For a dog, an open car window can feel like the best part of the trip. New smells arrive all at once, the air is moving, and the whole ride suddenly becomes more interesting. The problem is that this fun-looking habit carries real risks, especially while the car is moving.
At driving speed, anything kicked up from pavement or nearby traffic can reach your dog’s face quickly. Road grit, sand, insects, plant fragments, and other loose debris may scratch the eyes or irritate the ears, nose, or mouth. These injuries can happen during an ordinary drive, not only on a highway.
The steady rush of air can also be hard on the ears. Repeated flapping may leave the ear flap sore, irritated, or injured, especially in dogs with longer ears.
An open window creates other hazards too. A paw can hit the window control. A sudden stop or sharp turn can knock an unrestrained dog off balance. A dog may also lunge toward something outside the vehicle, even one who is usually calm in the car.
The open bed of a pickup truck is even less safe. Without the protection of the vehicle cabin and proper restraint, a dog has little protection if the truck stops, turns, or is involved in a crash.
A safer approach is to keep your dog inside the vehicle, with the window closed or opened only a small amount for airflow. Use a properly fitted dog seat belt, travel harness, secured crate, or carrier so your dog can ride comfortably without climbing out or distracting the driver.
Your dog can still enjoy the outing. Fresh air, water, breaks, and a secure place to settle make car travel safer for both of you.