Also recalled in CanadaThe official notice
Defect
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2016-2017 Tundra vehicles equipped with a resin rear step bumper and resin reinforcement brackets (vehicles with chrome step bumpers are not affected). In the event of an impact to the corner of the bumper, the resin bracket may be damaged but not be noticed.
Safety Risk
If a person steps on the corner of the bumper that is damaged, a portion of the bumper may break away, increasing the risk of injury.
Remedy
Toyota will notify owners, and dealers will replace the resin rear bumper reinforcement brackets with steel ones, and replace the rear bumper tread, free of charge. The recall began on May 21, 2017. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is H0C.