transmission warning light!

the little red warning light came on the other day,checked the oil level in the autobox it was a little low,so topped it up and its still on..not too sure what else to check,still drives and changes ok no weird noises or anything,it does flicker slightly when going over bumpy ground..could it maybe be a faulty switch

i do tow a trailer most days for work.

i would check switch and wiring theres no low oil warning light but there is temp warning light

Replace the oil temp sensor , it's the most likely cure and a common fail part.

will do cheers for the info, try and get it done at weekend,its went off again,so prob is a duff switch.