Helping make the road a safer place with Pedestrian Detection (PCS w/PD) helps keep the road safe by detecting a pedestrian under certain daytime conditions. If the system determines that the possibility of frontal collision with a pedestrian is high, it prompts the driver to take evasive action and brake by using an audio/visual alert. If the driver reacts and brakes, the system may use Brake Assist (BA) to provide additional brake force. If the driver doesn't react and brake and the system determines that the risk of collision is high, the system may automatically apply the brakes, reducing speed to help mitigate the impact or avoid the collision entirely, if possible.
Lane Departure Alert with Steering Assist (LDA w/SA)
Under certain circumstances, Lane Departure Alert (LDA) is designed to detect lane departure on roads with visible lane markings. LDA only activates when you’re traveling at a speed of 32 mph or faster. When you hear and see the alert, after carefully checking the road around you, you should safely direct your vehicle back to the center of your lane. In addition, Prius's Toyota Safety Sense P (TSS-P) and Electronic Power Steering (EPS) include Steering Assist (SA) functionality. When it’s activated and senses that you’re unintentionally drifting, the system may automatically make small corrective steering inputs to help keep your vehicle in its lane.
Full-Speed Dynamic Radar Cruise Control (DRCC)
Intended for highway use and similar to "constant speed" cruise control, Full-Speed Dynamic Radar Cruise Control (DRCC) lets you drive at a preset speed. DRCC uses vehicle-to-vehicle distance control, which is designed to adjust your speed, to help you maintain a preset distance from vehicles ahead of you that are driving at a slower speed. DRCC uses a front-grille-mounted radar and an in-vehicle camera to detect vehicles and their distance. If a driver is traveling slower than you, or within your preset range, DRCC will automatically slow your vehicle down without deactivating cruise control. If DRCC determines you need to slow down more, an audio and visual alert notifies you and brakes are applied. When there's no longer a vehicle driving slower than your preset speed in front of you, DRCC will then accelerate and regular cruise control will resume.
Automatic High Beams (AHB)
The Automatic High Beams (AHB) feature is a safety system designed to help you see more clearly at night. Designed to activate at speeds above 25 mph, AHB relies on an in-vehicle camera to help detect the headlights of oncoming vehicles and taillights of preceding vehicles, then automatically toggles between high and low beams accordingly to provide the appropriate amount of light. By using high beams more frequently, the system may allow earlier detection of pedestrians and obstacles.