Parking Aid

Parking Aid

Principles of Operation

Rear Parking Aid

The rear sensors are activated at all times when the vehicle is in reverse. The rear parking aid sensors detect objects approximately 2 m (6 ft) from the rear of the vehicle, 50 cm (1.6 ft) from the rear side of the vehicle and 16 cm (6 in) above the ground. The Parking Aid Module (PAM) calculates the distance to an object within the 170 degree semicircular area around the rear of the vehicle. A lower pitched variable rate warning tone is generated from the rear parking aid speaker. The warning tone rate of the rear parking aid speaker increases as the vehicle gets near an obstacle. When an object is detected within 25 cm (10 in) of the sensors, the warning tone becomes continuous.

The rear parking aid system can be disabled through a control in the message center.

Front Parking Aid

The front sensors are activated when the vehicle is in drive or reverse and the vehicle speed is greater than 0 km/h (0 mph) and less than 13 km/h (8 mph). The front parking aid sensors detect objects approximately 70 cm (27.6 in) from the front of the vehicle, 50 cm (1.6 ft) from the front side of the vehicle and 16 cm (6 in) above the ground. The PAM (Parking Aid Module) calculates the distance to an object within the 170 degree semicircular area around the front of the vehicle. A higher pitched variable rate warning tone is generated from the front parking aid speaker. The warning tone rate of the front parking aid speaker increases as the vehicle near an obstacle. When an object is detected within 25 cm (10 in) of the sensors, the warning tone becomes continuous.

The front parking aid system can be disabled through a control in the message center.

Network Communication

The PAM (Parking Aid Module) is on the Medium Speed Controller Area Network (MS-CAN) and can be diagnosed with a scan tool. The parking aid system is enabled when the ignition switch is in the RUN position and the drive or reverse gear is selected. The parking aid system is disabled if a fault is detected in one of the parking aid sensors, the parking aid speakers or the PAM (Parking Aid Module). This condition is indicated by the parking aid disabled warning in the message center.

The PAM (Parking Aid Module) communicates with the scan tool, the SJB (Smart Junction Box), the Audio Control Module (ACM) and the Instrument Cluster (IC) on the MS-CAN (Medium Speed Controller Area Network). For network messages used by the PAM (Parking Aid Module), refer to the following table:

Parking Aid Module (PAM) Network Communication Messages