FORD 2003 Mustang v.3 - Manual (Page 127)

To prevent the vehicle from moving when
you change a tire, be sure the parking brake
is set, then block (in both directions) the wheel
that is diagonally opposite (other side and end of
the vehicle) to the tire being changed.
If the vehicle slips off the jack, you or
someone else could be seriously injured.
Do not attempt to change a tire on the side
of the vehicle close to moving traffic. Pull
far enough off the road to avoid the danger of
being hit when operating the jack or changing the
wheel.
Before changing the tire:
1. Park on a level surface.
2. Activate the hazard flashers.
3. Place the gearshift lever in P (Park) (automatic
transmission) or R (Reverse) (manual transmission).
4. Set the parking brake.
5. Turn off the ignition.
To change the tire:
Note: Passengers should not remain in the vehicle
when the vehicle is being jacked.
1. Block both the front
and rear of the wheel
diagonally opposite the
flat tire. For example,
if the right front tire is
flat, block the left rear
wheel.
Roadside Emergencies
127