Originally Posted by
Taz
Do NOT try and flash the 2009 Corvette T43 calibration ... not certain about Holden vehicles ... but in the North American market 2009 T43 and 2011 T43 are different controllers (generally) - and the corresponding calibrations are not interchangeable. Also, highly doubtful that a 2011 ECM OS would communicate properly with a 2009 TCM OS.
There are Australian based tuners that should be able to enable the TUTD option in your current TCM OS - that would be the best course of action - although there would be a cost associated.