Two problems related to engine shut off without warning have been reported for the 2004 Chevrolet Suburban. The most recently reported issues are listed below.
Bought this vehicle a few days before the first incident. I drove it home from over two hours away, drove it all around the day before, no problems. Then I was driving down a bypass at about 60 miles an hour and the engine shut off! I had no power steering, nothing! I was able to pull over, shut it off and once I turned it back over it was just fine. So I cautiously started driving, it happened again a few miles down the road only this time it stalled then regained power and quickly shut off again. Once engine was turned off and restarted, it was fine, it did this to me 5 times within 5 miles. I almost got hit two of those times by other vehicles, once when I was turning onto a road. I am glad my kids were not in it. I am scared to drive on two lane roads without room to pull over.
The vehicle will shut off at interstate and low speeds and show reduced power and stability system disabled. This is very dangerous, I was nearly killed on the interstate by and 18 wheeler coming up behind me when the engine shut down. .