What it means
This warning indicates that the automatic engine stop-start system is disabled, unavailable, or has detected a fault. Amber commonly signals a non-urgent system issue, but the colour and exact behaviour vary by manufacturer; check the owner’s manual.
What the symbol looks like: A capital “A” enclosed by a circular arrow, often with a slash, warning mark, or “OFF” indication.
Why it comes on
- The battery charge or condition does not meet the system’s requirements.
- The engine or cabin climate control needs the engine to keep running.
- The system is limited by temperature or other operating conditions.
- A stop-start system, battery, or related component fault.
What to do
- Check the dashboard message for the reason the system is unavailable.
- Continue using the vehicle normally if there are no other warnings or symptoms.
- If the warning persists, consult the owner’s manual and arrange an inspection.
- Do not disconnect or replace the battery without following the vehicle’s specified procedure.
Can I keep driving?
You can generally continue driving if the engine runs normally and no other warning lights appear. The engine may not stop automatically at standstill; respond to any additional warnings separately.
Symbols and colours differ between makes and models. Your owner’s manual shows the exact lights of your car.