2018 FORD F-250 auxiliary battery location

12 Volt DC Power Point
WARNING
Do not plug optional electrical
accessories into the cigar lighter
socket. Incorrect use of the cigar
lighter can cause damage not covered by
the vehicle warranty, and can result in fire
or serious injury. Note:
When you switch the ignition on, you
can use the socket to power 12 volt
appliances with a maximum current rating
of 20 amps.
Note: Do not plug in any device that
supplies power to the vehicle through the
power points, this may result in damage to
vehicle systems.
Note: Do not hang any accessory from the
accessory plug.
Note: Do not use the power point over the
vehicle capacity of 12 volt DC 240 watts or
a fuse may blow.
Note: Always keep the power point caps
closed when not in use.
Do not insert objects other than an
accessory plug into the power point. This
damages the power point and may blow
the fuse.
Run the vehicle for full capacity use of the
power point.
To prevent the battery from running out of
charge:
• Do not use the power point longer than
necessary when the engine is off.
• Do not leave devices plugged in
overnight or when you park your vehicle
for extended periods. Locations
Note:
Timed power points remain on for 30
minutes if the vehicle is in accessory mode.
If you switch the vehicle off, the timed
power points remain on for 75 minutes.
Power points may be in the following
locations:
• On the instrument panel.
• Inside the center console.
• On the rear of the center console.
• In the seat bin.
110 Volt - 400 Watt Capacity AC
Power Outlet WARNING
Do not keep electrical devices
plugged in the power point whenever
the device is not in use. Do not use
any extension cord with the 110 volt AC
power point, since it will defeat the safety
protection design. Doing so may cause the
power point to overload due to powering
multiple devices that can reach beyond
the 400 watt load limit and could result in
fire or serious injury. Note:
This feature works only when the
engine is running.
Note: This feature has a maximum output
of 400 watts when the vehicle is in park (P).
Note: While in drive (D), the maximum
outlet output is 300 watts.
Note: When powering electric devices that
require more than 10 watts in vehicles
equipped with keyless start, the engine must
remain running. If the engine is turned off or
you switch the ignition to accessory mode,
plugged in devices will not be charged.
You can use the power point for electric
devices that require up to 400 watts. It is
on the instrument panel and rear of the
center console.
170
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201709, Second Printing Auxiliary Power Points

•
An authorized dealer needs to install
mobile communications systems.
Improper installation may harm the
operation of your vehicle, particularly
if the manufacturer did not design the
mobile communication system
specifically for automotive use.
• If you or an authorized Ford dealer add
any non-Ford electrical or electronic
accessories or components to your
vehicle, you may adversely affect
battery performance and durability. In
addition, you may also adversely affect
the performance of other electrical
systems in the vehicle. The auxiliary switch option package
provides six switches mounted in the
overhead console. These switches operate
when the vehicle is running or from battery
power, depending on the switchable fuse
AUXF4's location in the upfitter relay box.
We recommend, however, that the engine
remain running to maintain battery charge
when using the auxiliary switches for
extended periods of time or higher current
draws.
Note:
When your vehicle has a diesel
engine, use the auxiliary switches only when
the engine is running. The glow plugs also
drain battery power when the ignition key is
in the on position. Using the auxiliary
switches, even for limited amounts of time,
can cause your battery to drain quickly and
prevent your vehicle from restarting. When switched on, the auxiliary switches
provide electrical battery power for a
variety of personal or commercial uses.
Switches 1 through 4 provide 25 amps.
Switches 5 and 6 provide 40 amps.
The relay box for the auxiliary switches is
in the rear of the engine compartment,
near the back wall. See your authorized
dealer for service.
The relays are coded as shown:
576
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201709, Second Printing AccessoriesE220728 E220729

Understanding the Shift Positions of Your
Automatic Transmission........................... 208
Understanding your SelectShift Automatic ™ transmission......................... 210
Automatic Transmission Fluid Check............................................................346
Checking Automatic Transmission Fluid................................................................... 346
Autowipers........................................................87
Auxiliary Power Points................................170 110 Volt - 400 Watt Capacity AC Power
Outlet................................................................. 170
12 Volt DC Power Point..................................... 170
Locations............................................................... 170
Auxiliary Switches........................................575 Upfitter Interface Module............................... 578
B
Battery See: Changing the 12V Battery..................... 353
Bed Extender....................................................74
Grocery mode........................................................ 75
Tailgate mode........................................................ 74
Bed Ramps
....................................................268
Installing the Ramp Holder............................ 270
Stowing the Bed Ramp................................... 270
Using the Bed Ramp........................................ 269
Blind Spot Information System
..............252
Blind Spot Information System with Trailer
Tow..................................................................... 254
Switching the System Off and On..............256
System Errors...................................................... 256
Using the System............................................... 253
BLIS See: Blind Spot Information System..........252
Bonnet Lock See: Opening and Closing the Hood..........328
Booster Seats
..................................................32
Types of Booster Seats...................................... 32
Brake Fluid Check........................................349
Brakes...............................................................225 General Information.......................................... 225
Breaking-In
....................................................298
Bulb Specification Chart..........................360 C
Cabin Air Filter................................................152
California Proposition 65
.............................12
Capacities and Specifications - 6.2L.................................................................427
Alternative Engine Oil for Extremely Cold Climates............................................................ 431
Specifications..................................................... 428
Capacities and Specifications - 6.7L Diesel.............................................................432
Engine Oil Specifications............................... 438
Specifications..................................................... 434
Capacities and Specifications - 6.8L................................................................439
Alternative Engine Oil for Extremely Cold Climates........................................................... 443
Specifications..................................................... 440
Capacities and Specifications...............420
Cargo Lamps....................................................97
Car Wash See: Cleaning the Exterior.............................. 370
Catalytic Converter
......................................196
On-Board Diagnostics (OBD-II).................... 197
Readiness for Inspection and Maintenance (I/M) Testing.................................................... 197
Center Console
...............................................172
Changing a Bulb...........................................357 Cargo Lamp and Central High Mounted
Brake Lamp Bulbs........................................ 359
Fog Lamp Bulbs................................................. 358
Front Park and Direction Indicator Lamp Bulbs.................................................................. 357
Headlamp Bulbs................................................. 357
License Plate Lamp Bulb............................... 360
Rear Lamps, Brake Lamps, Rear Direction Indicator and Reversing Lamp
Bulbs................................................................. 358
Changing a Fuse..........................................326 Fuses...................................................................... 326
Changing a Road Wheel..........................408 Dissimilar Spare Wheel and Tire Assembly
Information.................................................... 408
Location of the Spare Tire and Tools................................................................. 409
Removing the Spare Tire (With Spare Tire Carrier Only)................................................... 409
Tire Change Procedure.................................... 410
646
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201709, Second Printing Index