[ree]

I can't speak for H3s since I don't have one, but this discussions been had for H2s:

Early on before I had my H2's rear slip yoke replaced, my transfercase disengaged immediately when unlocking it. Now it does what you're describing. I don't have to monkey with it, switching it in and out of lock. I just have to drive about .4+ miles. Backing a ways after the switch doesn't help it unlock any quicker.

Some people's H2s work this way and for others the transfer case disengage immediately. Consensus is that either way is normal as long as it disengages fairly quickly after you get going.

If it takes more than a half mile (straight) or or some tight turns to unlock it, then I'd be concerned.

BTW, if you force it, you're just going to the wheels will hop/skip to match front and rear axle speeds until it unlocks. If it's just for a brief period of time, it'll be okay, but habitually driving that way will cause wear problems.