It is a feature in the Chevy P-30 motor home. The feature is a system that automatically applies the brakes when done parking the vehicle. This allows for easier parking and also prevents forgetting to put the parking brake on.
This system will apply the brakes automatically when the car is parked. This helps in situations if we forget to put on the brake and prevent the car from sliding.
P30 refers to the P30 style Chevrolet chassis motor home. The auto parking system is related to the feature that automatically applies the brakes. However it is prone to failure while driving and retrofit kits are available.