I have refill my city with 15 litres petrol yesterday but it could not get the fuel guage to come up it is still going down to reserve light. I have driven 3000 kms on my new city and this problem arise what should I do?
You should visit any authorised Honda Dealership, preferably the one from where you bought your vehicle, and have the issue sorted out.
IMO, there seems something wrong with the fuel indication gauge.
Dealership and claim warranty
Battery se wire hatta dain for 15 min. Then reinstate it on position . Again refill n go to drive . Problem will be solved. Or not then go to mechanic.