Which of the following is NOT a necessary step when approaching a vehicle?

Checking tire tread depth with a penny is not a necessary step when approaching a vehicle. While understanding the condition of your tires is important for vehicle safety and performance, this specific action is typically part of a more detailed vehicle maintenance routine rather than a step that should be taken every time you approach your car.

When you approach a vehicle, it is crucial to look for obstacles around it to avoid any potential hazards that could impede your path or pose a risk to your safety. Ensuring the surroundings are clear helps prevent accidents, particularly in busy or crowded areas. Additionally, being aware of pets or children nearby is vital since they can be at risk in close proximity to vehicles, especially when the vehicle is being approached or moved.