* Inertia Switch: This is the quickest and most practical method. The inertia switch is designed to cut fuel in a collision. Locate the inertia switch (usually under the dash or in the engine compartment - consult your owner's manual for the precise location). It's usually a small, square or rectangular box. Press the button to reset it – if it's tripped, the button might be pushed in, if not its normally just a rocker switch. If it's tripped and you push and it clicks back out, fuel will be restored.
* Fuel Pump Relay: This is a more involved method. Disconnecting the fuel pump relay will stop the fuel pump from operating, thus cutting off the fuel supply. You will need to locate the relay in your underhood fuse box (check your owner's manual) and pull it out. This requires some mechanical aptitude. Refer to your owner's manual for the location of the relay and its markings.
Warning: Disconnecting the fuel pump relay is a more involved process and requires familiarity with your vehicle's electrical system. Incorrectly handling relays could damage your vehicle's electrical system.
In short: Focus on the inertia switch first. It's the designed emergency shutoff and is far easier to access and use. Only resort to disconnecting the fuel pump relay if the inertia switch is inaccessible or ineffective. Always consult your owner's manual for specific locations and procedures.
