Page 553 of 636

Cell phone issues
Possible solution
Possible cause
Issue
Text messages from WhatsApp and Face-
book Messenger are not supported.
Your cell phone must support downloading
text messages through Bluetooth to receive
incoming text messages.
This is a cell phone-
dependent feature.
Audible text
messages do
not work on my
cell phone. Because each cell phone is different, refer
to your device's manual for the specific cell
phone you are pairing. In fact, there can be
differences between cell phones due to
brand, model, service provider and software
version.
This is a cell phone limita-
tion. USB and Bluetooth Stereo issues
Possible solution
Possible cause
Issue
Disconnect the device from SYNC 3. Try
switching your device off, resetting it or
removing the battery, then reconnect it to
SYNC 3.
Possible device malfunc-
tion.
I am having
trouble
connecting my
device. Make sure you are using the manufacturer's
cable.
Make sure to correctly insert the USB cable
into the device and your vehicle's USB port.
Make sure that the device does not have
an auto-install program or active security
settings.
Make sure your device is unlocked before
connecting it to SYNC 3.
The device has a lock
screen enabled.
Make sure you are not leaving the device in
your vehicle during very hot or cold
temperatures.
This is a device limitation.
SYNC 3 does
not recognize
my device when
I start my
vehicle.
Make sure you connect the device to SYNC
3 and that you have started the media
player on your device.
This is a device-
dependent feature.
Bluetooth audio
does not
stream.
550
Super Duty (TFE) Canada/United States of America, enUSA, First Printing SYNC™ 3 (If Equipped)
Page 576 of 636

Normal Maintenance Intervals
At every oil change interval as indicated by the information display
1
Change the engine oil and filter. 2
Fuel and water separator. Drain if necessary (or if indicated by the information display).
Refill the diesel exhaust fluid tank.
Rotate the tires 3
, inspect the tires for wear and measure tread depth.
Perform a multi-point inspection (recommended).
Inspect the air filter restriction gauge. Replace the filter if necessary.
Inspect the automatic transmission fluid level. Consult your dealer for requirements.
Inspect the brake pads, shoes, rotors, drums, brake linings, hoses and parking brake.
Inspect the engine and secondary cooling system coolant concentration (freeze-point
protection), level and hoses.
Inspect the exhaust system and heat shields.
Inspect the front axle and U-joints. Lubricate any grease fittings. (Four-wheel drive
vehicles)
Inspect the steering linkage, ball joints, suspension, tie-rod ends, driveshaft and U-joints.
Lubricate any grease fittings.
1 Do not exceed one year or 10000 miles (16000 kilometers) between service intervals.
2 Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.
3 Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted. Other maintenance items
1
Replace the cabin air filter.
Every 20000 miles (32000
km)
Replace the engine-mounted and frame-mounted fuel
filters.
Every 30000 miles (48000
km)
573
Super Duty (TFE) Canada/United States of America, enUSA, First Printing Scheduled Maintenance
Page 586 of 636

Off-road operation
Change the rear axle fluid (Dana rear axles only - some F-
350s; all F-450s and F-550s).
Every 50000 miles (80000
km)
Change the transfer case fluid. (Four-wheel drive vehicles)
Inspect the front axle fluid. (Four-wheel drive vehicles)
* Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted.
** Reset the Intelligent Oil-Life Monitor after engine oil and filter changes. Using biodiesel, up to and including 20% biodiesel (B20)
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15000 miles (24000
km), six months, 600 engine
hours Using fuel other than ultra-low sulfur diesel fuel - vehicles operated where ultra-low
sulfur diesel fuel is not required or available
Change engine oil and filter.
Every 2500 miles (4000
km) or three months (if
using high sulfur fuel with
more than 500 ppm sulfur)
Change engine oil and filter.
Every 5000 miles (8000
km) or six months (if using
high sulfur fuel with fewer
than 500 ppm sulfur)
Exceptions
Axle and Transfer Case Maintenance
Axle(s) and transfer case (4X4 only) fluid
changes or level checks are not required
unless a leak is suspected or the assembly
has been submerged in water. During long
periods of trailer towing with outside
temperatures above 70°F (21°C) or at wide-open throttle for long periods
above45 mph (72 km/h), change the rear
axle fluid every 30,000 mi (48,000 km) if
the rear axle is filled with non-synthetic
fluid. This interval can be waived and the
150,000 mi (240,000km) service interval
can continue if the rear axle is filled with
75W140 synthetic gear fluid meeting Ford
583
Super Duty (TFE) Canada/United States of America, enUSA, First Printing Scheduled Maintenance
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