Car travel and dogs: motion, restraint and stress

Car travel and dogs goes wrong in two completely different ways that look identical from the driver's seat. One is physical: the inner ear and the stomach. The other is learned: the car predicts something your dog does not want. The drooling looks the same. The plan is not the same, and getting the two confused is why people spend years treating the wrong one.

We sell a compression garment and we are going to say plainly, before anything else, that it addresses neither of these causes. The published appraisal of pressure vests concluded that owners should not expect anxiety to be fully alleviated and that a vest may have no benefit at all, which we report in our dog anxiety wrap guide.

Car travel and dogs: telling the two problems apart

Not definitive, and not a diagnosis, but a useful first sort.

Points towards motion sickness. Signs begin after the car is moving rather than before. Drooling, lip licking, swallowing, then vomiting. Worse on winding roads, better on motorways. Fine in a stationary car with the engine running. Common in young dogs and in some cases improves with age.

Points towards travel fear. Signs begin before the car moves, sometimes when you pick up the keys. Refusing to get in, hiding, trembling, pacing, panting, barking. No pattern related to road type. A dog that is distressed in a parked, stationary car has a learned association, not a vestibular problem.

Both at once is common. A dog that has vomited in the car several times has every reason to have learned that the car is unpleasant, which is how a physical problem acquires a behavioural one on top.

The FDA notes on its travel page that it is common for pets to experience motion sickness while travelling in a car, and suggests not feeding a large meal before travel and cracking a window for fresh air. The page is here.

Motion sickness is a veterinary conversation. There are things a clinician can do about it. We are not going to name, recommend or discuss any of them, because that is a prescribing decision made by someone who has examined your dog. If your dog vomits in the car, that is the appointment to book rather than the product to buy.

Restraint, which is the part with an actual policy behind it

This is the one area of car travel where there is a clear position from a professional body rather than product copy.

The American Veterinary Medical Association's policy on safe non-commercial transport of pets in motor vehicles is published here. Its substance:

• "It is unsafe for pets to be loose inside motor vehicles."
• The preferred options are a species-appropriate enclosure of appropriate size, or a properly designed, species-appropriate safety harness.
• Enclosures should allow for appropriate ventilation.
• "Transport of pets, loose or tethered, in open cargo areas of motor vehicles is not safe." If pets are carried that way, the policy calls for properly secured, size-appropriate enclosures designed for open cargo areas.

And then the part worth reading twice, because it is unusual for a professional body to print it: the AVMA notes there is limited scientific information on the safety of individual transport products, and encourages the development of evidence-based crash testing of animal enclosures and safety harnesses.

In other words, "crash tested" on a packet is a claim you are entitled to ask questions about. We do not sell restraints and have no position on which to buy, but we can tell you that the professional body's stance is that the evidence base for individual products is thin.

The FDA page adds the ordinary operational advice: secure pets in the back seat, in a crate, carrier or harness, get your dog used to that crate, carrier or harness before the trip, and never leave a dog unattended in a car, even for a few minutes.

If the problem is the learned association

This is management and training, and it is free.

Decouple the car from the destination. If every journey ends at the vet, the groomer or the kennels, the car means those things. Drive two minutes to a field your dog likes and come home.

Start with the engine off. Doors open, dog not required to get in, food in the footwell. Then sitting in a stationary car with you, for thirty seconds, then off. Then engine on, parked. Then to the end of the road.

Keep the sessions short and end them early. The same below-threshold principle that underlies all of this work: the 2015 AAHA behaviour management guidelines, published in JAAHA, describe presenting a stimulus at a level below that which elicits the response, then increasing gradually, and state that flooding is never recommended. Driving a panicking dog around for an hour to get them used to it is flooding.

Pair the car with something good. Counterconditioning as the guidelines define it: pairing the thing the dog finds difficult with something the dog likes, usually preferred food. Our article on desensitisation and counterconditioning sets out how to run this properly.

Fix the practical irritants. A dog sliding around on a slippery seat has a worse time than a dog with grip and a stable position. Facing forwards tends to go better than facing sideways. Keep the car cool, because a warm car makes both problems worse.

Watch for the quiet signals rather than waiting for the obvious ones. The AAHA guidelines note that owners recognise trembling, shaking and high-pitched vocalisation and tend to miss the subtler signs. Our piece on reading stress in a dog covers those.

Where the garment does and does not fit

It does not address the inner ear, and it does not undo a learned association. We are making no claim either way about what it does in a car, because the appraisal we keep citing, which is available here, allows that it may do nothing at all.

Two practical notes if you own one and intend to use it in a car anyway.

Restraint comes first. A vest is not a restraint and must not interfere with the fit of a harness or the closure of a crate. If wearing it means the harness no longer sits correctly, the harness wins.

And it should never be the first time. Introduce the garment on ordinary afternoons at home, as in teaching a dog to wear a vest, not in a moving vehicle.

When this is a vet appointment

Book one if your dog vomits in the car, if the distress is escalating, if your dog cannot settle for a long time after a journey, if the fear is new in an older dog, or if your dog has become aggressive when handled near or inside the car. The AAHA guidelines call for consulting a veterinarian at the first signs of any problematic behaviour and note that any change warrants a professional assessment. Our piece on when a frightened dog needs a vet lists the rest.

The short version

Work out whether the problem starts before the car moves or after it. If after, that is a veterinary conversation about motion sickness. If before, it is management: engine off, short, below threshold, paired with food, with the destination sometimes being somewhere good. Restrain your dog properly either way, and note that the AVMA itself says the evidence on individual restraint products is limited. Our garment is $32 and does not belong anywhere in that list of fixes.