
This is the red coolant temperature warning lamp. It stays on while the coolant temperature needle is in the red zone, and it means the cooling system is running too hot.
What to do:
- Stop as soon as it is safe to do so.
- Wait until the engine has cooled down, then top up the coolant if needed.
- If the problem continues, contact a PEUGEOT dealer or a qualified workshop.
Seat belt not fastened / unfastened

This is the red seat belt warning lamp. It comes on steadily and then flashes in the display for the passenger seat belt and front airbag warning lamps. It means someone in the car has not fastened their seat belt, or has unfastened it.
What to do:
If the driver or front passenger has not fastened, or has unfastened, their seat belt:
- Pull out the belt in question and push the tongue into the buckle.
If at least one rear passenger has unfastened their seat belt:
- Make sure the rear passenger fastens their belt again.
- For more details, see the "Seat belts" section of your handbook.
Parking brake

This is the red parking brake warning lamp. It stays on when the parking brake is applied or has not been fully released.
What to do:
- Keep your foot on the brake pedal and release the parking brake to switch the lamp off.
- Follow the safety recommendations for the parking brake.
- For more details, see the "Parking brake" section of your handbook.
If You're Not Sure
If a red lamp comes on and you are not sure what it means, stay calm, stop somewhere safe and read the message shown on the screen, as it is there to help you identify the fault. If you are still unsure, contact a PEUGEOT dealer or a qualified workshop.
Some warning lamps light up for a few seconds when you switch on the ignition and should go off once the engine starts. If one stays on, check what it means before you move off, so you know your Peugeot 308 CC is ready for the road.
Related guides: Peugeot 308 I CC (2008-present) orange warning lights, Peugeot 308 I CC (2008-present) green and blue lights, Peugeot 308 Indicators: Red Warnings (general guide) and all Peugeot 308 guides.