Yes.
This is a common problem, and this problem will occur as long as the antifreeze is replaced. That's because the Fit car doesn't have an antifreeze bleed screw, and the water tank cover is lower than the hot water tank, so the air in the hot water tank will be trapped inside and cannot be released.
Tell you the simplest way. Park the car on a slope of 15---30 degrees, put the front of the car upward, idle the car and wait for the fan to rotate 3-5 times. Basically, the heater will be turned off. The air in the water tank is discharged.