TSB: REVISION NOTICE November 05, 2019 Rev1: ? The Warranty Information section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2007 ? 2020 model year Tundra vehicles may exhibit surface corrosion and/or perforation corrosion on the back of the cab near the lower corner(s) of the center stop lamp assembly. Follow the Repair Procedure in this bulletin to address this condition.