Do i need to change transmission filter

You have a CVT, and I don't think there is a serviceable filter. Just change the fluid regularly with the correct fluid.

You will be surprised but there are actually 2 of them. One is Cooler Line Return Filter located under Transmission Oil Cooler (looks like oil filter insert) and the other is a Filter/Strainer accessed by dropping transmission oil pan (looks like metal box with square pickup tube). When ordering make sure that you getting one for AWD (different for FWD). Also, when ordering transmission pan gasket count number of holes (auto stores sell 2 different ones and their fit system is messed up). And yes, you should change both filters, clean magnets/pan and change CVT fluid. My change interval suggestions: cooler line filter every 105,000, strainer/pan drop every 60,000 and CVT fluid 1 drain and fill every 15,000-20,000 miles. My 2011 FWD is at 179,000 miles (original trouble free CVT transmission).