Car Seat Replacement After an Accident: When It's Needed and Who Pays

After a moderate or severe crash, replace the car seat. The National Highway Traffic Safety Administration (NHTSA) says never to use a seat that was in one. After a minor crash, NHTSA says a seat does not automatically need replacing, but only if all five of its minor-crash conditions are met. Many manufacturers are stricter and tell you to replace the seat after any crash at all, and NHTSA also says to follow the manufacturer's instructions. So the practical rule is: check NHTSA's test, then check your seat's manual, and follow whichever is stricter. The cost of a new seat is usually part of your property damage claim.

NHTSA's minor-crash test

NHTSA treats a crash as minor only when every one of these is true:

1. The vehicle could be driven away from the crash site.
2. The vehicle door nearest the car seat was not damaged.
3. Nobody in the vehicle was injured.
4. If the vehicle has air bags, they did not deploy.
5. There is no visible damage to the car seat.

If even one item fails, NHTSA considers the crash moderate or severe and recommends replacing the seat. A crash where the car was towed, a side impact that dented the door next to the seat, or any crash where a passenger was hurt is not minor under this test, however small it felt.

The test is about the crash, not whether your child was in the seat. And "no visible damage" is only one of five conditions: a seat that looks perfect after an air bag deployment still fails.

Why many manufacturers say to replace after any crash

A car seat is built to absorb crash forces once. The shell, foam and harness webbing can be stressed in ways you cannot see. For that reason several brands do not adopt NHTSA's minor-crash exception. Chicco calls its own approach "even more conservative" than NHTSA's, and Clek and CYBEX say to replace a seat after a crash of any kind, even if it was empty.

Your seat's manual and the label on the seat control. If the manual says to replace after any crash, that instruction is also your best evidence when you ask an insurer to pay.

Manufacturer policies we checked

We read each policy below on the manufacturer's own website on November 3, 2026. Policies change and can differ by model, so check the manual for your exact seat. Brands not listed (including Graco, Evenflo, Nuna, Maxi-Cosi and Safety 1st) are left out because we could not find and read their US policy on their own site; that does not mean they have no policy.

Brand	After a minor crash	What the source says	Read on
Britax (US)	Follow NHTSA's test	Stop using the seat after a moderate or severe crash. For minor crashes, refer to NHTSA's guidelines.	Nov 3, 2026
Chicco (US)	Replace	Recommends replacing after any crash, however minor, including when the child was not in the seat, and including bases and boosters.	Nov 3, 2026
Clek	Replace	Seats must be replaced after a collision of any kind, regardless of severity. Report it to customer support with the model and serial number.	Nov 3, 2026
CYBEX (US)	Replace	Advises that you must replace a child restraint after a crash of any kind, even if it was unoccupied (FAQ on a US product page).	Nov 3, 2026
Diono (US)	Follow NHTSA's test	The Monterey 2XT booster manual repeats NHTSA's rule for the US. The same manual tells Canadian users to replace after any collision. Other Diono models may differ.	Nov 3, 2026

How to get the cost covered

A child's car seat is personal property damaged in the crash, so it is usually claimed along with the car. Which insurer you go to depends on who caused the crash and what coverage you have.

If the other driver was at fault

Claim the seat under the at-fault driver's property damage liability coverage, the same claim that pays for your car's repairs. Liability coverage generally pays for property the insured driver damaged, and that includes things inside your car. You do not pay a deductible on the other driver's policy.

Tell the adjuster about the seat early, in writing, as its own line item. A body shop estimate usually covers only the car.

If you were at fault, or the other driver is uninsured

Look at your own collision coverage. Some auto policies specifically mention child safety seats, and some insurers replace them after any crash as a matter of their own practice. Others pay only after a moderate or severe crash, or only with proof. Read your policy or ask the adjuster which rule your insurer uses. Your collision deductible usually applies to the whole vehicle claim, not separately to the seat.

If the at-fault driver had no insurance, uninsured motorist property damage coverage may apply in states and policies that offer it. Homeowners or renters insurance sometimes covers personal property in a car, but the deductible often makes that a poor fit for a single seat. See our guide to uninsured and underinsured motorist claims.

What to send the adjuster

• Photos of the seat installed in the car, its labels (model number, serial number, date of manufacture) and any visible damage
• The original receipt, or a screenshot of the order, if you have it
• A current price for the same model, or the receipt for the replacement you bought
• The page of the manual, or the manufacturer's web page, that says to replace the seat after a crash
• Which of NHTSA's five conditions the crash failed, if any (for example, "the air bags deployed")

Chicco notes that some insurers ask for documentation from the manufacturer before paying. If yours does, call the manufacturer's customer service and ask for a letter or a written statement of its policy.

Our free car seat replacement reimbursement letter puts all of this in one request.

A worked example

Say a rear-end crash leaves your car drivable, nobody is hurt and the air bags stay closed, but the rear door next to the seat is dented. That fails NHTSA's second condition, so the crash is not minor. You bought the convertible seat two years ago for $280 and the same model now costs $300. You send the other driver's insurer photos, the manual page and the new receipt, and ask for $300 plus sales tax. If the insurer offers a depreciated value instead, point out that a used car seat is not a safe or available substitute and ask what basis it is using. If it still refuses, the seat can be part of a small claims case. See small claims court for car accidents.

What to do with the old seat

• Ask the adjuster first. An insurer may want photos, or the seat itself, before you throw it away. Get that answer in writing.
• Keep the labels. Photograph the model number, serial number and manufacture date before disposal.
• Make it unusable. Chicco suggests cutting the harness straps and writing "Do Not Use" on the shell so nobody pulls it from the curb.
• Recycle if you can. Clek runs its own recycling program, and some retailers hold car seat trade-in events. Otherwise it can go in household trash.
• Never sell or donate it. A crashed seat is not safe for another child, and the next owner cannot know its history.

Buying the replacement

Buy new, not used. A used seat could have been in a crash, could be expired or could be under a recall you do not know about.

Check the expiration date. Seats expire. Chicco puts its seats' lifespan at 6 to 10 years from the date of manufacture depending on the model, and the Diono Monterey 2XT manual says not to use that booster more than eight years after purchase. The date or the date of manufacture is printed on a label on the seat or its base, and the manual says how long that model lasts. When the clock runs from manufacture, a seat that sat in a warehouse has less life left, so check the date before you buy.

Register it for recalls. Fill out the registration card that comes in the box, or register on the manufacturer's website. Registration is how the manufacturer finds you if there is a recall. You can also search NHTSA's recall database by model number at nhtsa.gov.

Get the installation checked. A certified child passenger safety technician can check that the new seat is installed correctly. Some fire departments, hospitals and community safety groups offer checks, often for free.

Before you sign a release

If the at-fault insurer pays for the car and the seat, read any property damage release before you sign it. Make sure it covers property only and does not also release an injury claim for you or your child. Our guide to property damage and total loss claims covers the rest of the vehicle claim, and the evidence checklist helps you keep the receipts and photos in one place.

If your child was hurt in the crash, the seat is the smallest part of the claim. Get the child checked by a doctor, keep the seat until the adjuster or a lawyer says otherwise, and consider talking to a licensed attorney before you settle.