It's not the trans that's for limp home mode. It's an engine fault. It won't rev past 2000 rpm and if you slowly wind it up to 80 kms u can't go faster than this or the engine drops out and u can't throttle it for about 5 seconds then it resumes. I have had it do it a few times including about 2 months back driving back from caloundra to my house in pacific paradise I could not exceed 80kms and rev over 2000 rpm. Hence limp home feature