A vehicle control system and a method for prolonging or extending the availability of certain safety-related features after an ignition unit has switched off or otherwise become inactive. The method can provide some safety-related features following an unintended ignition event, such as the type that can occur when the vehicle is involved in a multiple collision accident and the force of the initial impact unintentionally jars or switches the ignition unit off. In one example, the method uses a prolongation timer to temporarily power an airbag control module so that it is capable of sensing a crash and deploying an airbag for a period of time following the ignition being switched off.