Orange warning lights on the Peugeot 406 Coupe explained: what each lamp means and what to do, based on the handbook for cars built from January 2004.
Orange warning lamps on your dashboard are there to get your attention. They point to a system that needs checking, a fault that needs looking at or something you need to do yourself. Each lamp below tells you what it means and what to do next.
This guide covers the Peugeot 406 Coupe and is based on the handbook edition for cars produced from 1 January 2004. Some lamps only appear on certain versions, engines or destinations, so your car may not have every lamp listed here.
Scroll the table sideways.
| Warning | Urgency | In short |
|---|---|---|
| Fuel filler cap warning light | Action needed from you | Fuel cap missing or not screwed on |
| ASR/ESP stability indicator light | Get it checked soon | Stability system working, disarmed or faulty |
| Clogging of the particulate emission filter warning light (diesel engine) | Action needed from you | Particulate filter at risk of clogging |
| Anti-lock braking system (ABS) warning light | Get it checked soon | ABS fault, normal braking still works |
| Front brake pad wear warning light | Get it checked soon | Front brake pads need replacing |
| Engine diagnostics warning light | Get it checked soon | Emission control, injection or ignition fault |
| Pre-heating indicator light (diesel engine) | Information / status | Wait for it to go out |
| Water in diesel filter warning light | Get it checked soon | Water in diesel filter |
| Passenger air bag disarming warning light | Information / status | Passenger air bag off, or fault |
| Air bag warning light | Get it checked soon | Front, side or curtain air bag fault |
| Electronic immobiliser warning light | Get it checked soon | Electronic immobiliser fault |
This lamp shows the fuel filler cap symbol.
It comes on if the fuel cap is missing or has not been screwed on correctly.
What to do:
This lamp shows the ASR/ESP stability system symbol.
It comes on for a few seconds each time you switch on the ignition. With the engine running and the car moving, it flashes when the system is working. It stays lit continuously when you have disarmed the system.
What to do:
If you have disarmed the system:
If the lamp stays on or comes on while the engine is running and you have not disarmed the system:
This lamp shows the particulate emission filter symbol and is found on diesel engines.
When it comes on, you also hear an audible signal. If it flashes with the engine running, either the filter is overloaded or the engine has been idling for too long, which you may notice as white smoke from the exhaust. If you keep driving in the same way, the filter may clog.
What to do:
If the lamp flashes with the engine running:
If the lamp stays on:
This lamp shows the ABS symbol.
It comes on for 3 seconds each time you switch on the ignition. If it comes on when you are driving at over 8 mph (12 km/h), there is a fault with the ABS. Your car still has conventional servo-assisted braking.
What to do:
This lamp shows the brake pad wear symbol.
When it comes on, the front brake pads are worn and need replacing.
What to do:
This lamp shows the engine symbol. Whether your car has it depends on the engine.
It comes on each time you switch on the ignition. With the engine running, a steady lamp and a flashing lamp mean different things.
What to do:
If the lamp stays on with the engine running, there is a fault in the emission control system:
If the lamp flashes with the engine running, there is a fault in the injection or ignition system. On petrol engines, the catalytic converter could be damaged:
This lamp shows the pre-heating symbol and is found on diesel engines.
If the engine is warm enough, the lamp does not come on and you can start the engine straight away.
What to do:
This lamp shows the diesel filter symbol. Whether your car has it depends on the destination it was built for.
When it comes on, there is water in the diesel filter and the injection system could be damaged.
What to do:
This lamp shows the passenger air bag symbol.
When it comes on, you also hear an audible signal and see a message on the multifunction display. A steady lamp and a flashing lamp mean different things.
What to do:
If you have disarmed the passenger air bag:
If the lamp flashes:
This lamp shows the air bag symbol.
It comes on for 6 seconds when you switch on the ignition. If it comes on with the engine running, you also hear an audible signal and a message on the multifunction display tells you which front, side or curtain air bag has a fault.
What to do:
This lamp shows the electronic immobiliser symbol.
When it comes on, there is a fault with the electronic immobiliser.
What to do:
If a lamp comes on and you are not sure what it means, stay calm and stop somewhere safe when you can. Then check this guide or your handbook, and contact a PEUGEOT dealer if you still have any doubt.
Orange lamps rarely mean you must stop straight away, but they should not be ignored. A quick check now can stop a small problem from becoming a bigger one, so you can keep enjoying your 406 Coupe.
Related guides: Peugeot 406 Coupe (2003-2004) red warning lights, Peugeot 406 Coupe (2003-2004) green and blue lights and all Peugeot 406 guides.
Red warning lights are the ones that ask you to stop. On your Peugeot 406 Break they point to a problem with the engine oil, the coolant or the brakes, and the handbook tells you to stop immediately when they come...
Orange warning lights on your dashboard are there to flag a fault, a system that needs attention or something you need to do. They are not usually as urgent as a red light, but you should not ignore them.
Green and blue lamps on your dashboard are generally there to tell you that a system is working or switched on, rather than to warn you of a problem. Some of them can still point to a fault in certain cases, so it...