Protect your dog. You wear a seat belt, your kids wear a seat belt, your pets should be belted in with a harness.
Protect yourself. If not restrained, your dog will become a projectile in an accident and cause great injury to the human occupants—at 30 mph, a 60-pound dog can cause an impact of 2,500 pounds.
Protect emergency aid workers. A terrified or injured animal is unpredictable and could keep paramedics from helping or might even injure them. Police might choose to shoot your dog if they fear for their safety.
Keep your dog from running away after an accident. An unrestrained dog could run off in fear or run into traffic and get hurt.
Prevent distraction of the driver, blocking of the driver’s view, or interference with operation of the vehicle.
Prevent your dog from being ejected from the car or jumping out the window.
Prevent your dog from jumping out when you stop and open the car door.
Prevent car sickness and stress. Your dog will feel more secure and won’t have to keep bracing himself for the movement of the car.
Prevent your dog from sticking its head out the window where it could be injured.
Prevent damage to the interior of your car from an uncontrolled dog.