TOYOTA issued a recall on the TUNDRA model

On certain vehicles operated in areas of heavy road salt usage, excessive corrosion of the rear cross member may cause separation of the spare tire stowed under the truck bed. Corrosion of the rear cross member may also affect the functionality of the rear brake line at the proportioning valve. A spare tire that separates during vehicle usage could impact nearby persons or objects resulting in personal injury and/or vehicle and property damage. Correction: Dealers will inspect the rear cross member and surrounding components and, depending on the amount of corrosion detected, either apply a corrosion-resistant compound or replace the cross member assembly.