10. After the body is primed, robots apply the LASD. Here you can clearly see the sound deadener (black material) after it has been added to the floor and dash area. Tim Herrick, Assistant Chief Engineer, explained that this noise-abatement material is applied to very specific areas to significantly eliminate sound generation from under the vehicle; be it from the road or powertrain. This material is one of the reasons why the cabin area of the GMT900 SUV is so quiet.