Oil Pressure Warning Light; Fuel Monitor Warning Light; Door Ajar Warning Light - Ford 1975 Mustang II Owner's Manual

INSTRUMENTS AND CONTROLS
OIL PRESSURE WARNING LIGHT-The oil pressure warning light (OIL)
will glow red when the ignition key is in the ON position with engine not
running to prove that the light and electrical wiring are satisfactory. The
light should go out when the engine is started and running.
Ught may flicker with engine at idle speed or during sudden stops - this
is normal. With steady red glow from li~t above idle speed, stop the en-
gine as soon as safely possible and check the oil level. Add oil if needed.
Do not drive when light stays on. ,
FUEL MONITOR WARNING LIGHT..,..The optional fuel monitor warning
light indicates how efficiently the engine is using gasoline by monitoring
the vacuum in the intake manifold. The light will glow amber when the
vacuum islow; i.e ., when the engine is not operating at top fuel economy.
To improve fuel economy, it is necessary to adjust driving habits to keep
the light from glowing. For economy driving tips ,
seep~ge
44.
DOOR AJAR WARNING LIGHT-The optional door ajar warning light
will light up with the words DOOR AJAR, while the engine is running, if
one of the doors is not fully closed.
The following warning lights should glow when the ignition switch is in the
START position. If any of them do not light up in the START position, it
indicates a malfunction in your car's electrical circuits. Have the electrical
system checked out as soon as possible.
IGNITION
SWITCH
FUEL ALT
TEMP
13