The wiring circuits in the vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of damage caused by electrical problems.

To check a fuse, look at the silver-colored band inside the fuse.

If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating.

Fuses of the same amperage can be temporarily borrowed from another fuse location, if a fuse goes out. Replace the fuse as soon as you can.

To identify and check fuses, circuit breakers, and relays, see Engine Compartment Fuse Block (CTS-V Wagon) or Engine Compartment Fuse Block (CTS Coupe and Sedan) or Engine Compartment Fuse Block (CTS-V Coupe and Sedan) or Engine Compartment Fuse Block (CTS Wagon) and Rear Compartment Fuse Block (CTS Wagon) or Rear Compartment Fuse Block (CTS-V Wagon) or Rear Compartment Fuse Block (CTS Coupe and Sedan) or Rear Compartment Fuse Block (CTS-V Coupe and Sedan).