Training Your Dog To Travel In The Car
Safety first
The Highway Code stipulates that dogs are suitably restrained so even before travelling you'll need to teach your dog to feel relaxed in a comfortably-sized seat-belt harness, pet carrier, dog cage or in the boot behind a dog-guard. These must be securely fitted and positioned so your dog can't interfere with the driver or hang out of windows. Never leave your dog alone in the car and keep them as cool as possible while travelling - non-spill water bowls are helpful, as is planning toileting/exercise breaks for longer journeys.
Make the car an enjoyable place to be
Start by using your dog's favourite special treats to reward them for being calm whenever they're near the car, even just walking around it to begin. Reward your dog for sitting calmly before you're ready to open the door and invite them inside.
Getting in and out safely
If your dog has travelled before and enjoyed it, they might be very excited about jumping into the car and out of it when you arrive at the park - but this isn't a good idea as can put them at risk of injury or accident. Ask them to sit while you slowly open the door and give them a few treat...