Hyundai Mobis Co. will debut a narrow self-driving safety system aimed at drowsy drivers at CES 2018 this week, reports Automotive News.

The system simply pulls a car over to the side of the road if it detects the driver has fallen asleep. Dubbed DDREM for Departed Driver Rescue & Exit Manueuver, existing cameras and radar detect when a driver has dozed off and activates a Level 4 self-driving system to will steer the vehicle to safety.

SAE defines Level 4 systems as being able to drive autonomously in defined conditions with no driver interaction required. The company is currently in the final stages of r&d on the systems components, and hopes to bring it to market by 2022.