2007 Cadillac DTS Owner's Manual - Page 444

Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating. If a fuse should blow, see your dealer for service immediately. 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. 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. The fuses are located in two fuse blocks, one located in the engine compartment, and the other under the rear seat. If a fuse should blow, have your vehicle serviced by your dealer immediately. Underhood Fuse Block The underhood fuse block is located on the passenger's side of the engine compartment. Remove the fuse cover and secondary service cover to access the fuse block. 444