The brass threaded inserts are pulling out of the handle. This is because someone at the injection mold press changed one of the processing parameters when the parts were molded.So they can't simply be fixed if they haven't broken yet?
Inserts are usually pressed in using an ultrasonic press. Basically, the insert is shoved into a hole that is an interference fit and as it goes in the ultrasonic vibrations melt the plastic as it goes in. Inserts pull out because the hole in the plastic was ever so slightly larger and not enough plastic melted to encapsulate the knurled edge of the insert that would normally hold it in place.
Nothing anyone can do to prevent them from pulling out if the handle is from the affected production run.
That said, in the county where I live both of the dealers suck so I'll pull my door panels and epoxy the inserts back in myself.
It may take me a couple of hours but it's less time than I'll waste at the dealer. Plus I don't have to worry about my car getting damaged or it coming back with new squeaks and rattles.