A well ventilated or air-conditioned vehicle is important. Attempt to travel during the cooler periods of the day and avoid leaving your pet in the car on warm or hot days. If it is absolutely necessary to leave your pet in a stationary car then park in the shade, keep the windows open and check your pet regularly.
Signs of heat stroke include excessive panting and salivation, breathing difficulties, collapse and seizures. If you suspect heat stroke, wet your pet and travel directly to your nearest veterinarian with the car windows open.