Common Car Safety Myths That Could Put You at Risk

Without a seatbelt, an unrestrained occupant can slide under or be thrown into a deploying airbag at speeds exceeding 100 mph. That force can cause severe head, neck, and chest injuries rather than preventing them. The NHTSA consistently reports that seatbelts are the single most effective protective device in a vehicle, reducing fatal injury risk for front-seat passenger car occupants by about 45 percent. Airbags add meaningful additional protection — but only when a seatbelt is already doing its job.

Research from the AAA Foundation for Traffic Safety found that voice-based interactions — including navigation commands and calls — can leave drivers mentally distracted for up to 27 seconds after completing a task. At 25 mph, that's enough time to travel the length of nearly three football fields with reduced situational awareness. A mounted phone eliminates manual distraction but does not eliminate cognitive load. For the lowest distraction risk, completing any phone interaction before driving or while parked remains the safest practice.

4WD and AWD systems distribute engine power to all four wheels, helping a vehicle move through slippery conditions. However, braking is governed by tire-to-road friction, which is the same for 4WD vehicles as for two-wheel-drive vehicles on the same surface. A driver who overestimates their stopping ability in winter conditions is at greater risk, not less. Winter tires — not drivetrain configuration — have the greatest measurable impact on stopping distances in snow and ice.

Modern vehicle safety engineering has narrowed the gap between larger and smaller vehicles considerably. Smaller cars with advanced crumple zones, electronic stability control, and high crash-test ratings often outperform older or poorly engineered larger vehicles. The IIHS and NHTSA both use rigorous independent testing that captures this nuance. Understanding those ratings is more useful than relying on size alone — see our guide to NHTSA and IIHS crash-test scores for a full breakdown.

Car lengths vary widely between vehicles, making distance-based rules inconsistently applied in practice. The two-second rule (choose a fixed point ahead; the vehicle in front should pass it at least two seconds before you do) gives a consistent, speed-adjusted gap. At highway speeds or in adverse weather, safety experts recommend three to four seconds or more. Tailgating is one of the leading contributors to rear-end collisions — learn more about the physics of following distance.

Adrenaline released during and after a crash can mask pain signals, giving occupants a misleading sense of being uninjured. Whiplash, the most common injury from rear-end collisions, frequently produces symptoms hours or days after impact. Medical professionals and insurers generally recommend evaluation after any collision, even low-speed ones, both for health reasons and to establish an accurate record if symptoms emerge later. This is general information only — consult a qualified healthcare provider after any collision for guidance specific to your situation.