What it means
A flashing light usually means the electronic stability control is actively helping the vehicle maintain grip; a steady light usually indicates the system is switched off or has a fault. Amber is commonly used, but colour and exact behaviour vary by manufacturer; check the owner's manual.
What the symbol looks like: A car with curved skid marks beneath it, sometimes accompanied by the letters ESC or ESP.
Why it comes on
- The system is intervening because a wheel is slipping
- The stability control has been switched off
- A wheel-speed sensor or its wiring is faulty
- A steering-angle or yaw sensor has a fault
What to do
- If the light flashes, ease off the accelerator and steer smoothly.
- If it stays on, check whether stability control was switched off.
- Check the owner's manual for the light and any accompanying messages.
- If it remains on, arrange inspection and drive cautiously.
Can I keep driving?
A flashing light during a brief loss of grip is usually a sign the system is working; reduce speed and avoid abrupt steering or acceleration. With a steady fault light, cautious driving may be possible, but stability assistance may be unavailable, so avoid slippery roads and have it checked.
Symbols and colours differ between makes and models. Your owner’s manual shows the exact lights of your car.