Advanced Driver Assistance Systems (ADAS) features and benefits

ADAS is a broad term used to describe safety features that are designed to help you drive more safely and reduce the risk of an accident. These systems use sensors and cameras to monitor your surroundings and can warn you of danger or even step in to help you avoid it.

While the official name is Advanced Driver Assistance Systems, you’ll often hear different acronyms used. The most common is ADAS, but some manufacturers might also refer to Active Driver Assistance (ADA). It’s all part of the same family of safety tech.

Think of ADA as a more advanced version of ADAS. While standard ADAS features typically send alerts or one-time actions (like emergency braking), ADA systems offer continuous support by actively helping with steering, braking and acceleration. However, it’s important to remember that even with ADA, you must stay in control of the vehicle.

• Cameras: Usually mounted behind your windshield, these cameras can spot pedestrians, traffic signs and other cars.
• Radar: Found in the bumpers or grille, radar sensors use radio waves to track the speed and distance of other vehicles. This tech is key for features like adaptive cruise control and blind spot monitoring.
• Ultrasonic sensors: These are in the bumpers and use sound waves to find close-by objects, which comes in handy for parking help.

A centralized computer instantly analyzes the info for potential hazards, then the system decides if it should give you a heads-up or step in by braking or steering to help you avoid a collision.

• Forward collision warning: This system alerts you if you’re approaching the vehicle ahead too quickly.
• Automatic emergency braking: If the forward collision warning goes off and you don’t react in time, this feature can apply the brakes for you.
• Lane departure warning: This feature will alert you if you start to drift out of your lane without signalling.
• Lane keeping assist: This system goes beyond a warning to gently steer you back into the center of your lane if you begin to drift.
• Adaptive cruise control: This advanced cruise control maintains a set speed while also automatically keeping a safe following distance from the vehicle in front of you.
• Blind spot warning: This feature uses sensors to detect vehicles in your blind spots and alerts you with a light in your side mirror.
• Rear cross-traffic alert: When you’re backing up, this system will warn you if a vehicle is approaching from the side.
• Driver monitoring systems: This feature monitors the driver’s attention level by tracking eye movement and head position. If you appear to be drowsy or distracted, it will alert you to refocus on the road.

Not really. While the feature names sound similar, they can feel different depending on the car brand. Carmakers fine-tune their own systems, so one car’s lane-keeping assist might feel gentle while another could feel more assertive.

You’ll also see these features appear under branded names in some cars (like Subaru’s EyeSight or Toyota’s Safety Sense™). To put these subtle differences in punny terms, your mileage may vary – so it’s best to test drive a car to see how its safety features feel to you on the road.

The main goal of ADAS is to boost your safety by tackling the biggest cause of accidents, human error. And the numbers back up ADAS: a study from the University of Michigan Transportation Research Institute (UMTRI) found that automatic emergency braking cut rear-end injury crashes by 57%, while a suite of backing safety features reduced reverse accidents by 86%.¹

By giving you an extra set of eyes on the road, ADAS can:

• Help prevent or minimize collisions with warnings and automatic braking
• Reduce driver fatigue on long trips with features like adaptive cruise control
• Help you stay aware of your surroundings by watching your blind spots
• Lend a hand with tricky driving, like parking in a tight spot

Overall, it’s estimated that when these features work in tandem as a safety net, they have the potential to prevent up to 40% of all passenger vehicle crashes,² helping to protect you and everyone else on the road.

While ADAS is a great co-pilot, it’s important to know its limits. These are assistance systems, not self-driving ones. As the driver, you’re still in charge and need to remain focused on driving.

Keep in mind that performance can be affected by:

• Bad weather: Heavy rain, snow or even bright sun glare can block the sensors’ view.
• Poor road conditions: Faded or missing lane markings, construction zones and complex intersections can confuse the system.
• Blocked sensors: Dirt, ice or snow can cover a sensor and turn a feature off.

It’s important to understand how your car’s ADAS works and to always be ready to take full control.

They can, but mostly as protection for your driving record. ADAS features can lower your chances of being in an accident, so they can help improve your overall risk profile as an insurance client. 

The main difference is who is in control of the vehicle. ADAS features are designed to support and assist you with driving tasks (like keeping you in your lane or maintaining a safe gap on the highway) but still require you to be fully engaged. Self-driving or autonomous cars can handle all driving tasks without any human input. Driver assistance systems require you to always keep your hands on the wheel and focus on the road.

Yes, most manufacturers allow you to turn off or adjust the sensitivity of certain ADAS features. You can usually do this through your car’s dashboard screen or settings menu. However, because these systems are designed to keep you and your passengers safe, it’s usually recommended to keep key safety features (like automatic emergency braking and blind spot monitoring) active whenever you drive.

They can, but their performance is often reduced. Heavy rain, thick fog, snow or even glare from direct sun can block the view of cameras and sensors. If your car’s sensors are covered in dirt, mud or ice, the system might turn itself off temporarily. It’s always a good idea to keep your car’s sensors clean and be extra cautious when driving in tough weather conditions.