If you have been following any of the other Lambda forums you probably know the car battery on the Enclave is not under the hood, it's under the floor in front on the 2nd row seats. (refer to http://www.acadiaforum.net/forum/index.php?topic=58.0) I'm wondering if there is any concern here about chemicals. Don't batteries emit Hydrogen gas sometimes? ??? Without actually seeing the setup, I was wondering if GM has done anything with safety in mind here.