Dog safety in the car: crate, carrier, or harness?

Before you set off, you buckle up. But when it comes to the dog in the back seat, many of us still forget. Dog safety in the car is largely about prevention: a few good habits and the right equipment, and you're all set. In this guide, we'll go through how to properly secure your dog in the car, what crash tests and the law say about it, how to choose a crate or harness, and how to calmly accustom your dog to it.

We also dedicated the 62nd episode of the Smečka podcast with Honza Bílek to this topic, where specific advice is given on how to choose a good crate and transport your dog calmly. If you prefer listening, go ahead and play it.

Why securing your dog in the car pays off

During normal driving, a car is a safe place. However, as soon as there's sudden braking or a collision, physics comes into play. The German automobile club ADAC, in its tests with dummies, measured that a twenty-two-kilogram dog can exert a force equivalent to more than 500 kilograms in a 50 km/h impact. No one can hold such a force in their arms or on a leash.

The good news is that all of this is easily solvable. A secured dog stays in place, the ride is calmer for both them and you, and in the event of an accident, rescuers can treat them more easily. All it takes is a properly chosen crate or harness and a little habituation. Let's look at it practically.

What the law says about dogs in cars

Slovak legislation only generally addresses dogs in cars. The topic is regulated by the Road Traffic Act (Act No. 8/2009 Coll.). This act does not specify exactly where a dog should sit or how it should be restrained. However, it does state that the driver must not be restricted while driving (§ 3 and § 4 on driver's duties) and that cargo — and a dog is judged similarly from this perspective — must be secured according to § 51 so as not to endanger anyone.

In practice, this means only one thing: the dog must not move freely around the car. For an unsecured animal, the police can impose a fine, and in the event of an accident, how the insurance company assesses your responsibility also plays a role. Some insurance companies may reduce benefits if the dog was not properly secured.

Crate, carrier, or harness: what passes a crash test

Here, it pays to choose based on safety, not just price and portability. Crash tests by the German automobile club ADAC, the Swiss automobile club TCS, and the American Center for Pet Safety show which solutions actually hold up in an impact. Let's look at each option.

Solid crate or box in the trunk performed best in tests. The condition is that they are firmly anchored to the floor and positioned as close as possible to the rear seatbacks, ideally across, so that the impact force is distributed throughout the structure. Crash-tested transport boxes with TÜV SÜD certification offer the highest protection. Cheap, unreinforced boxes do not provide such certainty.

A plastic carrier for small dogs makes sense, but it belongs on the floor behind the front seats, in the footwell. There, it has nowhere to shift in an impact. One thing to watch out for: do not strap the carrier to the seat with a regular seatbelt, because an impact will not hold it securely when fastened this way. On the floor behind the seat, it is safe even without being strapped in.

A safety car harness is a practical solution for small and medium-sized dogs that are used to riding on the seat, but it is important to emphasize that it is more suitable for city driving. At high speeds on the highway and with airbag activation, its dog protection capabilities are limited. Opt for a strong car harness with wide chest straps, not an ordinary walking harness. Our tip is the HUNTER Brixen: a Y-shaped nylon strap with five-point adjustment, removable padding, and a metal buckle positioned so it does not touch the dog's skin. It attaches to the car seatbelt, whose restraint function it takes over in an impact, with a connecting element secured by a climbing carabiner.

What to NOT rely on in an impact: cheap fabric carriers, non-original or poorly secured grates and nets, and protective trunk blankets. Both the blanket and the net have their place. They protect upholstery from hair and dirt and prevent the dog from climbing forward, but they do not replace actual restraint in an impact.

Boxes by size and dog temperament can be found in the car carriers and boxes category.

Where to place your dog in the car

The safest place is the back seat or the trunk. Dogs do not belong in the front seat, unless they are in a carrier designed for it (e.g., Caree front seat carrier). Airbags are designed for humans and are not suitable for dogs. Place the box or crate in the trunk across and as close as possible to the rear seatback, and a small plastic carrier on the floor behind the front seat. The harness belongs in the back seat, for the same reason as with airbags.

How to choose a safe carrier or harness

When choosing, do not let price be the first criterion. Honza Bílek summarizes it clearly in the podcast: a cheap carrier from an anonymous e-shop looks the same as a quality one, but behaves completely differently in a crisis situation. What to look for:

• Solid construction and certification. For boxes, look for crash test results and TÜV SÜD certification. For harnesses, opt for solid construction, wide chest straps, and a metal buckle; independent tests like those from the Center for Pet Safety are a nice bonus.
• Strong buckles and quality stitching. A metal buckle holds better than a plastic one. For harnesses, look for wide X or Y-shaped chest straps that distribute force across the chest, not the neck.
• Correct size. The dog must be able to stand up, turn around, and lie down comfortably in the carrier. Roughly, choose a size about 15 cm larger than the dog's height and length. Neither a too-small nor a too-large carrier will be effective.

How to calmly accustom your dog to a carrier

The safest box is useless if the dog panics in it. The good news is that a carrier can be built into a pleasant and safe place, not a prison. It works gradually and always on a positive note.

Start at home. Leave the carrier open in the room where the dog normally stays, put their favorite blanket inside, and feed them treats piece by piece at the entrance and later inside. Treats, calm, and no pressure. Once your dog goes in on their own, you can gradually extend the time and eventually close the door for a moment while you are there. Never use the carrier as punishment or force the dog into it, otherwise they will develop the exact opposite relationship to it than you want. Before embarking on a longer journey, try a few short test drives so your dog associates the carrier with the journey always ending well.

This patient, positive approach is exactly what we build on. A dog that sees the box as their bed travels calmly and safely at the same time.

Most common mistakes to avoid

• Dog loose in the front seat or on the owner's lap.
• Dog unsecured loose in the trunk or crammed under the passenger's feet.
• Carrier strapped to the seat with a regular seatbelt.
• Dog restrained by a collar (most dangerous) or harness to the seatbelt buckle.
• Extension or zip-line strap allowing the dog to move around the cabin.
• Cheap fabric carrier relied upon for accident protection.

Frequently Asked Questions

Does a dog have to be restrained in a car? Act No. 8/2009 Coll. on Road Traffic does not prescribe a specific method, but the driver must not be restricted, and the animal must not endanger anyone. In practice, this means the dog must be secured. For an unsecured animal, there is a risk of a fine and complications with the insurance company. Be careful abroad: for example, in Austria, Switzerland, Italy, or Spain, high fines apply for transporting an unsecured pet.

Where to put a dog in the car? The safest place is the back seat or the trunk. Place the box in the trunk across and as close as possible to the seatback, and a small carrier on the floor behind the front seat. Due to airbags, dogs do not belong in the front seat.

Is a crate, carrier, or harness better? For large and medium-sized dogs, a sturdy, crash-tested crate or box in the trunk performs best in tests. A strong car harness is a good compromise for small and medium-sized dogs in the back seat for city travel.

Can a dog ride in the front seat? Preferably not, unless it is in a safety carrier designed for the front seat. Airbags are designed to protect an adult human and are not suitable for dogs. The rear of the vehicle is always safer.

How big should a car carrier be? The dog must be able to stand up, turn around, and lie down in it. Roughly, choose a carrier about 15 cm longer and taller than the dog itself. A carrier that is too large, on the other hand, fixes the dog less effectively in an impact.

When choosing travel equipment, take a look at our car carriers and boxes and the Brixen safety car harness. You'll find them along with other equipment in the dog travel section, where you'll find equipment chosen with love and with your buddy's safety in mind.