Cadillac 1967 VVI Data Book page 171

Instruments
The instructions on use of the ignition switch and the various
instruments and accessories, as explained in Sections 1 and 2,
also apply to the Fleetwood Seventy-Five sedan and limousine.
Courtesy lights
Fleetwood Seventy-Five cars are equipped with courtesy lights
that illuminate the interior of the car when any door is opened.
When the front doors or all doors are closed, full counter-
clockwise position of the headlight control knob turns on the
front courtesy lights.
When either rear door is opened, the front courtesy lights,
front door warning lights, rear door courtesy lights and the
reading lights in the air conditioning ceiling outlets operate.
When either front door is opened on the sedan style, the front
courtesy lights, front door warning lights and rear door
courtesy lights operate. Only the front courtesy lights and front
door warning lights operate when either front door is opened
on the limousine style.
Manual switches for the reading lights are located on the
rear quarter trim panels above the armrests.
On Limousine styles, a front compartment map light,
located in the headlining between the sun visors, may be
operated manually with the switch integral with the light.
Power windows
42