Translation guide
A light on a vehicle used in foggy conditions. In Japanese, the term is usually a direct loanword or a descriptive compound.
The light on a car or other vehicle designed to improve visibility in fog.
The most common term, a direct loan from English 'fog lamp'. Used in everyday conversation and car manuals.
The fog is thick, so please turn on the fog lights.
A more technical or formal term, literally 'fog light'. Often seen in written contexts like vehicle specifications.
A less common variant, also from English 'fog light'. Understandable but not as widely used as フォグランプ.
Where is the fog light switch?
This car comes standard with front fog lights.