With a broken bracket weld, there is a potential for the liftgate bracket to gradually bend inward allowing the lift cylinder ball stud to disengage, unexpectedly allowing the liftgate to fall from an open position.
Structure — Body — Hatchback/Liftgate — Support Device/Strut
Dealers will install liftgate reinforcement brackets. Depending upon the condition of the liftgate sheet metal in the area of the bracket, dealers may also install a larger reinforcement.