I am the second owner of my Rainier. At 65000 miles, I had to replace my engine due to a cracked head (coolant got in the oil and wiped out my bearings). I am experiencing turning problems at low speeds and now my security light comes on and vehicle will not start. My GM rep. told me I was out of luck when the engine blew, and the repair costed me over $4000 to do myself. GM needs to actually stand behind their vehicles. I have owned GM vehicles all of my life and am no where near satisfied with this one.