Editorial Comment:

There are no laws which seem to deal with the kind of issue which you describe.

You may or may not have bought inappropriate tires.

Part of this depends on what kind of conversation you had with your dealer concerning the driving you normally did, and what conditions you wanted to be ready to handle. Did you tell your dealer that you'd be hauling a heavy trailer, for example?

Even so, another part of this situation depends on whether or not you adjusted your tire pressure between when you were running without the trailer, and later when you were hauling? If were given appropriate tires but you didn't adjust your pressure that's what caused the explosion ... from the little you've told me the tire exploded because it was not inflated sufficiently to meet the load requirements you were placing on it.

Here's a couple of links that might give you some insight into the issues surrounding the choice of tires for this kind of vehicle.

Tire rack talks about load range

and a Hummer user discusses his experience withLoad Rating.

You also might want to read: http://www.tire-information-world.com/tire-problems.html.

TG