Ford Mustang Owner's Manual page 176

If you use the speed control while you are
towing on very long, steep grades, the speed
control may shut off.
Servicing Your Vehicle If You Tow
If you tow a trailer for a long distance, your
vehicle will need to be serviced more frequently
than usual. Refer to the Maintenance Schedule
booklet for additional information.
Driving Under Special Conditions
Tips for Safe Driving
As with any new vehicle, yours may drive and
handle differently from your previous vehicle.
Use care until you become accustomed to its
various features and driving characteristics.
Operate your vehicle within reasonable limits.
Sudden acceleration, deceleration, turning, or
combinations of these maneuvers can cause a
vehicle to behave differently than anticipated.
Driving in Bad Weather
Slippery roads
Drive cautiously on wet or snowy roads:
Do not quickly move the steering wheel
unless necessary.
Drive slower than you normally would.
Do not use speed control.
Give your vehicle more distance to stop.
Pump the brake pedal steadily and evenly to
avoid locking your wheels. (Does not apply
to vehicles with anti-lock brakes.)
Consider using one of the lower gears.
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