Lexus 2003 LS Owner's Manual page 626

Screen Adjustment
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Contrast and brightness adjustment
CONTRAST "+":
Strengthens the contrast of the screen.
CONTRAST "–":
Weakens the contrast of the screen.
BRIGHTNESS "+": Brightens the screen.
BRIGHTNESS "–": Darkens the screen.
The screen turns off when you push the
"SCREEN OFF". To turn the display screen
back on, push any bezel switch such as "OP-
TION", etc. The selected screen appears.
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Depending on the position of the head-
light switch, the screen changes to the
day mode or night mode.
To display the screen in the day mode even
with the headlight switch on, touch "DAY
MODE" on the adjustment screen for bright-
ness and contrast control.
However, if the instrument panel light control
switch is turned fully to the right, mode
switching cannot be done. It remains in the
day mode. In this case, "DAY MODE" is not
shown on the screen.
If the screen is set in the day mode with the
headlight switch turned to on, this condition
is memorized in the system even with the en-
gine turned off.
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