The electronic torque overlay steering
system adds supplemental steering assist
to the hydraulic gear when needed,
dependent on vehicle conditions such as
vehicle speed, steering wheel angle, and
steering wheel torque. The hydraulic
steering system provides the majority of
steering assistance. The electronic torque
overlay enables features such as pro trailer
backup assistance and lane departure
warning.
If your vehicle loses electrical power while
you are driving, your vehicle loses electric
power steering assistance. The steering
system still operates, and you can steer
your vehicle with hydraulic assist. Steering
your vehicle with only hydraulic assist
requires more effort.
Extreme continuous steering may increase
the effort required for you to steer your
vehicle. This increased effort prevents
overheating and permanent damage to
the steering system. You do not lose the
ability to steer your vehicle manually.
Typical steering and driving maneuvers
allow the system to cool and return to
normal operation.
Adaptive Learning (If Equipped)
The electronic power steering system
adaptive learning helps correct road
irregularities and improves overall handling
and steering feel. It communicates with
the brake system to help operate
advanced stability control and accident
avoidance systems. Whenever the battery
is disconnected or a new battery installed,
you must drive your vehicle a short
distance before the system relearns the
strategy and reactivates all systems. LOCATING THE HYDRAULIC
POWER STEERING FLUID
RESERVOIR
The hydraulic power steering fluid reservoir
is found in the engine compartment.
See
Under Hood Overview (page 397).
CHECKING THE HYDRAULIC
POWER STEERING FLUID
Check the power steering fluid. See
Scheduled Maintenance
(page 622). If
adding fluid is necessary, use only
MERCON LV ATF.
Check the fluid level when it is at ambient
temperature.
1. Check the fluid level in the reservoir. It should be between the MIN and MAX
range. Do not add fluid if the level is
within this range.
2. If the fluid level is low, add fluid to bring
the fluid level up to between the MIN
and MAX range.
3. Switch the engine on.
4. While the engine idles, turn the steering
wheel left and right several times.
5. Switch the engine off.
6. Recheck the fluid level in the reservoir. Do not add fluid if the level is between
the MIN and MAX range.
7. If the fluid is low, add fluid in small amounts, continuously checking the
level until it is between the MIN and
MAX range. For proper fluid type, See
Capacities and Specifications (page
467
). Be sure to put the cap back on the
reservoir.
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HYDRAULIC POWER STEERING
ADAPTIVE STEERING
Note:
The adaptive steering system has
diagnostic checks that continuously monitor
the system. If the system detects a fault, a
message displays in the information display.
If a red warning message displays, stop your
vehicle as soon as it is safe to do so. The
message may clear if the fault is no longer
present. If an adaptive steering system
warning message appears each time you
start your vehicle, have the system checked
as soon as possible.
The adaptive steering system continually
changes the steering ratio with changes to
vehicle speed, optimizing the steering
response in all conditions. The system also
changes when you switch on the
transmission tow/haul feature. When you
select the tow/haul button, the adaptive
steering system reduces vehicle sensitivity
to steering inputs at higher vehicle speeds,
while maintaining the ease of parking and
maneuverability at low speeds.
Note: The adaptive steering system is
designed with a locking device. With the
lock engaged, the adaptive steering system
remains mechanically locked at a fixed
steering ratio. You may also notice a click
when you switch the vehicle on or after you
switch it off, as the lock disengages or
engages. Note:
If your vehicle loses electrical power
or detects a fault when you are driving, the
system automatically shuts down and you
retain normal steering function with a fixed
steering ratio. During this time, it is possible
that the steering wheel may not be straight
when the vehicle is driving straight ahead.
In addition, the driver may notice that the
steering wheel angle required to steer the
vehicle may be different.
Note: During parking maneuvers, the
adaptive steering system balances the driver
workload for various steering wheel inputs
and vehicle loading conditions. Under
extreme operating conditions the system
locking device may engage. This strategy
prevents overheating and permanent
damage to the adaptive steering system.
Typical steering and driving maneuvers
allow the system to cool and return to
normal operation.
STEERING –
TROUBLESHOOTING
STEERING – WARNING
INDICATORS The adaptive steering system
indicator illuminates if the
system detects a fault during the
continuous diagnostic checks.
Note: If a red warning message displays,
stop your vehicle as soon as it is safe to do
so.
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REAR VIEW CAMERA GUIDE
LINES
Active guide lines.
A
Centerline.
B
Fixed guide line: Green zone.
C
Fixed guide line: Yellow zone.
D
Fixed guide line: Red zone.
E
Rear bumper.
F
Active guide lines only show with fixed
guide lines. To use active guide lines, turn
the steering wheel to point the guide lines
toward an intended path. If the steering
wheel position changes while reversing,
your vehicle might deviate from the
intended path. The fixed and active guide lines fade in and
out depending on the steering wheel
position. The active guide lines do not
display when the steering wheel position
is straight.
Use caution while reversing. Objects in the
red zone are closest to your vehicle and
objects in the green zone are farther away.
Objects get closer to your vehicle as they
move from the green zone to the yellow or
red zones. Use the side view mirrors and
rear view mirror to get better coverage on
both sides and rear of your vehicle.
Note:
Active guide lines and fixed guide
lines are only available when the
transmission is in reverse (R).
Note: The centerline is only available if the
active or fixed guide lines are on.
Note: Not all camera modes work properly
without an auxiliary camera.
REAR VIEW CAMERA
SETTINGS
ZOOMING THE REAR VIEW
CAMERA IN AND OUT WARNING: When manual zoom is
on, the full area behind your vehicle may
not show. Be aware of your surroundings
when using the manual zoom feature.
Selectable settings for this feature are
zoom in (+) and zoom out (-). Press the
symbol on the camera screen to change
the view. The default setting is zoom off.
This allows you to get a closer view of an
object behind your vehicle. The zoomed
image keeps the bumper in the image to
provide a reference. The zoom is only
active while the transmission is in reverse
(R).
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Bed Camera
The bed camera is mounted within the
high-mount stop lamp. It displays the
contents of your truck bed. The camera
contains a dynamic guideline to help locate
the center of your vehicle. This view can
be accessed while in drive (D) or reverse
(R).
Auxiliary Camera
The auxiliary camera is a variant of the rear
view camera and is accessed by pressing
the AUX button on the display screen when
moving in reverse (R) or in drive (D). It
displays a rear view image from the back
of a trailer while in reverse.
360 DEGREE CAMERA GUIDE
LINES
Note:
Active guide lines are only available
when the transmission is in reverse (R). Active guide lines.
A
Centerline.
B
Fixed guide line: Green zone.
C
Fixed guide line: Yellow zone.
D
Fixed guide line: Red zone.
E
Rear bumper.
F
Active guide lines only show with fixed
guide lines. Turn the steering wheel to
point the guide lines toward an intended
path. If the steering wheel position changes
when reversing, your vehicle could deviate
from the intended path.
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The fixed and active guide lines fade in and
out depending on the steering wheel
position. The active guide lines do not
display when the steering wheel position
is straight.
Objects in the red zone are closest to your
vehicle and objects in the green zone are
farther away. Objects get closer to your
vehicle as they move from the green zone
to the yellow or red zones. Use the side
view mirrors and rear view mirror to get
better coverage on both sides and rear of
your vehicle.
Keep Out Zone
The Keep Out Zone is represented by the
yellow dotted lines running parallel to your
vehicle.
360 DEGREE CAMERA
SETTINGS
SWITCHING THE 360 DEGREE
CAMERA ON AND OFF
The 360 degree camera system
button is on the instrument
panel. The front and rear
cameras have multiple screens which
consist of: •
Normal view.
• Normal view with 360.
• Split view.
• Bed camera.
• Auxiliary camera.
• Hitch view.
Note: The rear view camera activates when
you switch into reverse (R). Additional views
are then accessible on the touchscreen.
When in park (P), neutral (N) or drive (D),
the front images display when the button
is pressed. When in reverse (R), only the
rear images display when the button is
pressed.
Note: Not all cameras are available.
Note: The 360 degree camera system turns
off when your vehicle is in motion at low
speed, except when in reverse (R).
SWITCHING THE 360 DEGREE
CAMERA VIEW Press to access the different
camera views.
Front normal view provides an
image of what is directly in front
of your vehicle.
Front split view provides an
extended view of what is in front
of your vehicle.
Normal + 360 degree view
contains the normal camera
view next to a 360 degree
camera view. Rear normal view provides an
image of what is directly behind
your vehicle.
Rear split view provides an
extended view of what is behind
your vehicle.
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WHAT IS CRUISE CONTROL
Cruise control lets you maintain a set
speed without keeping your foot on the
accelerator pedal.
Requirements
Use cruise control when the vehicle speed
is greater than 20 mph (30 km/h).
SWITCHING CRUISE CONTROL
ON AND OFF WARNING:
Do not use cruise
control on winding roads, in heavy traffic
or when the road surface is slippery. This
could result in loss of vehicle control,
serious injury or death.
The cruise controls are on the steering
wheel. See What Is Cruise Control (page
270
).
Switching Cruise Control On Press the button.
Switching Cruise Control Off Press the button when the
system is in standby mode.
The system also turns off when you switch
the ignition off.
Note: The set speed erases when you
switch the system off. SETTING THE CRUISE
CONTROL SPEED WARNING:
When you are going
downhill, your vehicle speed could
increase above the set speed. The
system does not apply the brakes.
Drive to the speed you prefer. Press either the Set+ or Set-
buttons to set the current speed.
Take your foot off the accelerator pedal.
Note: The indicator changes color in the
information display.
Changing the Set Speed Press the Set+ button to
increase the set speed in small
increments. Press and hold the
Set+ button to accelerate. Release the
button when you have reached your
preferred speed. Press the Set- button to
decrease the set speed in small
increments. Press and hold the
Set- button to decelerate. Release the
button when you have reached your
preferred speed.
Note: If you accelerate by pressing the
accelerator pedal, the set speed does not
change. When you release the accelerator
pedal, your vehicle returns to the speed that
you previously set.
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Optimal system performance requires a
clear view of the road by the windshield
camera.
Optimal performance may not occur if:
•
The camera is blocked.
• There is poor visibility or lighting
conditions.
• There are bad weather conditions.
SWITCHING ADAPTIVE
CRUISE CONTROL ON AND OFF
The cruise controls are on the steering
wheel.
Switching Adaptive Cruise Control
On Press and release the button.
The indicator, current gap setting
and set speed appear in the
instrument cluster display.
Switching Adaptive Cruise Control
Off Press and release the button
when the system is in standby
mode or switch the ignition off.
Note: When you switch the system off, the
set speed and gap setting clears.
ADAPTIVE CRUISE CONTROL
AUTOMATIC CANCELLATION
The system is not functional at vehicle
speeds below 12 mph (20 km/h). The
information display indicates low engine
speed, an audible alarm sounds and the
automatic braking releases if the vehicle
drops below this speed. The system may cancel if:
•
The tires lose traction.
• You apply the parking brake.
The system may deactivate or prevent
activating when requested if:
• The vehicle has a blocked sensor.
• The brake temperature is too high.
• There is a failure in the system or a
related system.
Note: If the engine speed drops too low, an
audible warning sounds and a message
appears in the information display.
Automatic braking releases.
SETTING THE ADAPTIVE
CRUISE CONTROL SPEED
Drive to the speed you prefer. Press the Set+ or Set- buttons
to set the current speed.
Take your foot off the accelerator pedal.
The indicator, current gap setting and set
speed appear in the information display. A vehicle image illuminates if there is a
vehicle detected in front of you.
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WHAT IS DRIVE MODE
CONTROL
Your vehicle has various drive modes that
you can select for different driving
conditions. Depending on the drive mode
that you select, the system adjusts various
vehicle settings.
HOW DOES DRIVE MODE
CONTROL WORK
Drive mode control adjusts your vehicle
configuration for each mode you select.
Changing the drive mode adjusts the
steering effort and feel of the steering
system.
The stability and traction control assist
your vehicle control in adverse conditions
or high-performance driving.
Throttle control enhances the powertrain
response, transmission controls become
optimized with shift schedules, and
four-wheel drive settings are optimized
and tuned to each mode.
Changing the drive mode can engage or
disengage the electronic locking
differentials.
Changing the drive mode changes the
four-wheel drive mode to the default
setting for the selected drive mode.
Note:
The system has diagnostic checks
that continuously monitor the system for
proper operation. If a mode is unavailable
due to a system fault, the drive mode
system defaults to normal. When the
system defaults to normal, the driveline
settings remain the same as prior to the
system fault. Note:
The system reverts to the normal
mode each time you start your vehicle. At
startup the system also displays a prompt
on the instrument cluster display that gives
you the option to return to the previously
selected drive mode during the last ignition
cycle. If you select yes, the system returns
to the last selected drive mode and the
default driveline settings associated with
that mode. If you select no, the system
remains in normal mode and the driveline
settings remain the same as selected in the
prior ignition cycle. If you do not select yes
or no, the system stays in normal mode and
the driveline settings remain the same as
selected in the prior ignition cycle.
SELECTING A DRIVE MODE To change the drive mode setting, press
the drive mode button. The drive mode
selection menu appears in the instrument
cluster and allows you to select through
the available drive modes.
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