How to Prove Strict Liability for Defective Products Under Hawaii Law

When you purchase a power tool in Hilo, a kitchen appliance in Honolulu, or a child's toy in Lihue, you have a fundamental right to expect that the product is safe. Unfortunately, thousands of people are severely injured every year by products that fail spectacularly. When a lithium-ion battery explodes or a car's airbag fails to deploy, victims face mounting medical bills and lost wages. In these situations, Hawaii law provides a powerful legal avenue for financial recovery known as 'strict product liability.'

Under strict liability, the legal playing field is leveled. You do not have to conduct a massive investigation to prove exactly which factory worker made a mistake, or that the CEO acted carelessly. You simply must prove that the product was unreasonably dangerous when it left the manufacturer's control. Building a successful case requires deep knowledge of Hawaii's specific legal standards and access to expert witnesses. Therefore, it is highly recommended to seek professional representation. You can find a skilled product liability attorney in our US Lawyer Directory.

Understanding Strict Liability Under HRS Chapter 663

In Hawaii, personal injury and tort actions are generally governed by Haw. Rev. Stat. Chapter 663. However, strict product liability is a specialized legal doctrine created by case law that holds designers, manufacturers, and even retail sellers fully accountable for putting defective items into the stream of commerce. To win your case, your attorney must categorize the dangerous flaw into one of three distinct types of defects: manufacturing errors, design defects, or marketing defects (failure to warn).

Manufacturing Errors

A manufacturing error occurs when a product is designed perfectly fine, but an error on the assembly line makes a specific batch dangerous. For example, if a bicycle's design is safe, but a factory in China forgets to tighten the bolts on the front wheel of one specific bike, causing you to crash on a Maui trail, that is a manufacturing defect. Proving this usually involves comparing your broken product to a brand-new, correctly assembled version of the same product to highlight the factory's fatal mistake.

Design Defects and the Consumer Expectation Test

A design defect is much broader; it means the product was manufactured exactly as intended, but the blueprint itself is inherently dangerous. For example, a space heater designed to tip over easily without an automatic shut-off switch is defective by design. Every single heater of that model is dangerous.

To prove a design defect, Hawaii judges frequently use the 'Consumer Expectation Test.' As firmly established in the landmark case Ontai v. Straub Clinic and Hospital, Inc., 66 Haw. 237 (HI Supreme Court 1983), a product is legally defective in design if it fails to perform as safely as an ordinary consumer would expect when used in an intended or reasonably foreseeable manner. If you sit on a medical examination table and it collapses under your normal body weight, it clearly fails the consumer expectation test.

Failure to Warn (Marketing Defects)

Some products, like chainsaws or prescription drugs, are inherently dangerous and cannot be made completely safe. In these cases, the manufacturer has a strict legal duty to provide adequate warnings and instructions. A 'marketing defect' occurs when a product lacks warning labels about hidden, non-obvious dangers. If a harsh household chemical does not include a warning that mixing it with bleach creates a deadly toxic gas, the manufacturer is strictly liable for any resulting lung injuries because they failed to warn the consumer.

Step-by-Step Guide to Building Your Case in Hawaii

A successful strict liability claim requires preserving evidence from day one and acting quickly to file court documents.

Step 1: Secure the Defective Product

The single most important step is keeping the product. Do not throw it away, do not return it to the store for a refund, and do not attempt to fix it yourself. Place the broken item in a safe location. If your attorney cannot present the physical product to an engineering expert, proving strict liability becomes incredibly difficult.

Step 2: Establish the Medical Link

You must prove the defect directly caused your injury. Seek immediate medical treatment and inform your doctors exactly how the product injured you, so it is permanently recorded in your medical records.

Step 3: Draft the Legal Complaint

Your attorney will draft the complaint under the Hawaii Rules of Civil Procedure, asserting claims for strict liability, negligence, and breach of warranty. The lawsuit is filed alongside Form 2-A, Hawaii, Circuit Court, Civil Information Sheet and Form 1, Hawaii, Circuit Court, Summons in the appropriate county, such as the Third Circuit Court, Hilo or the Fifth Circuit Court, Lihue, depending on where the injury occurred.

Step 4: Expert Witness Depositions

To win under the consumer expectation test or to prove a manufacturing flaw, your lawyer will hire mechanical engineers, materials scientists, or medical experts. These experts will testify in depositions that the product was undeniably unsafe when it left the factory.

Financial Costs and Contingency Fees

Taking a massive corporation to court is expensive, but product liability attorneys shield victims from these upfront costs.

Timeline for a Product Liability Lawsuit

Product liability claims are complex and fiercely defended by corporate insurance companies. After filing the initial complaint, the 'discovery' phase-where both sides exchange documents and question experts-can take 12 to 18 months. If the manufacturer refuses to offer a fair settlement, the case will proceed to a jury trial. In Hawaii, you should expect the entire process from the date of the injury to the final check to take between 1.5 to 3 years.

Frequently Asked Questions (FAQ)