According to the California Department of Insurance, you’re required to report a traffic accident to the California Department of Motor Vehicles (DMV) within 10 days of the crash IF there’s an injury or if damage to the vehicle(s) involved is greater than $750.
If you don’t report the crash to the DMV, your license might be suspended. You may also face other difficulties if you delay reporting the crash to the authorities. That includes difficulty getting much-needed compensation from insurance companies for your vehicle repairs and medical expenses.
Insurance companies could use your delay as evidence that your injuries aren’t serious. And the longer you wait to report the crash, the longer you must wait for the compensation you’re owed.