2021 FORD F-59 trailer

Engine Coolant Temperature
Management (If Equipped)
WARNING:
To reduce the risk of
crash and injury, be prepared that the
vehicle speed may reduce and the
vehicle may not be able to accelerate
with full power until the coolant
temperature reduces.
If you tow a trailer with your vehicle, the
engine could temporarily reach a higher
temperature during severe operating
conditions, for example ascending a long
or steep slope in high ambient
temperatures.
At this time, you may notice the coolant
temperature gauge moves toward the red
zone and a message could appear in the
information display.
You may notice a reduction in vehicle
speed caused by reduced engine power in
order to manage the engine coolant
temperature. Your vehicle may enter this
mode if certain high-temperature and
high-load conditions take place. The
amount of speed reduction depends on
vehicle loading, slope and ambient
temperature. If this occurs, there is no need
to pull off the road, you can continue to
drive your vehicle.
The air conditioning could turn on and off
during severe operating conditions to
protect the engine from overheating. When
the coolant temperature decreases to the
normal operating temperature, the air
conditioning turns on.
If the coolant temperature gauge moves
fully into the red zone, or if the coolant
temperature warning or service engine
soon messages appear in your information
display, do the following: 1. Pull off the road as soon as safely
possible and shift the transmission into
park (P).
2. Leave the engine running until the coolant temperature gauge needle
returns to the normal position. If the
temperature does not drop after
several minutes, follow the remaining
steps.
3. Switch the engine off and wait for it to
cool. Check the coolant level.
4. If the coolant level is at or below the minimum mark, add prediluted coolant
immediately.
5. If the coolant level is normal, restart the engine and continue.
AUTOMATIC TRANSMISSION
FLUID CHECK WARNING:
The dipstick and
surrounding components are hot. Use
gloves when moving components and
checking the transmission fluid level.
Failure to follow this warning could result
in serious personal injury.
Note: Automatic transmission fluid
expands when warmed. To obtain an
accurate fluid check, drive the vehicle until
it is at normal operating temperature
(approximately
20 mi (30 km)). If your
vehicle has been operated for an extended
period at high speeds, in city traffic during
hot weather or pulling a trailer, the vehicle
should be turned off for about 30 minutes
to allow fluid to cool to normal operating
temperature 196°F - 215°F (91°C - 102°C)
before checking.
Refer to your scheduled maintenance
information for scheduled intervals for fluid
checks and changes.
122
2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Maintenance

SPECIAL OPERATING
CONDITIONS SCHEDULED
MAINTENANCE
If you operate your vehicle primarily in any
of the following conditions, you need to perform extra maintenance as indicated.
If you operate your vehicle
occasionally
under any of these conditions, it is not
necessary to perform the extra
maintenance. For specific
recommendations, see your dealership
service advisor or technician. Towing a trailer or using a car-top carrier
Inspect U-joints.
Inspect frequently, service
as required
See axle maintenance items under
Exceptions.
Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.
Every 5000 miles (8000
km)
Rotate tires*
, inspect tires for wear and measure tread
depth.
Change engine oil and filter.
Every 5000 miles (8000
km) or six months
Inspect U-joints.
Replace front wheel bearing grease and grease seals if
non-sealed bearings are used.
Every 30000 miles (48000
km)
Replace spark plugs.
Every 60000 miles (96000
km)
* Vehicles equipped with dual rear wheels should rotate the front wheels when specified;
rear wheels only if unusual wear is noted. Extensive idling or low-speed driving for long distances, as in heavy commercial use
(such as delivery, taxi, patrol car or livery)
Inspect brake system.
Every 5000 miles (8000
km)
Inspect wheels and related components for abnormal
noise, wear, looseness or drag.
Rotate tires*
, inspect tires for wear and measure tread
depth.
Inspect U-joints.
Every 5000 miles (8000
km) or six months
173
2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Scheduled Maintenance

Rear axle fluid change or level check not
required unless 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)
and at wide-open throttle for long periods
above 45 mph (72 km/h), change rear axle
fluid every 24,000 mi (38,000 km) or three
months, whichever comes first.
California fuel filter replacement: If you
register your vehicle in California, the
California Air Resources Board has
determined that the failure to perform this
maintenance item does not nullify the
emission warranty or limit recall liability
before the completion of your vehicle's
useful life. Ford Motor Company, however,
urges you to have all recommended
maintenance services performed at the
specified intervals and to record all vehicle
service.
Hot climate oil change intervals:
Vehicles operating in the Middle East,
North Africa, Sub-Saharan Africa or
locations with similar climates using an
American Petroleum Institute (API)
Certified for Gasoline Engines (Certification
mark) oil of SM or SN quality, the normal
oil change interval is 5000 miles (8000
kilometers).
If the available API SM or SN oils are not
available, then the oil change interval is
3000 miles (4800 kilometers).
Engine air filter and cabin air filter
replacement
: The life of the engine air
filter and cabin air filter is dependent on
exposure to dusty and dirty conditions.
Vehicles operated in these conditions
require frequent inspection and
replacement of the engine air filter and
cabin air filter.
175
2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Scheduled Maintenance

P
Parking Brake...................................................55
Perchlorate.........................................................11
Power Steering Fluid Check......................126
Pre-Collision Assist........................................74
Protecting the Environment........................15
R
Radio Frequency Certification Labels.............................................................176
Cruise Control Module...................................... 176
Recommended Towing Weights..............84
Reduced Engine Performance..................90
Refueling...........................................................43
Replacement Parts Recommendation........................................12
Reporting Safety Defects (Canada Only)...............................................................103
Reporting Safety Defects (U.S. Only)...............................................................102
Resuming the Set Speed.............................61
Roadside Assistance....................................93
Roadside Emergencies
................................93
Running-In See: Breaking-In.................................................... 91
Running Out of Fuel......................................42
S
Safety Precautions
.........................................41
Scheduled Maintenance...........................168
Setting the Cruise Control Speed............60
Snow Chains See: Using Snow Chains.................................. 150
Special Notices................................................12
Special Operating Conditions Scheduled Maintenance................................................173
Speed Control See: Cruise Control............................................. 60
Stability Control.............................................58 Principle of Operation........................................ 58
Starter Switch See: Ignition Switch............................................. 37
Starting a Gasoline Engine..........................37
Starting and Stopping the Engine............37 General Information............................................ 37Steering..............................................................73
Steering Wheel
................................................16
Switching Automatic High Beam Control On and Off
.....................................................22
Switching Cruise Control On and Off....................................................................60
Symbols Glossary.............................................5
T
Technical Specifications See: Capacities and Specifications.............152
The Better Business Bureau (BBB) Auto Line Program (U.S. Only).......................100
Tire Care
...........................................................134
Tires See: Wheels and Tires...................................... 134
Towing a Trailer...............................................83
Towing the Vehicle on Four Wheels.......89
Towing................................................................83
Traction Control
..............................................57
Principle of Operation......................................... 57
Transmission Code Designation
.............155
Transmission...................................................50
Transporting the Vehicle.............................96
U
Under Hood Overview - Commercial Chassis............................................................114
Under Hood Overview - Motorhome Chassis............................................................115
Using Adaptive Cruise Control...................61
Using Snow Chains......................................150
Using Traction Control..................................57
V
Vehicle Care
....................................................130
General Information.......................................... 130
Vehicle Identification Number
.................154
Vehicle Storage..............................................132
VIN See: Vehicle Identification Number.............154
W
Warning Lamps and Indicators
.................27
187
2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Index