Legal requirements
In the UK, the Highway Code (Rule 57) requires dogs to be suitably restrained so they cannot distract the driver or injure anyone in the event of sudden braking. An unsecured dog is considered "cargo" β and a failing at the scene of an accident can invalidate insurance. In Germany, Austria and most EU countries, securing your dog in the car is a legal obligation with fines for non-compliance.
Restraint systems β what actually works
- Crash-tested dog crate: the gold standard. Should be secured to the boot with a cargo net or strap β an unsecured crate becomes a projectile in a crash.
- Crash-tested harness: not all dog seatbelt harnesses are equal β many have failed independent crash tests. Look for products tested to FMVSS 213 or equivalent. Attach to the vehicle seatbelt loop.
- Boot guard or divider grille: keeps the dog from entering the cabin but does not protect the dog from injury in a frontal impact. Legally adequate in the UK, not the safest option.
Not safe: dog in the front seat, dog on a passenger's lap, dog roaming freely in any part of the vehicle.
Getting your dog used to car travel
- First sessions: sit near the car, sniff, treats β engine off.
- Sit inside with the engine on, go nowhere. Reward calm.
- First drives: very short (2β3 minutes) to places the dog enjoys (park, pet shop).
- Gradually extend duration.
- Never reward anxious behaviour β wait for calm, then praise.
Motion sickness in dogs
Puppies are most prone β the inner ear is still maturing. Signs: drooling, panting, restlessness, vomiting. Most dogs improve with age and regular exposure.
- No food 2β4 hours before travel.
- Good ventilation, cool temperature inside the car.
- Allow visibility out the window (upright positioning helps the vestibular system).
- Frequent stops on longer journeys.
- For persistent or severe cases: ask your vet. Maropitant (Cerenia) is licensed for dogs with motion sickness and very effective.
Never leave your dog alone in a car
On a warm day, the interior of a car parked in the shade can exceed 40Β°C within minutes. Heatstroke is a veterinary emergency and can be fatal. In the UK, leaving a dog in a dangerously hot car can result in prosecution under the Animal Welfare Act. In cold weather, the risk is hypothermia.