Gearbox red lights.

[jmw748]

I've not put this in the gearbox thread, because I'd like to get as many views as possible please.
I had a full, guaranteed gearbox rebuild last month (2.5K).
We've been on holiday for 2 weeks and got back to a low, but functional battery. Yesterday, I left the TV on for the kids in the car for 10 mins and the inevitable happened - it died! Started instantly when jumper cables were connected, so all good. 30 mins later ( car starts fine), I reverse out of a space and engage D - the gearbox indicator in the dash shows all reds and the gearbox goes into limp mode. I switch off the car at the lights, restart her and all is good. Not been a problem since.
Last time I had all reds, it was the usual warning before terminal issues killed the 'box. It's under warranty, so i want to warn the garage that it's playing up again.

My question is: Can electronic gremlins after a battery drama cause the gearbox ECU or solenoids to play up? To me, this is feasible, as the car "sets itself" again. If not, I need to register the glitch and get her back in for a health check!

Any experience of this please?