TOYOTA 2012 Tacoma - Manual (Page 349)

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3-7. Other interior features
Outside temperature display (vehicles with auto anti-glare inside rear view mirror)
The temperature display shows temperatures within the ranges of
-40°F (-40°C) and 122°F (50°C).
■
Outside temperature display
Type A
Type B
■
Ice advisory indicator
If the outside temperature low-
ers to 37°F (3°C) or below
when the engine switch is in
the ON position, the indicator
will come on to warn the driver
that roads may be icy. Check
the road surface and drive
carefully. (The indicator will go
off when the outside tempera-
ture rises to 41°F [5°C].)