What Do Your Dashboard Warning Lights Mean?
- BMTech
- May 12
- 2 min read
Modern vehicles are more connected than ever—and they’re always talking to you. One of the clearest ways they communicate is through dashboard warning lights. These little icons can alert you to everything from a flat tyre to a failing engine. Understanding them is key to avoiding costly repairs and staying safe on the road.
Why Dashboard Warning Lights Matter
When you start your car, warning lights flicker to life briefly as part of a self-check. But if one stays on—or lights up while driving—it’s your car’s way of saying, “Something’s not quite right.”
Ignoring these signals can turn a minor fault into a major headache.
What the Colours Mean
Green or Blue – All systems go. These indicate active features like headlights or cruise control.
Yellow or Amber – Caution. You’ll need to investigate soon, but it’s not urgent.
Red – Stop safely and address immediately. These usually mean serious safety or mechanical issues.
Common Dashboard Warning Lights & What To Do
🔧 Check Engine Light
An engine-shaped icon. It could mean anything from a loose fuel cap to a serious fault. Action: Book a diagnostic check at BM Tech.
🔋 Battery Alert
A battery symbol means your car’s not charging properly. Action: Get your battery and alternator tested—Battery World can help.
🛑 Brake Warning
An exclamation mark or the word “BRAKE” indicates an issue with your braking system. Action: Ensure your handbrake is off. If the light stays on, contact BM Tech immediately.
⚠️ ABS Warning
“ABS” lights up when your anti-lock braking system is faulty. Action: Braking will still work, but the anti-lock feature is disabled. Drive cautiously.
🛢 Oil Pressure
An oil can symbol means low oil pressure. Action: Pull over, check oil levels. If normal, have the engine inspected urgently.
🌡 Engine Temperature
A thermometer icon means the engine is overheating. Action: Stop, turn off the engine, and let it cool. Check coolant once safe to do so.
⚠️ Tyre Pressure Monitoring (TPMS)
A horseshoe-shaped icon with an exclamation mark signals low tyre pressure. Action: Top up air at your nearest servo. Find your tyre pressure on the driver’s door placard.
🪂 Airbag Warning
A seated figure with a circle (airbag) indicates a fault. Action: Airbags may not deploy in a crash. Get it checked ASAP.
🌀 Traction Control
A car with squiggly lines means the traction control system is off or malfunctioning. Action: Drive with care, especially in wet or loose conditions.
⛽ Fuel Indicator
A classic fuel pump icon. Action: Refuel! Running dry can damage your fuel pump. Ampol and 7-Eleven Fuel are reliable options.
What To Do When a Light Comes On
Check the Colour – Red = stop. Amber = soon. Green = no action.
Use Your Manual – It’s the car’s cheat sheet.
Get a Professional Opinion – If unsure, book in with BM Tech.
Prevention is Key
Stick to your logbook servicing schedule
Check fluids, battery, and tyres regularly
Don’t ignore early warning signs
Book Your Vehicle In Today
At BM Tech, we specialise in BMW, Mini, Audi, and Volkswagen servicing and repairs across Melbourne. If your dashboard is lighting up like a Christmas tree, don’t ignore it!
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