"When did this happen, and when did you notify us?" That is the adjuster question that can make or break a Wisconsin uninsured motorist (UM) claim after a hit-and-run.

For injuries from a Wisconsin crash, the general lawsuit deadline is usually 3 years from the date of the wreck. But do not treat that as your safe window. Your own auto policy can require prompt notice to the insurer, and carriers use delay as a weapon, especially after Memorial Day, July 4th, Labor Day, or Thanksgiving hit-and-runs when drunk-driving crashes spike around I-41, Highway 441, and busy Appleton corridors. If the other driver is unknown or has only bare-minimum coverage, you may be looking at a UM or UIM claim on your own policy, and late notice can trigger a denial fight.

What you need to prove it, right now:

• The police report number from Appleton Police Department, Outagamie County Sheriff's Office, or the Wisconsin State Patrol if it happened on I-41 or another state highway.
• Your insurance policy declarations page showing UM/UIM limits.
• Photos of vehicle damage, skid marks, debris, road conditions, and the scene.
• Any witness names, phone numbers, dashcam video, business surveillance, or 911 call records.
• Medical records tying your injuries to the crash, plus wage-loss proof if you missed work.
• If police did not investigate, the required Wisconsin crash reporting paperwork may still matter if there was injury or enough property damage.

Do not wait for the insurer to "see what turns up." If there is no plate number, they may question whether another vehicle was involved at all. That is why independent proof matters so much. Get the claim opened immediately, ask for the claim number in writing, and preserve every record showing the hit-and-run happened and how it hurt your ability to work.