EPB (Electric Parking Brake): The parking brake is activated and deactivated by a simple switch operation. Brake hold: The brake hold system applies the brake so that the driver can take the foot off the brake pedal. Applicable when the system is activated, and the brake pedal has been depressed. Trail mode: Trail mode provides integrated control of the AWD, braking, and drive force to prevent the wheels from slipping when driving on slippery or uneven road surfaces. DAC (Downhill Assist Control): DAC is available on the RX350 AWD. The system helps to prevent excessive speed on steep downhill slopes. The system will operate when the vehicle is traveling under 30km/h with the accelerator and brake pedals released.