Mitsubishi i-MiEV 2011 Owner's Manual page 215

Features and controls
Dash lights brightness indicator
Each time you press the dash lights illumination button (B), the
brightness of the instruments changes.
Bright
3
A- Brightness display
B- Dash lights illumination button
3-66
NOTE
You can adjust to 4 different levels for when the parking
N00572600019
lights or headlights are illuminated and 4 for when they
are not.
If you press and hold the button for longer than about 1
second, the brightness automatically scrolls through its
Dim
different levels, and stops scrolling when you release the
button. Select your desired level of brightness.
When the combination headlights and dimmer switch is in
the "AUTO" position, the meter illumination switches
automatically to the adjusted brightness, depending on the
brightness outside the vehicle.
The brightness level of the instruments is stored when the
electric motor switch is turned off.
If the 12V starter battery is disconnected for a long time,
these level of brightness will be reset.