Posting for my sister — rear-ended 2 weeks ago, at-fault driver ghosting their own insurer. How bad is this?

I went through almost this exact situation last year. The at-fault driver ignored their insurer for weeks and I kept waiting, thinking it would sort itself out. It didn't — I finally just filed through my own insurance and let them chase the other company. My rates didn't actually go up because I wasn't at fault, and my insurer confirmed that in writing. Please tell your sister not to wait any longer.

The other driver going silent is actually a known stall tactic — whether intentional or not, it benefits the at-fault side because the longer things drag, the harder it is to document injuries and damages. The other insurer can eventually deny the claim if they "can't confirm" what happened without their policyholder's statement. Your sister needs to stop waiting on them and take control of this.

Former adjuster here. When a policyholder doesn't cooperate with their own insurer, the company can actually issue a "reservation of rights" or in some cases deny coverage entirely — which could leave your sister having to sue the driver personally. That said, being rear-ended at a stop is one of the cleaner liability scenarios we'd see. No police report hurts, but it's not a dealbreaker. Her photos, the other driver's insurance card, and any witnesses or traffic cameras in the area can still build a story. The neck pain showing up now is also very normal and very documented in rear-impact cases — get that urgent care visit on record ASAP.

Really glad she's finally going to urgent care. Soft tissue injuries from rear-end collisions notoriously don't show up right away — the adrenaline masks a lot. Two weeks is actually still within a normal window for symptom onset to be taken seriously medically. Just make sure she tells them specifically that this started after the accident. That paper trail matters a lot.

A couple of practical things worth knowing: most states have statutes of limitations for personal injury claims that are measured in years, not weeks, so the claim isn't "dead" — but evidence does get harder to gather as time passes. Surveillance footage from nearby businesses or traffic cameras gets overwritten fast, sometimes within 30 days. If there were any cameras near that intersection, someone needs to send a preservation letter or request soon. Also, filing with her own insurance (assuming she has uninsured/underinsured or collision coverage) doesn't automatically mean a rate increase if she's documented as not at fault. Not legal advice, just process stuff.

Not legal advice, but I'll say this: rear-end accidents carry a strong presumption of fault against the striking driver in most jurisdictions, and that presumption doesn't evaporate just because there's no police report. What does matter is getting her injuries documented now and preserving whatever evidence still exists. If the other insurer keeps stonewalling, a consultation with a PI attorney costs nothing and could clarify her options fast. Many handle exactly this kind of situation.

Honestly just the fact that you're doing all this research for her says a lot. I hope she listens to you. The rate thing is such a common worry but it sounds like it might not even be an issue if she's not at fault. Just get her to that urgent care and take it one step at a time 💙

Three things she needs to do like, today: (1) go to urgent care and mention the accident explicitly, (2) call her own insurance and report the accident — not necessarily file a full claim yet, just report it, (3) write down everything she remembers about the crash while it's still fresh. Stop waiting for the other driver to do the right thing. They're not going to.