What does the l and the 3 mean on the shifter on a 2010 Avenger?

What does the l and the 3 mean on the shifter on a 2010 Avenger?
The 3 means 3rd gear which is the lowest acceleration power setting. like when you are going down a hill you want to put it in lower gears so the vehicle is slower, so you don't go to fast.


I don't know what I means. look in the owners manual