10th Cir.

Nelson v. Toyota Motor Corporation

June 1, 2026 ·1:20-CV-03119-NYW-KAS ·Unanimous ·Holmes · By Maria Santos

The Tenth Circuit affirmed the district court's judgment for Toyota Motor Corporation because the appellant failed to preserve his sufficiency-of-the-evidence challenge by not filing a required post-verdict motion under Federal Rule of Civil Procedure fifty point one b.

Background

Wesley Nelson, a passenger in a Toyota RAV4, was severely injured when the vehicle crashed after the driver suffered a diabetic episode. Nelson sued Toyota for strict liability manufacturing defect, claiming the airbags and seatbelt pretensioners failed to deploy. The jury found no manufacturing defect existed. Nelson did not file a motion for judgment as a matter of law under Rule fifty point one b after the verdict and appealed directly, arguing the evidence was insufficient to support the jury’s verdict.

The court’s reasoning

The panel held that Federal Rule of Civil Procedure fifty point one requires a two-step procedure to challenge the sufficiency of evidence: a pre-verdict motion under subsection a and a post-verdict renewal under subsection b. The Supreme Court’s decision in Unitherm Food Systems, Inc. v. Swift-Eckrich, Inc. clarified that a post-verdict motion is necessary to preserve the issue for appeal. Because Nelson failed to file a Rule fifty point one b motion in the district court, the appellate court lacked the power to review the sufficiency of the evidence supporting the jury’s verdict.

What it means going forward

This decision reinforces the strict procedural requirement that parties must file post-verdict motions under Rule fifty point one b to preserve sufficiency challenges, ensuring that district courts have the first opportunity to correct potential jury errors before appellate review.