An example of a design defect in a car might be an electrical system prone to battery fires or a brake system that stops working at high speeds. The defect may result from a flaw in the product design.How a Defective Product Lawyer Could Help. Common examples include faulty electronics that overheat, dangerous toys with small parts, and defective automotive components that cause accidents. When a car manufacturer uses a faulty collision sensor, for example, an airbag can fail to deploy at the right time. This guide considers claims for a defective product under the Consumer Protection Act. Engineer B advises Engineer A's staff to allow a higher percentage of chips to pass through quality control. Fill out a Free Case Evaluation form right now or call 1-844-RESULTS. Types of Defective Products. If a product is in stores, online, or placed in the marketplace in another way, it should not be defective.