I don't believe Honda Element automatic transmission has a filter.
Honda Element was created in 2003.
If you change the brake fluid every 50,000 miles the calibers will last the life of the vehicle.
http://www.autotalk.com/how-to/honda-element/honda-element-03-04-keyless-remote-programming-instructions.html
5.33 quarts 5w20 with oil filter change
http://www.commandocaralarms.com/wiring/Honda/Element/
B = Change oil/filter 1 = Rotate Tires 3 = Change transmission fluid
It depends on the year, whether sold in the US or Canada, and which radio. If you don't have the original manual, then maybe you can find more specific info with the Honda Element Owners Club group. You can get the address by Googling.
There are many features of a 2003 Honda Element. The biggest features of the 2003 Honda Element would be the leather seats, the radio, and the air conditioning.
The 2006 Honda Element has a timing belt, not a chain.
How do you reset 2008 honda element service light?
Purchase a Purolator Cabin Filter. It comes with complete instructions.