Unlock the trunk of a 2005 Buick lacrosse

The trunk release is located on the passenger and drivers side door just above the window switch. You simply depress the car door unlock button for approximately 3 seconds. If your car battery is disconnected or there's no power to your car - you would have to go through the back seat by pulling the seat pull-down tab and manually release the trunk with the trunk safety escape puller. Then again there should be a button on the cars key fob.

A crowbar would work nice.