Safety Warnings: Do They Grant an Indulgence from Product Liability?

Abstract

This article examines whether safety warnings can excuse or neutralize product defects under strict product liability. It addresses a persistent tension at the heart of modern product liability law: whether risk may be shifted to consumers through disclosure, or whether certain risks must remain with the producer irrespective of warning. The analysis proceeds from the premise that product liability is organized around defectiveness rather than fault. Within the European Union, defectiveness is determined by reference to the level of safety the public is entitled to expect, taking into account all relevant circumstances, including the product’s presentation. Safety warnings, therefore, form part of the defectiveness inquiry, but their precise legal function remains contested. To clarify this function, the article combines doctrinal analysis of European Union legislation and case law with comparative insights drawn from the United States, England, and Canada. Particular attention is paid to the tripartite distinction between manufacturing defects, design defects, and failure-to-warn defects, which, while not formally embedded in European Union law, provides an analytically useful framework. The main conclusion is that warnings cannot be considered a general basis for exemption from liability. They cannot cure manufacturing defects, as this would undermine the regime's strict character by replacing the right to a safe product with a mere right to be informed of risks. In the context of design defects, the role of warnings is more limited and conditional. Where a reasonable alternative design exists, a warning cannot substitute for a safer design. Only where risks are irreducible, and no safer design is feasible, may an adequate warning suffice to render the product non-defective. Even then, warnings remain an imperfect safety mechanism, constrained by their dependence on user attention and behaviour. The article concludes that warnings are a necessary but inherently limited tool of risk regulation. They inform the assessment of defectiveness and may affect the apportionment of responsibility, but they cannot legitimize avoidably unsafe products.