Not a chance, see below for why.
@Athens-Nash Guild 33: Welcome aboard, and I have sympathy.
Those GAD guitars were built under Fender ownership. Even though it's the same factory (GREE/ Farida), they're not necessarily the same necks on the new equivalents (OM-150ce, NOT the F250ce mentioned earlier, that model's a 17" lower bout) that are being built under Cordoba ownership.
Also be aware the neck might be padauk like the body, I couldn't find a ref, but that may not be the deal killer. The other GAD-30's had 'hog necks.
The real "roadblock" is that Fender never stocked spares here, and I doubt they did at GREE, either, because:
Fender's warranty policy on these was to repair OR REPLACE at
their discretion and we've seen 3 stories here over the years from owners who were offered replacements of an "equivalent" model, for guitars they'd bonded with. I've only ever heard of one repair: a loose brace.
Needless to say it leaves a bad taste, but the point is Fender never intended to do domestic service on those because the cost of repair virtually always exceeded the cost of replacing.
And that's before even addressing the necessary finish repairs which are a gigantic pain in the butt with poly.
Don't believe they're equipped to repair poly finishes in Oxnard since they never applied one there, let alone the new Yamaha ownership complication.
Why should Yamaha even contemplate attempting a repair on a guitar they didn't make and which is guaranteed to be entirely problematic from sourcing parts to repairing the finish?
I think most owners would understand the issues and begin searching for the replacement.
Unless you were Elon Musk in which case you could just buy Yamaha, tell 'em to fix it at any cost including parts and tooling fabrication, and then let someone else take over the company when you got your guitar back.