no reverse

[teal one]

Hi guys-been a while.
Granddaughter needed a ride-so the old man donated the SVX to her to use 'till she can get her life together. Last week she was on the interstate and the car started making a loud metallic sound-the noise quit, but after parking the car, found out there is no reverse. It already has a factory reman trans with ??? miles.
I can only assume the trans is toast,but with all of the electronics involved, only assume.
Is there any hope?
If not, there will be another SVX for sale, in Iowa if someone needs a project.

Many thanks
Jim