Normal. however, when you switch from 4hi to 2wd it will blink because it's still in 4wd. The easy way to get it out of 4wd is to turn off 4wd right before you get onto dry land. The front tires need to slip and rotate at a different speed than the back wheels. An easy way to tell is if driving down a snow coverd road, turn it into 4wd, goes in just fine, put it back in 2wd while still driving, and tap the gas a little bit, it will come out oalmost instantly. Or if you turn it off before you start to turn (on a gravel road, snow, ice, anything slick!) it will unlock from 4wd instantly.
And even if going down the road, if you switch gears, between 2-3rd gear, it will disengage.
Funny story: I was coming back from Craig (4hr drive one way) with two motors and a tranny in the bed of my truck. Got stuck in traffic on the side of a mountain. Well my buddy was interested in the Titan, we were in stop and go traffic..took us over 4hrs to go 2 miles...and so I started telling him features of the truck. Explained how easy it was to switch into 4wd on the fly (he has an old truck, manual option, never owned a new truck). And well i put it back into 2wd.. yeah I was stuck in 4wd the whole time going up this mountain, under load, on dry pavement. Burned half a tank of gas LOL and I couldn't do anything. Stuck in the left lane, I would try to leave a gap, floor it, but going upgrade, underload, in 4wd I couldn't get into high enough speed to unlock from 4wd
