Cadillac 1967 VVI Data Book page 148

heater on and off, and directs defrosting air to the windshield.
Moving the upper lever to "HEAT" turns the heater on. If air
is desired on the windshield, move the lever to the "DE-
FROST" position, and move the lower lever to the desired
temperature position. For removing ice, move both levers to
the extreme right position, and set the fan switch on "HIGH".
Heater control during warm-up
For maximum heat and quickest warm-up in cold weather,
place the upper lever at "HEAT", move the lower lever all
the way to the right, and set the fan switch on "HIGH". If it
is necessary to remove some fog from inside the windshield
during this period, move upper lever to the "DEFROST"
position to direct air to the windshield. Any snow covering
the cowl air intake grille should be removed to facilitate
defogging.
MIRRORS
Inside day-night rear view mirror
The rear view mirrors used on all 1967 Cadillac cars have
shatter resistant vinyl edged glass and a breakaway support.
The inside day-night rear view mirror may be positioned from
clear daylight visibility to non-glare visibility at night by
rotating the lever on the bottom of the mirror. For daylight
driving, move the lever to the left; for night driving, to the
right. The mirror can be adjusted to accomodate the driver's
height and seat position by moving it on the ball stud or
pivot arm in back of the mirror.
Fleetwood inside
rear view minor