Missing a safety warning can leave someone using a dangerous car part, medicine, appliance, or child item long after the maker has learned it may cause fires, crashes, poisoning, or other serious harm. A product recall is a manufacturer's, distributor's, or regulator's action to remove, repair, replace, refund, or warn about a product that may be unsafe or defective. Recalls may be voluntary or ordered by a government agency, depending on the product. For example, motor vehicle recalls are overseen by the National Highway Traffic Safety Administration, while many consumer goods fall under the Consumer Product Safety Commission.

In practical terms, a recall matters because it can show that a company knew, or should have known, about a safety problem. That can affect a product liability claim involving a defect, failure to warn, or negligence. A recall notice may help identify when the risk became known, what products were affected, and what fix was offered.

A recall does not automatically prove legal fault, and the absence of a recall does not mean a product was safe. In an injury claim, timing matters: whether the injury happened before or after the recall, whether a warning was received, and whether the product was repaired or replaced can all affect causation, damages, and possible defenses. In Hawaii, those issues may be especially relevant in vehicle cases where long commutes and heavy H-1 traffic increase exposure to recalled auto parts.