If a child is hurt, call 911 or Poison Control (1-800-222-1222).

Harmony Juvenile Products child seat recall 18C001000

Official NHTSA recall 18C001000, dated Apr 17, 2018.

Last checked against NHTSA data on Oct 15, 2026, 7:03 PM ET.

Status: Recall found NHTSA

Read the official notice and compare the model number and manufacture date on your label.

Read the official notice Report an error

Hazard (from the official notice)

Excessive chest force can increase the risk of injury.

Remedy (from the official notice)

Harmony will notify owners, and provide a replacement booster seat of a different model, free of charge to eligible U.S.

Hazard (from the official notice)

Excessive chest force can increase the risk of injury.

Remedy (from the official notice)

Harmony will notify owners, and provide a replacement booster seat of a different model, free of charge to eligible U.S. consumers who currently own a Big Boost unit and are the original purchaser, original owner, and/or original user of the Big Boost unit. Interim notices informing owners of the safety risk were mailed August 21, 2018. The recall began July 3, 2020. Owners may contact Harmony customer service at 1-877-306-1001.

Summary (from the official notice)

Harmony Juvenile Products (Harmony) is recalling certain Harmony Big Boost Deluxe booster seats. In the event of a crash, the seat belt may cause excessive force to be applied to the restrained child's chest. As such, these booster seats fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 213, "Child Restraint Systems."

Hazard and remedy text is shown word for word from the official notice.

Harmony Juvenile Products Child seat All recalls from 2018-04

Other Recalls with This Product Type

Questions About This Recall

What is the hazard in the official notice?

Excessive chest force can increase the risk of injury.

What does the official notice say to do?

Harmony will notify owners, and provide a replacement booster seat of a different model, free of charge to eligible U.S. consumers who currently own a Big Boost unit and are the original purchaser, original owner, and/or original user of the Big Boost unit. Interim notices informing owners of the safety risk were mailed August 21, 2018. The recall began July 3, 2020. Owners may contact Harmony customer service at 1-877-306-1001.

Where is the official notice?

The NHTSA notice is linked on this page. Compare the brand, model, and date on your label with that notice.

Register your car seat with the manufacturer so they can contact you if it is recalled. Look for the registration card that came with the seat or visit the manufacturer's website.