Australian Car Repair Issues? Ask an Auto Mechanic for Answers ASAP
If you want to do this yourself at home, I would suggest you make sure you can undo the level plug on the RHF of the transmission case above the pan.
Once you can loosen the plug, a level check at warm temperature would be the first thing to check.
Engine running, in Park, take out level plug, should just trickle.
If the level is low, there must be a leak somewhere also.
You can top up with 95LE trans fluid.
I hope my advice has been of assistance to you.
Please rate my service at your earliest convenience.