Just want to share this here and I don't know if anyone has faced this problem before but the SC that I went told me that I'm the first one with this problem.
So my fuel meter was only 1 bar and it was blinking. I went to Petron, turned off the engine and refueled RM70-00 petrol. Then when I start the car, I noticed that the fuel meter did not go up but I thought it might need some time to adjust the meter.
Somehow after I drove my car for around 10km, the fuel meter was still at 1 bar and eventually it went up to 2-bar. I got confused because the fuel meter was supposed to be full.
I decided to visit the nearest SC and the Service Advisor said he never encountered such problem and he said they will check it first.
After 2 hours something, he called me back and informed me that they just opened up the float (pelampung minyak) and somehow it solved the problem and the fuel meter showed the correct reading.
The SA asked me to drive the car for a while and if the same problem occurred again, he asked me to visit the SC again.
Oh BTW, my car's mileage is around 5k.
Looks like the fuel float issue. Either the float arm is jammed, or a faulty potentiometer in the fuel sender unit. Get it changed and should be able to solve the problem.