ah yes, my bad. I had made the assumption that you had the check engine light on, as you complained about an engine performance issue.In North America, the Engine Maintenance tell-tale blinks at 6K miles, and comes on steady at 10K miles. It is only a mileage indicator, it doesn't 'sense' driving conditions as the newer Maintenance Minder does.
The CEL (Check Engine Light) is something different. That comes on if your OBDII emissions system notices a problem. If that is the indicator you are reporting, you need to find out the fault code with a code reader.
In the USA, many auto parts stores will read it for you, for free. (But the other day, I noticed a sign in our autoparts window "We will not be reading OBDII Codes as a result of the CoronaVirus situation.")