A request for an amended report is fine, but you can also sit down with your personal injury attorney and fill out your own report to be filed. You should call your attorney and schedule a meeting. Good luck.
in reality, police reports have absolutely no value as evidence as to how the accident happened. They are not admissible at trial as to how the accident happened as they are hearsay. If the officer that prepared the report actually saw how the accident happened it may come in, but usually this is not the case. I have a case where the police report was completely wrong, and I know this because I found video of the crash from a security camera after the report was filed.