4x4 lo no joy

My '09 6 speed manual won't actually go into 4wheel lo, it's just beeps and flashes. I tried switching it while in gear vs neutral, no joy. Any ideas?

 

Are you stopped in neutral?

 

And is your brake pedal mashed all the way to the floor? Mine won't change unless I'm really on the brake hard.

 

you have to be at a full stop and in neutral. If it won't go in, roll a little forward or back and then try again

EDIT: for manual, you have to have the clutch to the floor as well

 

Thanks guys, I figured stopped with brake was sufficient ...didn't think to have clutch in too.

 

yup clutch in and mashed to the floor for the manual.