Motor vehicle defect cases include claims involving not only passenger automobiles, but also motorcycles, trucks, and vans. Claims may be based on defects in the body and frame, brakes and braking system, cooling and temperature control system, electrical system, engine assembly, exhaust system, fuel system, lubrication system, passenger compartment, steering and suspension systems, transmission and drivetrain, and other parts and accessories.

Unlike an ordinary personal injury claim for negligence after a motor vehicle accident, in order to establish a vehicle manufacturer or seller's liability for a car defect, you do not need to show that they were careless. Instead, liability in motor vehicle defect cases is controlled by the doctrine of strict liability. Regardless of what steps a manufacturer or dealer says it takes in designing, assembling, or handling a motor vehicle, you can make a strict liability claim based on a motor vehicle defect -- without making any showing as to carelessness -- if all three of the following conditions exist:

• The vehicle or one of its components had an "unreasonably dangerous" defect that injured you. The defect can come into existence either in the design of the vehicle, during manufacture, during handling or shipment (i.e. delivery from the manufacturer), or through a failure to warn consumers of a dangerous aspect of the vehicle.

• The defect caused an injury while the vehicle was being used in a way that it was intended to be used. For example, you may not be able to recover if a sports sedan were used to cross a stream.

• The vehicle had not been substantially changed from the condition in which it was originally sold. "Substantially" means in a way that affects how the vehicle performs.

Defenses to Car Defect Claims

The vehicle manufacturer and/or the seller may have a defense to your strict liability claims, particularly if you have owned the vehicle for some time, if it can be shown that you knew about the defect but continued to use the vehicle anyway. This is usually established either through the vehicle's condition (which the manufacturer's or seller's insurance company will be able to examine if you bring a claim) or from your own description of your use of the vehicle. In some states, a manufacturer or seller may also be able to defend against your motor vehicle defect claim under the theory that your contributory or comparative negligence was the cause of, or a factor in, your injuries.