A dog car seat keeps your dog in one place, off your lap and away from the gear stick, and lifts a small dog high enough to see out. Most of them stop there: they're comfort and anti-distraction gear, not crash protection. When the Center for Pet Safety crash-tested four popular booster seats in 2015, every one had a strap, buckle or seat connection fail. Below you'll find which products are crash-test certified, a table of each pick's status, and how to use a booster sensibly if that's what your dog needs.

Our verdict. We haven't driven with a dog in any of these. This verdict rests on the Center for Pet Safety's published results and the makers' specs. If your dog is under 15 lb, we'd buy the Sleepypod Mobile Pet Bed: it's CPS Certified at 5 Star, and it doubles as a bed your dog can sleep in at home. For anything bigger, we wouldn't buy a car seat at all. We'd buy the Clickit Sport harness, CPS Certified in all four sizes, and put a seat cover under it. A booster only makes sense to us for a small, restless dog, and we'd treat it as comfort gear.

How we picked. We checked every crash claim on the Center for Pet Safety's own pages and sorted the picks by what CPS found: certified, or not crash-certified. The booster sections rest on each maker's own page. We cut the Petsfit booster and every claim from CNN Underscored and Dogster, because all we could see of those pages was a search summary.

Quick picks

Badge Pick Evidence
Safest for small dogs Sleepypod Mobile Pet Bed CPS Certified, 5 Star, 15 lb test dog
Best for large dogs Sleepypod Clickit Sport CPS Certified harness, 5 Star, Small to X-Large
Best booster overall K&H Bucket Booster Maker specs; not crash-tested
Best for dogs up to 30 lb Kurgo Skybox Maker specs; failed CPS's 2015 seat study
Premium comfort Snoozer Luxury Lookout Maker specs; the Lookout I failed CPS's 2015 seat study

Crash tested dog car seat: what the testing actually found

The Center for Pet Safety (CPS) crash-tests pet travel products. In its 2015 pet travel seat pilot study of four popular booster seats (PupSaver, Snoozer Lookout I, Top Paw and Kurgo Skybox), each one had a failure. CPS reports that the Snoozer's anchor strap failed and the test dog was "fully unrestrained", the Top Paw test dog was also "fully unrestrained", and the Skybox "became a fully unrestrained projectile". The PupSaver rotated and rolled onto its side, and its instructions recommended the front seat, which CPS says "is not the safest location in the car for your pet", because it exposes them to "airbag deployment" and "occupant compartment intrusion in frontal crashes".

What that means for you:

  • A booster seat is not crash protection. Don't buy one expecting it to protect your dog in a collision, whatever the box says.
  • "Crash-tested" on a listing isn't the same as CPS Certified. Some brands run their own tests. Look for the product on the CPS list.
  • CPS certifies no booster seats. Its CPS Certified list has harnesses, crates and small-pet carriers. The carriers (Sleepypod, PawsInCar and Away) were certified with test dogs of 7 to 25 lb.
  • For large dogs there is no certified car seat. The safer options are a CPS Certified harness like the Clickit Sport, or a CPS Certified crate in your dog's size (table below).

Three rules for any dog in any seat: ride in the back seat, never the front (airbags); clip the tether to a harness, never a collar; and keep any tether short enough that your dog can't reach the footwell or the front seats. The Center for Pet Safety goes further: it "does not recommend extension tethers or zipline-style products", so for real crash protection use a CPS Certified harness, crate or carrier (see how to travel with a dog in the car).

Dog car seat crash test status: our CPS table

Product Type CPS Certified? Sizes certified (rating, test dog) CPS page
Sleepypod Mobile Pet Bed (our pick) Carrier / seat Yes One size; 5 Star; 15 lb test dog (Aug 2024) CPS
Sleepypod Mobile Pet Bed Mini Carrier Yes One size; 5 Star; 7 lb (Aug 2024) CPS
Sleepypod Atom Carrier Yes One size; 5 Star; 12 lb (Aug 2024) CPS
Sleepypod Clickit Sport (our pick) Harness Yes S, M, L, XL; 5 Star (July 2014); rated S to 25 lb, M 45–90 lb, L 75–90 lb, XL to 90 lb CPS
Sleepypod Clickit Range Harness Yes S, M, L, XL; 5 Star; 110 lb test dog (Nov 2024) CPS
Saker Bomber Harness Harness Yes XS, S, M, L; 5 Star; 75 lb (Nov 2022) CPS
Gunner G1 Kennel Crate Small, Medium, Intermediate only 5 Star; 30, 45 and 75 lb test dogs; Large not listed CPS
Lucky Kennel Crate Medium, Intermediate, Large 5 Star; 50, 75 and 110 lb test dogs CPS
K&H Bucket Booster (our pick) Booster No Not on the list; not in the 2015 study List
Kurgo Skybox (our pick) Booster No 2015 study: seat connections failed Study
Snoozer Lookout (our pick) Booster No 2015 study (Lookout I, Medium): anchor strap failed Study

Our data. Method: we read every product page on the CPS Certified list and the 2015 seat pilot study on centerforpetsafety.org on 2026-10-07, and copied CPS's own wording: "Passed Testing", "Rating", size and test dog weight. Crates must be strapped down with the tested strap kit to match CPS's test. A product missing from the list may simply never have been submitted; it isn't proof it failed. The full list and our quotes are in our claims notes, and the crate sizes are explained in our travel dog crate guide.

Sleepypod Mobile Pet Bed

Best for: small dogs up to 15 lb, when safety comes first.

The Mobile Pet Bed is a bed, carrier and car seat in one. CPS lists it as CPS Certified with a 5 Star rating, tested in August 2024 with a 15 lb test dog, and Sleepypod sells it as certified for pets up to 15 pounds. At home it's an everyday bed (the mesh dome zips off), so your dog already knows it before the first trip.

What we like

  • CPS Certified (5 Star), tested with a 15 lb test dog
  • Works as a bed, carrier and car seat
  • Light at 4.5 lb, with machine-washable bedding
  • Comes with a safety tether and seatbelt straps

Keep in mind

  • Small dogs only
  • Expensive for a carrier
  • Enclosed, so your dog can't look out of the window

Key specs: 17" diameter × 13.5" tall · 4.5 lb (maker) · CPS test dog 15 lb · the smaller Mini (7 lb test dog) and Atom (12 lb) are CPS Certified too

Evidence: independently certified by CPS.

Check price on Amazon

Large dog car seat alternative: Sleepypod Clickit Sport

Best for: medium and large dogs who ride on the back seat.

There isn't a certified large dog car seat, so for big dogs we recommend a crash tested dog harness instead. CPS lists the Clickit Sport as CPS Certified with a 5 Star rating in Small, Medium, Large and X-Large. It isn't the only one: CPS also certifies Sleepypod's Clickit Range and the Saker Bomber Harness (see the table). It has three points of contact with the seatbelt and works as a walking harness too.

What we like

  • CPS Certified, 5 Star, in all four sizes
  • Three points of seatbelt contact
  • Doubles as a walking harness

Keep in mind

  • It isn't a "seat": your dog sits or lies on the car seat itself, so a back seat cover for large dogs protects the upholstery
  • Fitting is fiddly the first few times
  • Pricier than a standard harness
  • CPS gives a weight rating per size (Small to 25 lb, Medium 45–90 lb, Large 75–90 lb, X-Large to 90 lb). Check those against Sleepypod's girth chart before you order

Key specs: harness with three points of seatbelt contact · S, M, L, XL · CPS Certified (5 Star)

Evidence: independently certified by CPS.

Check price on Amazon

Illustration: dog in the back seat wearing a crash-tested harness clipped to the seatbelt with a short tether

Dog car booster seat picks (comfort, not crash protection)

The seats below are not CPS Certified, and two of them come from product lines that failed CPS's 2015 seat study. They're good at keeping a small dog settled, contained and able to see out. Always pair them with a harness and the back seat.

K&H Bucket Booster Pet Seat

Best for: small and medium dogs who like to see out, or two small dogs together.

K&H says the Bucket Booster lifts your dog about 5.5 inches. The seat belt runs under the removable cushion to hold it in place, the front dips down so your dog can climb in, and it comes with two adjustable tethers (10 to 18 inches) for your dog's harness. It's made of closed-cell foam with a washable fleece cover, and it knocks down flat for storage. It's our "best booster" on specs, not on any test: it's the only booster here with no weight limit, it takes two small dogs, and the belt goes under the cushion so the seat can't slide around.

What we like

  • Lifts your dog about 5.5 inches to see out
  • Seat belt holds the base; two tethers included
  • Low front for climbing in
  • Removable, washable cover

Keep in mind

  • Not crash-tested, and not on the CPS list
  • K&H gives no weight limit, so judge the fit by your dog's size
  • Bulky: even the Small is 18 × 18 inches

Key specs: Small 18 × 18 × 16" · Large 22 × 20 × 16" · 2 tethers, 10–18" · K&H recommends the back seat

Evidence: specs only, from K&H.

Check price on Amazon

Kurgo Skybox Rear Seat Booster

Best for: small dogs up to 30 lb, in a car where space is tight.

A raised, padded box that installs with your car's seatbelt and has an integrated tether for your dog's harness. It collapses for storage, has storage pockets and can be used as a travel bed. Kurgo itself recommends using it with a crash-tested travel harness, and says to replace the booster after any accident, as you would a child seat or bike helmet.

What we like

  • Raised so a small dog can see out
  • Integrated tether and seatbelt installation
  • Collapses flat; doubles as a travel bed

Keep in mind

  • Not CPS Certified. In CPS's 2015 seat pilot study, the Skybox's seat connections failed and it "became a fully unrestrained projectile"
  • Spot clean only, per Kurgo
  • Interior is small (about 15.5 × 12.5 inches)

Key specs: interior 15.5"W × 8.5"H × 12.5"D · dogs up to 30 lb (maker)

Evidence: specs only, from Kurgo; crash result from CPS.

Check price on Amazon

Snoozer Luxury Lookout Dog Car Seat

Best for: small dogs who love the view, and owners who want a plusher seat.

Snoozer sells this as the Luxury Microsuede Lookout I, hand-sewn to order, with a machine-washable microsuede cover, a removable pillow, an optional storage tray and a connection strap that links the seatbelt to your dog's harness. It comes in two sizes: Small for pets up to 18 lb and Medium for pets up to 25 lb.

What we like

  • Raised for the view, with a 6-inch-deep inner seat
  • Machine-washable cover
  • Storage tray option for leash and treats
  • One-year warranty

Keep in mind

  • Not CPS Certified. In CPS's 2015 seat pilot study, the anchor strap on a Lookout I (Medium) failed and the test dog was "fully unrestrained". Snoozer's site shares owner crash stories; CPS's test is the independent result
  • Bulky for its weight rating: the Medium is 22 inches wide for a dog up to 25 lb

Key specs: Small (to 18 lb) 19"L × 15"W × 17"H outside · Medium (to 25 lb) 19"L × 22"W × 17"H outside · inner seat 6" deep

Evidence: specs only, from Snoozer; crash result from CPS.

Check price on Amazon

Small dog car seat: how to choose

If safety in a crash is the priority

For a small dog, a CPS Certified carrier like the Sleepypod Mobile Pet Bed (15 lb test dog) is the answer. It's less fun for a dog who likes the view, but carriers are the only small-dog "seats" on the CPS Certified list.

If your small dog gets anxious or restless

A booster seat that lets them see out, plus a short tether to a harness, keeps many small dogs calmer and off your lap. Just don't treat it as crash protection.

Check these on every booster

  • How it attaches: the seat belt should go through or under the base, so the seat can't slide.
  • Tether: short, with a swivel clip, attached to a harness.
  • Fit: your dog should be able to sit and lie down without spilling over the edge. Check the weight rating where there is one (Kurgo 30 lb, Snoozer 18 or 25 lb).
  • Washable cover: car sickness and muddy paws happen.

Illustration: a small dog sitting in a padded booster seat on a car's back seat, tether clipped to its harness

Large dog car seat options

For dogs over about 30 lb, there's no booster rated for them and no certified seat. Your realistic choices:

  1. A CPS Certified harness like the Clickit Sport, on the back seat, with a seat cover underneath.
  2. A CPS Certified crate in your dog's exact size, strapped down in the cargo area with its tested strap kit. CPS lists the Gunner G1 (Small, Medium, Intermediate) and the Lucky Kennel (Medium, Intermediate, Large) at 5 Star; our travel dog crate guide covers the sizes.
  3. Getting in and out: if your big dog struggles to jump into the car, a dog ramp for the car helps.

Comparison table

Pick Type Dog size Crash certification Best for
Sleepypod Mobile Pet Bed Carrier / seat 15 lb test dog CPS Certified, 5 Star Small dogs, safety first
Sleepypod Clickit Sport Harness S, M, L, XL (to 90 lb per CPS) CPS Certified, 5 Star Medium and large dogs
K&H Bucket Booster Booster Small, medium (no stated limit) Not crash-tested Seeing out, two small dogs
Kurgo Skybox Booster To 30 lb Not CPS Certified; failed 2015 study Tight spaces
Snoozer Luxury Lookout Booster To 18 or 25 lb Not CPS Certified; Lookout I failed 2015 study Plush comfort

FAQs

Are dog car seats safe in a crash?

Most aren't designed or proven to protect in a crash. In the Center for Pet Safety's 2015 pilot study of four popular booster seats, each had a strap, buckle or connection fail. CPS certifies no booster seats; the only "seats" on its list are small-pet carriers, certified with test dogs of 7 to 25 lb.

What is the safest dog car seat?

For a dog up to 15 lb, a CPS Certified carrier such as the Sleepypod Mobile Pet Bed, which earned 5 Star with a 15 lb test dog. For bigger dogs, CPS certifies no seat, so the safest setups are a CPS Certified harness like the Clickit Sport, or a CPS Certified crate in your dog's exact size.

Is there a crash tested dog car seat for large dogs?

Not a certified seat. For large dogs, use a CPS Certified harness like the Sleepypod Clickit Sport on the back seat, or a CPS Certified crate in your dog's size, strapped down in the car with its tested strap kit.

What is the best small dog car seat?

For crash safety, the Sleepypod Mobile Pet Bed (CPS Certified, 5 Star, tested with a 15 lb dog). For a small dog who wants to see out, a booster like the K&H Bucket Booster or Kurgo Skybox, used with a harness on the back seat, but these aren't crash protection.

Do dog booster seats work?

They work for what they're good at: keeping a small dog contained, off your lap and able to see out, which can make the drive calmer for both of you. They don't protect your dog in a crash, and two of the three here come from lines that failed CPS's 2015 test.

Can my dog ride in the front seat in a car seat?

No. CPS says the front seat "is not the safest location in the car for your pet", because of "airbag deployment" and "occupant compartment intrusion in frontal crashes". Put any dog car seat, carrier or harness setup in the back seat.

A booster buys you a calmer drive; only a certified carrier, harness or crate is built for the crash. Decide which of the two you're shopping for before you pick a seat.