A dual function mounting bracket is affixed to a hydroformed roof side rail to allow the connecting brackets to be located at the same position as previously known despite the use of a hydroformed roof side rail frame member that has a substantially different shape and configuration. The dual function mounting bracket has a first mounting surface projecting upwardly from a second mounting surface to provide support for a grab handle connecting bracket. The second mounting surface provides support for the connecting bracket of a side curtain air bag. The second mounting surface is also configured with a pair of side tabs and a front tab for welding the mounting bracket to a hydroformed roof side rail. The grab handle spans between the mounting bracket and a spaced apart sole function mounting bracket. A bead between the first and second mounting surfaces on the dual function mounting bracket provides stiffness.