Rear fog light indicator
An amber (yellow) light that shows the rear fog light is on.
Easily confused with
How to read it
The symbol is a lamp facing the opposite way from the headlamp symbols, with straight lines of light to its right crossed by a wavy line. UN Regulation No. 121 sets the rear fog lamp tell-tale as yellow, where the front fog lamp’s is green. Mazda’s Mazda3 manual says the rear fog light indicator lights while the rear fog light is on, and Nissan’s 2024 Qashqai manual says the same.
Also searched as: amber fog light symbol, rear fog lamp indicator, rear fog light symbol.
Dashboard symbols vary by manufacturer. The vehicle's owner's manual or a qualified mechanic can say what a light means for a particular vehicle.
When it can be used
Mazda’s Mazda3 needs the headlights on before the rear fog light will come on, and keeps it on if the headlights are turned off while the position lights stay on. Canada’s regulations require the parking, tail, license plate and side marker lamps to be lit while the rear fog lamps are on.
What the manual says to do
Nissan’s 2024 Qashqai manual says the rear fog light should only be used when visibility is seriously reduced, generally to less than 100 m (328 ft). The UK Highway Code gives the same distance for using headlights, allows front or rear fog lights then, and says they must be switched off when visibility improves.
Look-alikes
The front fog light indicator has the lamp on the right with slanting lines, and UN Regulation No. 121 makes it green.
Read next
- Next in Dashboard warning lightsDaytime running lights indicatorOn cars that have one, a green light that shows the daytime running lights are on.
- The same shape in Accessibility symbolsAssistive listening symbol (ear)An ear with a diagonal bar across it is the International Symbol of Access for Hearing Loss. It marks an assistive listening system: a loop, infrared or FM system that sends sound to hearing aids or headsets.
More dashboard warning lights
The same shape elsewhere
Browse symbols drawn with curves and waves or lines.
Sources
- Regulation No. 121: Uniform provisions concerning the approval of vehicles with regard to the location and identification of hand controls, tell-tales and indicators, UN Regulation No. 121, United Nations Economic Commission for Europe (text published by Japan's Ministry of Land, Infrastructure, Transport and Tourism), Table 1, items 7 and 8
- Mazda3 Owner’s Manual: Rear Fog Light, Mazda Motor Corporation, Switches and Controls: Rear Fog Light
- 2024 Nissan Qashqai Owner’s Manual: Rear Fog Light (Where Fitted), Nissan Motor (GB) Ltd (Nissan Ireland website), Rear fog light (where fitted)
- The Highway Code: Driving in adverse weather conditions (226 to 237), Department for Transport (GOV.UK), Rule 226
- Motor Vehicle Safety Regulations (C.R.C., c. 1038): Identification of Controls, Tell-tales and Indicators, C.R.C., c. 1038, Schedule IV, s. 101, Government of Canada, Justice Laws Website, s. 108(16)
Researched, edited and approved by Rory Hansen before publishing. Last reviewed October 9, 2026. How we research
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