Rear Fog Light Indicator
What it means
Shown in amber as a lamp with straight horizontal beams pointing right, crossed by a wavy line, this indicator means the rear fog light is on. It is an on indicator, not a fault; use the rear fog light only when visibility is very poor, such as in thick fog or a severe dust storm, and switch it off afterwards because it dazzles drivers behind you. It does not light at key-on unless the fog light is switched on.
Symptoms4
- The indicator is on after using the rear fog switch.
- A strong red light at the rear that looks like a brake light.
- Drivers behind you are dazzled or think you are braking.
- The indicator is on but the rear lamp does not actually light when there is a fault.
Possible causes4
- The rear fog light switched on, on purpose or by accident, at the light switch.
- The switch left in the fog position after the storm or fog has cleared.
- A blown rear fog bulb or fuse when the indicator is on but the lamp does not light.
- A faulty light switch, relay or wiring.
How to diagnose4
- Check the light switch position and turn the rear fog off if visibility is good.
- See the owner's manual; on many cars it only works with the headlights or front fog lights on.
- Ask someone to confirm the rear lamp lights, noting that many cars have only one rear fog lamp.
- Check the bulb and fuse, then the switch and wiring at a workshop if needed.
How to fix5
- Switch the rear fog light off as soon as visibility improves.
- Replace a blown bulb with the correct wattage.
- Replace a faulty fuse or relay.
- Repair the wiring or light switch if confirmed faulty.
- Confirm the lamp lights and switches off together with the indicator.
Repair cost
In Saudi riyals; the highlighted part is the expected range for this fault.
The indicator itself needs no repair; the range covers the typical fault of the function, from a bulb or fuse to a light switch.
Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026
Frequently asked questions
Should I use it in light dust or at night?
No, it is meant for near-zero visibility. In normal visibility it dazzles drivers behind you and can be mistaken for a brake light.
How is it different from the front fog light?
The front fog indicator is usually green, points left with slanted beams and lights the road ahead; the rear one is amber, points right with straight beams and helps drivers behind see you.
Why does only one lamp light at the rear?
Many cars have a single rear fog lamp, usually on the driver's side; that is the design, not a fault.
This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.
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