Opening a car door feels automatic—something most of us do without thinking. Yet many serious accidents happen not while driving, but when someone exits a vehicle. Safety experts now recommend a simple habit called the “far-hand reach,” which can greatly reduce these risks.

This method involves using the hand farthest from the door to open it. For drivers in the U.S., that means using your right hand to open the left-side door. It’s a small change that makes a big difference in awareness and safety.

When you reach across your body, your torso naturally turns, prompting you to glance in the mirror and over your shoulder. That quick movement helps spot approaching cyclists, pedestrians, or vehicles before opening the door.

Organizations such as the National Safety Council promote this habit because it prevents “dooring” accidents—when a car door opens into the path of a passing cyclist or car. Such incidents cause thousands of injuries each year and are almost entirely preventable.

The far-hand reach doesn’t require any equipment or cost. It’s a matter of mindfulness and muscle memory—teaching yourself to pause, look, and act safely every time you exit the car.

This simple motion is especially useful in busy cities, tight parking spaces, or areas with shared lanes. It adds just a second to your routine but can spare someone serious harm.

Experts say that once practiced a few times, it becomes instinctive. Turning your body as you exit also makes you more visible to others, adding another layer of safety.

In short, use your right hand to open the door, glance back, and open slowly. It’s a small, cost-free habit that protects both you and those around you—a thoughtful act that turns an everyday moment into a life-saving one.