Green and blue warning lights on the Peugeot 408 (2026 on) explained: what each lamp means, how it lights up and whether you need to do anything.
Green and blue lamps on your dashboard are information and status lights. They tell you that a system or function is switched on or working, so in normal use they are nothing to worry about.
This guide covers the Peugeot 408 I, based on handbook edition ed02-26 for vehicles produced from 09/02/2026 onwards. Some lamps only appear on certain versions or depend on the equipment fitted to your car, such as the PHEV or BEV models.
Scroll the table sideways.
| Warning | Urgency | In short |
|---|---|---|
| Green warning/indicator lights Stop & Start (ICE) | Information / status | Stop & Start has put engine in STOP |
| Vehicle ready to drive (PHEV or BEV) | Information / status | Vehicle is ready to drive |
| Seat occupied/Seat belt fastened | Information / status | A seat belt has been fastened |
| Direction indicators | Information / status | Direction indicators are on |
| Daytime running lights - Position lights | Information / status | Daytime running or position lights on |
| Dipped beam headlights | Information / status | Dipped beam headlights are on |
| Automatic headlight dipping | Information / status | Automatic headlight dipping is active |
| Blue warning/indicator lights Main beam headlights | Information / status | Main beam headlights are on |
| E-SAVE function (PHEV) | Information / status | E-SAVE function is activated |
| Usage | Information / status | Shows energy use and reserve |
This green Stop & Start symbol appears on the instrument panel. When it is steady, the Stop & Start system has put the engine into STOP mode because the vehicle has stopped. If it flashes for a short time, STOP mode is temporarily unavailable or START mode has been triggered automatically.
What to do:
If the light is steady:
If the light flashes briefly:
This green indicator is fitted to PHEV and BEV versions. It comes on steadily, with an audible signal, to show that the vehicle is ready to drive and the thermal comfort systems are available. It goes out once you reach a speed of approximately 5 km/h (3 mph) and comes back on when the vehicle stops moving.
What to do:
When the light comes on with the audible signal:
When the light goes out as you move off and returns when you stop:
This green seat belt symbol lights up steadily on the instrument panel. With the ignition on, it shows that the driver or a passenger has fastened their seat belt.
What to do:
This green arrow symbol flashes on the instrument panel together with an audible signal. It shows that the direction indicators are on.
What to do:
This green lighting symbol lights up steadily on the instrument panel. When there is enough ambient light, it shows that the daytime running lights are on. When the ambient light is too low, it shows that the position lights are on.
What to do:
This green headlight symbol lights up steadily on the instrument panel. It shows that the dipped beam headlights are on.
What to do:
This green symbol lights up steadily on the instrument panel. It shows that automatic headlight dipping has been activated via the touch screen and that the ring on the lighting control stalk is in the AUTO position.
What to do:
This blue headlight symbol lights up steadily on the instrument panel. It shows that the main beam headlights are on.
What to do:
This symbol is found on PHEV versions. It stays on steadily, together with the electric (BEV) range you have reserved, to show that the E-SAVE function is activated.
What to do:
This symbol relates to the Usage page, which shows how the vehicle's equipment uses energy and how much energy reserve you have, in miles or kilometres. The blue graph shows energy taken directly from the traction battery, and the green graph shows energy recovered when slowing down and braking to recharge it. Average electrical consumption for the current trip is shown in kWh/100 km, along with earlier values.
What to do:
If a green or blue lamp behaves in a way you don't expect, or a message appears alongside it, check the relevant section of your vehicle handbook for that system. If a red or orange lamp comes on at the same time, treat that warning first and, if needed, seek the assistance of a workshop.
Green and blue lamps are there to keep you informed, not to alarm you. Once you know what each one means, you can glance at your Peugeot 408 dashboard and see at a glance which systems are on and working.
Related guides: Peugeot 408 I (2026-present) red warning lights, Peugeot 408 I (2026-present) orange warning lights, Peugeot 408 Warning Lamps: Blue and Green Warnings (general guide) and all Peugeot 408 guides.
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