FORD 2009 F-150 v.1 - Manual (Page 269)

of energy per hour. Your factory installed block heater system does not
have a thermostat; however, maximum temperature is attained after
approximately three hours of operation. Block heater operation longer
than 3 hours will not improve system performance and will unnecessarily
use additional electricity.
Make sure system is unplugged and properly stowed before driving the
vehicle. While not in use, make sure the protective cover seals the
prongs of the engine block heater cord plug.
BRAKES
Occasional brake noise is normal. If
a metal-to-metal, continuous
grinding or continuous squeal sound
is present, the brake linings may be
worn-out and should be inspected
by an authorized dealer. If the vehicle has continuous vibration or
shudder in the steering wheel while braking, the vehicle should be
inspected by an authorized dealer.
Refer to Brake system warning light in the Instrument Cluster
chapter for information on the brake system warning light.
Four-wheel anti-lock brake system (ABS)
Your vehicle is equipped with an Anti-lock Braking System (ABS). This
system helps you maintain steering control during emergency stops by
keeping the brakes from locking. Noise from the ABS pump motor and
brake pedal pulsation may be observed during ABS braking and the
brake pedal may suddenly travel a little farther as soon as ABS braking is
done and normal brake operation resumes. These are normal
characteristics of the ABS and should be no reason for concern.
Using ABS
When hard braking is required, apply continuous force on the brake
pedal; do not pump the brake pedal since this will reduce the
effectiveness of the ABS and will increase your vehicle’s stopping
distance. The ABS will be activated immediately, allowing you to retain
steering control during hard braking and on slippery surfaces. However,
the ABS does not decrease stopping distance.
P !
BRAKE
2009 F-150 (f12)
Owners Guide, 1st Printing
USA (fus)
Driving
269