Here is an example of what a demand letter might look like in a car accident claim where the crash resulted in serious injury. Feel free to use it as a template to follow when drafting your own correspondence to the at-fault driver's insurance adjuster.
If settlement talks between you and the insurance company stall, talk to a car accident lawyer. A knowledgeable attorney can help you come up with a strategy to get the best outcome for your case and talk you through the pros and cons of filing a car accident lawsuit. You can connect with a lawyer directly from this page for free.