Ford 2009 Taurus Owner's Manual page 236

Driving
WARNING: Always set the parking brake fully and make sure
that the gearshift is securely latched in P (Park).
The parking brake is not recommended to stop a moving vehicle.
However, if the normal brakes fail, the parking brake can be used to stop
your vehicle in an emergency. Since the parking brake applies only the
rear brakes, the vehicle's stopping distance will increase greatly and the
handling of your vehicle will be adversely affected.
Push the parking brake pedal
downward again to release the
parking brake. Driving with the
parking brake on will cause the
brakes to wear out quickly and
reduce fuel economy.
Note: If the vehicle is driven with
the parking brake applied, a chime
will sound.
ADVANCETRAC STABILITY ENHANCEMENT SYSTEM
WARNING: Vehicle modifications involving braking system,
aftermarket roof racks, suspension, steering system, tire
construction and/or wheel/tire size may change the handling
characteristics of the vehicle and may adversely affect the performance
of the AdvanceTrac system. In addition, installing any stereo
loudspeakers may interfere with and adversely affect the AdvanceTrac
system. Install any aftermarket stereo loudspeaker as far as possible
from the front center console, the tunnel, and the front seats in order
to minimize the risk of interfering with the Advance Trac sensors.
Reducing the effectiveness of the AdvanceTrac system could lead to
an increased risk of loss of vehicle control, vehicle rollover, personal
injury and death.
236
2009 Taurus (500)
Owners Guide, 1st Printing
USA (fus)