No drive? Have you had your diff replaced under recall?
I also wonder whether a speed sensor of some sorts has caused your problem. Obviously the gearbox needs to know the speed the vehicle is travelling at, on its own one wouldn’t think about it, but coupled with the EAS locking into standard height which it does when it can't determine how fast the vehicle is travelling so it defaults to standard (you wouldn’t want to take a corner at 70 in extended height) Even with the above I would have thought the gearbox should have been able to get into "limp home mode" so take the above with a pinch of salt.
Dan