Traffic Jam Assist

It combines adaptive cruise control and lane centring. The driver must stay attentive. Some systems allow hands off at low speed. It is designed for slow, dense traffic, often up to a set speed, and can follow the car in front and keep the lane. Most systems check that the driver's hands are on the wheel or that the driver is looking at the road with a camera. When conditions are not met, the system hands control back with warnings.

Sensors track lanes and vehicles ahead.

It is not autonomous driving. Follow local rules.