Ford Mustang Owner's Manual page 150

3. If you have an automatic transmission,
make sure that the gearshift is in P (Park)
and the parking brake is set before you turn
the key.
If you have a manual transmission, make
sure that the parking brake is fully set, push
the clutch pedal to the floor, and put the
gearshift into Neutral before you turn the
key. The starter will operate only if the
clutch pedal is pushed in all the way.
Before you start your vehicle, you should test
the warning lights on the instrument panel to
make sure that they work. Refer to the
Instrumentation chapter.
Starting Your Engine
To start your engine:
1. Follow the steps under Preparing to Start
Your Vehicle at the beginning of this section.
2. Turn the ignition key to the ON position.
3. DO NOT depress the accelerator pedal when
starting your engine. DO NOT use the
accelerator while the vehicle is parked.
4. Turn the key to the START position
(cranking) until the engine starts. Allow the
key to return to the ON position after the
engine has started.
If you have difficulty in turning the key,
rotate the steering wheel slightly because it
may be binding.
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