How do you stop dog from biting car bumper?

To stop a dog from biting the car bumper, first ensure the dog is properly exercised and mentally stimulated to reduce boredom. Use positive reinforcement techniques to train the dog to associate the car with rewards, such as treats or praise, when it exhibits calm behavior around the vehicle. Additionally, consider using deterrents like a bitter spray on the bumper or providing a designated chew toy to redirect their biting behavior. Consistent training and supervision are key to modifying this behavior over time.