2005 Mercury mountaineer shut off switch?

The 2005 Mercury Mountaineer features a fuel shut-off switch, also known as an inertia switch, designed to cut off fuel flow in case of an accident. This switch is typically located in the rear cargo area, near the spare tire. If the vehicle has stalled or won't start after an accident, it's a good idea to check this switch to ensure it hasn't been triggered. To reset it, you simply press the button on the switch until it clicks.