What is the 2018 chevy traverse fog light bulb size?

The 2018 Chevy Traverse has a 3157 fog light bulb. This is a pretty standard size bulb for the fog lights and You should be able to get it at any major auto parts store. If Your fog lights are not working then the first thing to check are the fuses to them. These can be found in the fuse panel under the hood of Your vehicle. If they are fine then the next thing to check is the wiring to the fog lights. If the wiring is loose or damaged then that could cause problems with it working. If both of those are fine then it is most likely that a bulb has burnt out and will need to be replaced.