What is the test to overturn a general release where a plaintiff has been injured in a motor vehicle accident?

Early notice of claim is important to an insured for several reasons. An early settlement can cap liability as to those injuries or damages that the parties were aware of at the time of settlement and the results of those injuries or damages. Mangini v. McClurg, 24 N.Y.2d 556, 568, 301 N.Y.S.2d 508, 518, 249 N.E.2d 386, 393 (1969) (holding that a party seeking to overturn a general release must show that "he did not know and could not know of the later revealed injuries"); Pokora v. Albergo, 130 A.D.2d 473, 515 N.Y.S.2d 56, 56-57 (2d Dep't 1987).