Plaintiff Robert Scheuer insisted Thursday he had no recollection of key events on the day he suffered injuries he claims would not have happened but for a defectively designed ignition switch on his General Motors car.

Testifying in his attempt to prove General Motors liable for back and neck pain that changed his life, Scheuer said he did not recall making phone calls during the hours he claimed to be unconscious after his 2003 Saturn Ion struck some trees in Bristow, Oklahoma, at about 2 p.m. on May 28, 2014.

Attorneys for General Motors are attempting to discredit Scheuer's statement that he was unconscious for some three hours after the accident, and that he languished in his car undiscovered by passersby or police.