Leaving a dog in a car, even for a short time, can pose serious risks. The temperature inside a vehicle can rise rapidly, leading to heat exhaustion or even heatstroke, which can be fatal. Dogs are susceptible to overheating because they can't sweat like humans do and rely on panting to regulate their body temperature.

In addition to heat-related issues, leaving a dog in a car can expose them to anxiety or stress from being confined. It may lead to harmful behaviors such as chewing or scratching at the interior. Furthermore, there is the risk of theft or accidental injury if a person attempts to rescue the animal from the vehicle.

To keep your dog safe, it is best to avoid leaving them in a parked car altogether. If necessary, choose pet-friendly locations and ensure your dog is supervised and comfortable.