top of page


  • Instagram
  • Facebook
  • LinkedIn
  • TikTok
(028) 3889 1242

Text a Part-Text Only

UK & NI: 07713001111
ROI: 0876003393


86 Armagh Rd Dungannon
BT71 7JA
 ☎  +4428 3889 1242


  • Instagram
  • Facebook
  • LinkedIn
  • TikTok
  • YouTube
  • sinead613

Understanding your car: Decoding Dashboard Warning Lights

As with every important relationship, communication is key. Listening to what your vehicle is telling you will go a long way to minimising any long-term damage.


In the intricate language of cars, dashboard warning lights act as the messenger, signalling potential issues that demand your attention.


Knowing how to interpret these lights can make all the difference between a minor hiccup and a major headache on the road.


The Traffic Light Code: Green, Yellow, and Red Lights


Imagine your dashboard as a traffic light system, providing quick visual cues about your vehicle's health:


Green Lights: Everything is in order, and systems are working as they should.


Yellow Lights: Caution! Something isn't quite right. It's a sign to take extra care and investigate the issue promptly.


Red Lights: Danger! A serious problem requires immediate attention. Stop driving as soon as it's safe to do so.


A Comprehensive Guide to Common Warning Lights:


1. ABS / Anti-Lock Braking System Warning Light:

   - Possible Causes: Malfunctioning ABS module, low brake fluid, broken wheel speed sensor, or the system turned off.


2. Airbag Warning Light:

   - Interpretation: Indicates a problem with the airbag system and requires professional inspection.


3. Battery Warning Light:

   - What it may indicate: Issues with the charging system, a faulty battery, or alternator problems.


4. Brake System Warning Light:

   - Caution Level: Requires immediate attention. Could be a simple brake fluid top-up or a more serious braking system issue.


5. Brake Pad Warning Light:

   - Alert: Warns about worn brake pads and demands a prompt replacement.


6. Bulb Warning Light:

   - Attention Needed: Indicates a faulty exterior light, like a brake light or indicator.


7. Coolant Levels Warning Light:

   - Caution Level: Signals low coolant levels, potentially due to a leak or other issues.


8. DEF (Diesel Exhaust Fluid) Warning Light:

   - Possible Issue: Low DEF levels and requires a refill.


9. DPF Warning Light:

   - Red Flag: Diesel Particulate Filter issues, requiring attention to prevent further damage.


10. Electronic Stability Problem (ESP) Warning Light:

    - Alert: Indicates a problem with the vehicle's stability control system.


11. Electronic Throttle Control Warning Light:

    - What It Means: Issues with the throttle control system, necessitating inspection.


12. Engine Management Light:

    - Caution Level: Signals a range of potential issues with the engine; professional diagnosis is crucial.


13. Engine Oil Warning Light:

    - Red Alert: Indicates low oil levels or pressure; immediate action required to prevent engine damage.


14. Engine Temperature Warning Light:

    - Warning: Signifies an overheating engine; stop driving and seek assistance.


15. Exhaust Particulate Filter Warning Light:

    - Attention Needed: Issues with the exhaust filter system, requiring inspection.


16. Glow Plug Warning Lights:

    - Alert: Indicates a problem with the diesel engine's glow plugs.


17. Overdrive Warning Light:

    - Interpretation: Issues with the transmission's overdrive system.


18. Power Steering Warning Light:

    - Caution Level: Indicates problems with the power steering system.


19. Reduced Power Warning Light:

    - Attention Needed: Signals a reduction in engine power, requiring inspection.


20. Transmission Failure Warning Light:

    - Red Alert: Indicates potential transmission issues, needing immediate attention.


21. Tyre Pressure Warning Light:

    - Caution Level: Signals low tyre pressure; check and adjust pressures accordingly.


Understanding these warning lights empowers you to take prompt action, ensuring your car stays in top-notch condition and you stay safe on the road. Don't ignore the signals, listen when your dashboard ‘speaks’, and respond accordingly!




bottom of page