Green or blue — information only
Eco mode
The car is in economy mode: softer throttle, earlier shifts, weaker climate control. Sometimes the symbol simply praises smooth driving.
These lamps are not about a fault: they say a system is switched on, or remind you of something simple to do.
What to do now
- Nothing to do. If you need power to overtake, the button turns it off.
- ⚠️ If consumption rose while the lamp is on, look elsewhere: an air leak, an oxygen sensor, a clogged filter.
- The saving from the mode itself is small — percent, not multiples; driving style gives far more.
- The mode does not affect faults at all: it changes pedal response and shift points, not how the sensors work. If the check light came on, the mode is not the reason.
- Judge your consumption from live data rather than from the symbol: instant consumption, fuel trims and coolant temperature say far more.
What to read next
A lamp is not a diagnosis. The same symbol lights up for a dozen different reasons, and only the code stored in the car tells them apart.
How the app helps
CarScan reads the codes behind the lamp through an OBD-II adapter, explains them in plain words and puts them into a report you can show to a mechanic.