Understanding dashboard warning lights in your Peugeot 408 is essential for maintaining vehicle safety and preventing costly repairs. These lights alert you to potential issues ranging from minor maintenance needs to critical faults that could lead to breakdowns or accidents.
By recognizing and responding promptly, you can ensure smooth operation, avoid roadside emergencies, and extend your car’s lifespan.
Quick Navigation
Red Warning Lights (Stop Immediately)
Engine Oil Pressure
Low oil pressure can cause engine damage from poor lubrication. Stop the car right away, check oil level, and add if needed; do not drive until fixed.
Brake System Alert
Indicates low brake fluid or a failure in the braking system. Pull over safely and call for roadside assistance or a mechanic immediately.
Coolant Temperature
Engine is overheating, possibly due to low coolant or a leak. Stop driving, let the engine cool, and check coolant level; seek professional help.
Stop Warning
A serious fault in oil pressure, coolant, brakes, power steering, or electrical system. Stop as soon as safe, turn off engine, and contact a service center.
Battery Charge
Battery is not charging properly, often due to a faulty alternator. Stop and check connections; if it persists, get it inspected to avoid stranding.
Power Steering Failure
Loss of power steering assistance, making steering hard. Pull over immediately and have the system checked to prevent control issues.
Airbag System
Airbag may not deploy in a crash due to a fault. Stop and visit a service center for diagnosis and repair.
Seatbelt Reminder
A seatbelt is unfastened while driving. Stop and ensure all belts are secured before continuing.
ABS Failure
Anti-lock braking system is not working, increasing skid risk. Stop safely and have brakes inspected urgently.
Door Ajar
A door is not fully closed, posing a safety risk. Pull over, check and secure all doors.
Transmission Overheat
Transmission fluid is too hot, risking damage. Stop, let it cool, and check fluid level; seek repair if needed.
Low Brake Fluid
Brake fluid level is critically low. Stop immediately, top up fluid, and inspect for leaks.
Engine Management Fault
Major engine issue detected, like sensor failure. Stop and call for towing to avoid further damage.
Parking Brake Malfunction
Parking brake is not releasing or has a fault. Stop and resolve before driving.
Tyre Pressure Critical
Tyre pressure is dangerously low, risking blowout. Stop, inflate tyres, and check for damage.
Yellow/Amber Warning Lights (Action Required Soon)
Service Warning
Minor fault like low oil or screen wash; or serious issue without dedicated light. Check message, address soon at a service center.
Diesel Preheat (Glow Plug)
Glow plugs need replacement if light stays on. Schedule service to avoid starting issues in cold weather.
Tyre Pressure Monitoring
Tyre pressure is low but not critical. Inflate tyres soon and reset system.
ESP Stability Control
Electronic stability program is faulty. Drive carefully and have it serviced promptly.
DPF Filter
Diesel particulate filter is clogged. Drive at higher speeds for 10 minutes to clear, or visit service if persistent.
Brake Pads Worn
Brake pads are thinning. Replace soon to avoid reduced stopping power.
Coolant Level Low
Coolant is below safe level. Top up soon to prevent overheating.
Transmission Fault
Minor transmission issue detected. Have it diagnosed to avoid escalation.
Power Steering Assist Reduced
Power steering has limited function. Schedule service for full repair.
Eco Mode Inactive
Eco driving mode is unavailable due to a fault. Reset or service to restore fuel efficiency features.
Green Warning Lights (Information Only)
Stop & Start Active
Engine is in stop mode at a halt for fuel savings. No action needed; it restarts automatically.
Vehicle Ready to Drive (Hybrid)
Hybrid system is ready; vehicle can move. Light turns off above 3 mph.
Headlights On
Main or dipped headlights are in use. No action required.
Fog Lamps Active
Front or rear fog lights are switched on for visibility. Turn off when not needed.
Side Lamps
Sidelights are illuminated. Standard info during low-light driving.
Cruise Control
Cruise control system is engaged. Adjust as needed via controls.
Lane Departure Assist
System is monitoring lanes and active. No intervention unless alerted.
Automatic Wipers
Rain-sensing wipers are on and functioning. Adjust sensitivity if desired.
Fuel Economy Indicator
Displays current fuel efficiency. Use to monitor driving habits.
Gear Shift Indicator
Suggests optimal gear for efficiency. Follow for better fuel use.
Parking Sensors Active
Sensors are detecting obstacles during parking. Heed beeps for guidance.
High Beam On
Main beam headlights are active. Dip for oncoming traffic.
When looking at Peugeot, make sure to check out our guides on models like the Peugeot RCZ, Peugeot Expert Tepee, Peugeot 5008, and Peugeot 508. Understanding dashboard warning lights is essential. Our expert reviews break down what each light means, highlighting common alerts for these models and what they could signal about underlying issues, so you’re never left guessing behind the wheel.
