We've been experiencing some issues with out 3.0L Suburban in 4HI since we've had it. The symptoms first manifested when I forgot to take the truck out of 4 Hi to climb some ramps on a sloped driveway. The truck was then driven 5 miles on flat terrain (by my wife -- and I know its not good for the vehicle) and during parking the vehicle began to lurch and bind when she turned the wheel (Felt like zero power steering and required a ton of power to even move). I confirmed this when I went to find out what she was talking about in the parking structure. This was all on surface streets so no greater than 50mph. It was completely resolved when I took it out of 4HI back into 2WD. The dealer had the vehicle for several days and couldn't re-create the issue, and of course they said the condition was normal (yea, no I've owned 4x4 vehicles for more than 25 years, I've never experience that). It happened again several months later -- binding while steering when we encountered some slippery roads and needed 4HI to accelerate from a stop. I took it out of 4HI back to 2WD, the problem went away. It seems sporadic. Today when driving slow on some icy mountain pass roads (below 25mph) the vehicle drove fine, but there was a smell (like a burning clutch). The smell was far more apparent inside the vehicle than outside. I'm at a loss. I'm going to replace the transfer case fluid when I get back from our ski trip (we're only at 25k miles). I rarely use 4HI because we don't need to, except when we do. Perhaps the fluid is low from the factory? Either way, has anyone else experienced this in their Suburban? Thanks!