Nikon D5500 Reference Manual page 154

Normal exposure can be restored by setting exposure
compensation to ±0. Except in h and % modes, exposure
compensation is not reset when the camera is turned off (in
h and % modes, exposure compensation will be reset when
another mode is selected or the camera is turned off ).
A
The Information Display
Exposure compensation options can also be
accessed from the information display
(0 10).
A
Mode M
In mode M, exposure compensation affects only the exposure
indicator.
A
Using a Flash
When a flash is used, exposure compensation affects both background
exposure and flash level.
A
Bracketing
For information on automatically varying exposure over a series of
shots, see page 148.
130 P, S, A, and M Modes