The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links. This greatly reduces the chance of fires caused by electrical problems.

Be sure you replace a bad fuse with a new one of the identical size and rating.

If you ever have a problem on the road and do not have a spare fuse, you can borrow one that has the same amperage. Just pick some feature of your vehicle that you can get along without -- like the radio or cigarette lighter -- and use its fuse, if it is the correct amperage. Replace it as soon as you can.

Your vehicle also has a special fuse in the battery box for the 42-volt batteries. If this fuse has failed and needs to be replaced, the vehicle will be disabled and you will need to have your vehicle repaired by your dealer. Do not attempt to self-service this fuse.

The underhood fuse block is in the engine compartment on the driver's side of the vehicle near the main underhood fuse block. Lift the cover for access to the fuse/relay block. See Engine Compartment Overview for more information on its location. For more information on the main underhood fuse block see "Underhood Fuse Block" in the Index of your owner manual.

To remove fuses, hold the end of the fuse between your thumb and index finger and pull straight out.