IPC performs an arbitration function to prioritize the chime. The IPC built in logic determines when to mute the audio then sends a chime request message to the ACM (with 4.2 in (107 mm) display) or DSP (with 8 in (203 mm) touchscreen) to reduce the current audio volume and sound the parking aid chime through the rear audio system speakers. The alert tone frequency increases as the vehicle gets closer to an obstacle. When an object is detected within 12 in (30 cm) of the sensors, the alert tone becomes continuous. Objects detected outside the continuous tone area to the side of the vehicle generate a warning tone for 3 seconds. The warning tones are prioritized to the closest object.

The rear parking aid system standstill strategy provides audio warnings when the vehicle is stationary, with the transmission in reverse, and the detected obstacle is less than 12 in (30 cm) away from the rear bumper.