The leading cause of vehicle accidents is distracted driving , which involves any activity that diverts attention from driving, such as texting, using a cellphone, eating, or talking to passengers. Distracted driving is the number one cause of car accidents in the U.S. today and is responsible for a large proportion of crashes resulting in injuries and fatalities. Other major causes include:

• Speeding, which reduces reaction time and increases the severity of crashes.
• Drunk driving, which impairs judgment and motor skills.
• Reckless driving and running red lights or stop signs.
• Poor weather conditions and inexperience, such as teenage drivers.

Distracted driving remains the top cause because it significantly reduces driver focus on the road, leading to errors and collisions.