
Study your owner's manual and any
supplements for specific information about
equipment features, instructions for safe
driving and additional precautions to
reduce the risk of an accident or serious
injury.
Four-wheel drive system (If Equipped)
WARNING:
Do not become
overconfident in the ability of four-wheel
drive vehicles. Although a four-wheel
drive vehicle may accelerate better than
a two-wheel drive vehicle in low traction
situations, it won't stop any faster than
two-wheel drive vehicles. Always drive
at a safe speed.
A vehicle equipped with four-wheel drive,
when selected, has the ability to use all
four wheels to power itself. This increases
traction which may enable you to safely
drive over terrain and road conditions that
a conventional two-wheel drive vehicle
cannot.
Power is supplied to all four wheels
through a transfer case or power transfer
unit. Four-wheel drive vehicles allow you
to select different modes as necessary. For
information on transfer case operation and
shifting procedures, See
Four-Wheel
Drive (page 200). For information on
transfer case maintenance, See
Maintenance (page 325). You should
become thoroughly familiar with this
information before you operate your
vehicle.
On some four-wheel drive vehicles, the
initial shift from two-wheel to four-wheel
drive when the vehicle is moving can cause
a momentary clunk and ratcheting sound.
These sounds are normal and are not
cause for concern. In four-wheel drive vehicles, the size of the
spare tire relative to the remaining tires can
have an effect on the 4x4 system. If there
is a significant difference between the size
of a spare and the remaining tires,
four-wheel drive functionality may be
limited.
See Using Four-Wheel Drive
(page 200).
How your vehicle differs from
other vehicles
Sport utility vehicles and trucks can differ
from some other vehicles in a few
noticeable ways. Your vehicle may be:
• Higher - to allow higher load carrying
capacity and to allow it to travel over
rough terrain without getting hung up
or damaging underbody components.
• Shorter - to give it the capability to
approach inclines and drive over the
crest of a hill without getting hung up
or damaging underbody components.
All other things held equal, a shorter
wheelbase may make your vehicle
quicker to respond to steering inputs
than a vehicle with a longer wheelbase.
• Narrower - to provide greater
maneuverability in tight spaces,
particularly in off-road use.
As a result of the above dimensional
differences, Sport utility vehicles and
trucks often have a higher center of gravity
and a greater difference in center of gravity
between the loaded and unloaded
condition. These differences that make
your vehicle so versatile also make it
handle differently than an ordinary
passenger car.
352
Expedition (TB8) Canada/United States of America, enUSA, Edition date: 201907, Third-Printing- Wheels and Tires

Information Contained on the Tire
Sidewall ............................................................ 355
Temperature A B C............................................ 354
Traction AA A B C............................................... 353
Treadwear............................................................. 353
Tire Pressure Monitoring System..........368 Changing Tires With a Tire Pressure
Monitoring System....................................... 370
Understanding Your Tire Pressure Monitoring System ...................................... 370
Tires See: Wheels and Tires...................................... 351
Towing a Trailer.............................................275 Load Placement................................................. 275
Towing Points................................................307
Towing the Vehicle on Four Wheels.........................................................296
Four-wheel-down Towing............................. 296
Recreational Towing........................................ 296
Towing
..............................................................275
Traction Control.............................................213
Principle of Operation....................................... 213
Trailer Reversing Aids
.................................276
Principle of Operation...................................... 276
Pro Trailer Backup Assist™............................ 276
Setting Up Pro Trailer Backup Assist..........276
Troubleshooting.................................................. 281
Using Pro Trailer Backup Assist................... 280
Trailer Sway Control...................................285
Transfer Case Fluid Check........................334
Transmission Code Designation............383
Transmission..................................................193
Transporting the Vehicle..........................306
U
Under Hood Overview...............................326
Unique Driving Characteristics
................179
Universal Garage Door Opener...............165 HomeLink Wireless Control System...........165
USB Port.........................................................407 Locating the USB Ports.................................. 408
Using Adaptive Cruise Control................237 Automatic Cancellation.................................. 240
Blocked Sensor................................................... 242
Canceling the Set Speed................................ 240
Changing the Set Speed................................. 240
Detection Issues.................................................. 241Following a Vehicle...........................................
238
Following a Vehicle to a Complete Stop................................................................... 239
Hilly Condition Usage........................................ 241
Overriding the Set Speed............................... 240
Park Brake Application..................................... 241
Resuming the Set Speed................................ 240
Setting the Adaptive Cruise Speed.............238
Setting the Adaptive Cruise Speed When Your Vehicle is Stationary.......................... 238
Setting the Gap Distance............................... 239
Switching Adaptive Cruise Control Off........................................................................\
241
Switching Adaptive Cruise Control On....................................................................... 238
Switching to Normal Cruise Control...........243
System Not Available....................................... 242
Using Four-Wheel Drive...........................200 4WD Switch Selections.................................. 200
4X4 Indicator Lights......................................... 200
Driving Off-Road With Truck and Utility Vehicles............................................................ 203
How Your Vehicle Differs From Other Vehicles............................................................ 202
Operating 4WD Vehicles With Spare or Mismatched Tires......................................... 202
Using Hill Descent Control.........................217 Hill Descent Modes............................................. 217
Using MyKey With Remote Start Systems...........................................................67
Using Power Running Boards
....................85
Automatic Power Deploy.................................. 85
Automatic Power Stow..................................... 85
Bounce-back......................................................... 86
Enabling and Disabling...................................... 85
Manual Power Deploy........................................ 85
Using Snow Chains.....................................367
Using Stability Control................................215 Stability Control and Traction Control with
Roll Stability Control ™ (RSC™)..............215
Using SYNC™ With Your Media Player.............................................................416
Audio Voice Commands................................... 417
Media Sources..................................................... 416
Using SYNC™ With Your Phone.............412 Accessing Features through the Phone
Menu................................................................... 413
Pairing a Phone................................................... 412
537
Expedition (TB8) Canada/United States of America, enUSA, Edition date: 201907, Third-Printing- Index