How To Write A Demand Letter For Auto Accident Settlement . Essentially, it outlines the circumstances of the accident, the injuries resulting from it, and the settlement you would like to receive. As you write the demand letter, you need to make it undercut the previous demand. Car Accident Demand Letter (Samples & Templates) How to Write from www.wordtemplatesonline.net What to expect from a car accident settlement; When writing the car accident settlement demand letter, focus more on the facts. To do this, both parties must agree to settle.