yea, I don't recall seeing a minimal speed in the manual. Though I'm not so sure this is a safety feature as such. An auto will easily get up to 10 mph eventually if you just leave it is D on flat ground.
Titanium Grey Mazda3 GT w/ GFX, leather and Sparco pedals
Driving in reverse requires lots of care.
Ones needs to get out of car and see what he is backing up to, especially when car has been idle for some hours. Something could have sneaked up behind you.... :shock: