STARTING AND OPERATING 293
ENGINE START/STOP Button Functions — With Driver’s
Foot OFF The Brake Pedal (In PARK Or NEUTRAL Posi-
tion)
The ENGINE START/STOP button operates similar to an
ignition switch. It has three modes: OFF, ACC, and RUN. To
change the ignition modes without starting the vehicle and
use the accessories, follow these directions:
1. Start with the ignition in the OFF mode.
2. Push the ENGINE START/STOP button once to place the ignition to the ACC mode.
3. Push the ENGINE START/STOP button a second time to place the ignition to the RUN mode.
4. Push the ENGINE START/STOP button a third time to return the ignition to the OFF mode. AutoPark — Rotary Shifter and 8-Speed Transmission
Only
AutoPark is a supplemental feature to assist in placing the
vehicle in PARK should the situations on the following
pages occur. It is a back up system and should not be relied
upon as the primary method by which the driver shifts the
vehicle into PARK.
The conditions under which AutoPark will engage are
outlined on the following pages.
WARNING!
• Driver inattention could lead to failure to place the vehicle in PARK. ALWAYS DO A VISUAL CHECK that your
vehicle is in PARK by verifying that a solid (not blinking)
“P” is indicated in the Instrument Cluster Display and
near the gear selector. If the "P" indicator is blinking, your
vehicle is not in PARK. As an added precaution, always
apply the parking brake when exiting the vehicle.
• AutoPark is a supplemental feature. It is not designed to replace the need to shift your vehicle into PARK. It is
a back up system and should not be relied upon as the
primary method by which the driver shifts the vehicle
into PARK.5
294 STARTING AND OPERATING
If the vehicle is not in PARK and the driver turns off the
engine, the vehicle may AutoPark.
AutoPark will engage when all of these conditions are met:
• Vehicle is equipped with a rotary shifter and an 8-speedtransmission
• Vehicle is not in PARK
• Vehicle Speed is 1.2 MPH (1.9 km/h) or less
• Ignition switched from RUN to ACC
NOTE:
For Keyless Go equipped vehicles, The engine will turn off
and the ignition switch will change to ACC mode. After
30 minutes the ignition switches to OFF automatically,
unless the driver turns the ignition switch OFF.
If the vehicle is not in PARK and the driver exits the vehicle
with the engine running, the vehicle may AutoPark.
AutoPark will engage when all of these conditions are met:
• Vehicle is equipped with a rotary shifter and an 8-speed
transmission
• Vehicle is not in PARK
• Vehicle speed is 1.2 MPH (1.9 km/h) or less
• Driver’s seat belt is unbuckled
• Driver’s door is ajar
• Brake Pedal is not depressed
The MESSAGE “ AutoPark Engaged Shift to P then Shift to
Gear ” will display in the instrument cluster.
NOTE:
In some cases the ParkSense graphic will be displayed in the
instrument cluster, causing the “ AutoPark Engaged Shift to
P then Shift to Gear ” to not be seen. In these cases, the shifter
must be returned to “P” to select desired gear.
STARTING AND OPERATING 295
If the driver shifts into PARK while moving, the vehicle
may AutoPark.
AutoPark will engage ONLYwhen vehicle speed is 1.2 MPH
(1.9 km/h) or less.
The MESSAGE “ Vehicle Speed is Too High to Shift to
P ”will be displayed in the instrument cluster if vehicle speed
is above 1.2 MPH (1.9 km/h).
4WD LOW — If Equipped
AutoPark will be disabled when operating the vehicle in
4WD LOW.
The MESSAGE “ AutoPark Disabled ” will be displayed in
the instrument cluster. Additional customer warnings will be given when all of
these conditions are met:
• Vehicle is not in PARK
• Driver’s Door is ajar
• Vehicle is in 4WD LOW range
The MESSAGE “
AutoPark Not Engaged ” will be displayed
in the instrument cluster. A warning chime will continue
until you shift the vehicle into PARK or the Driver’s Door is
closed.
ALWAYS DO A VISUAL CHECK
that your vehicle is in
PARK by looking for the "P" in the Instrument Cluster
Display and near the shifter. As an added precaution, always
apply the parking brake when exiting the vehicle.
If Engine Fails To Start
If the engine fails to start after you have followed the
“Normal Starting” procedure, it may be flooded. Push the
accelerator pedal all the way to the floor and hold it there
while the engine is cranking. This should clear any excess
fuel in case the engine is flooded.
The starter motor will engage automatically, run for 10
seconds, and then disengage. Once this occurs, release the
WARNING!
If vehicle speed is above 1.2 MPH (1.9 km/h), the
transmission will default to NEUTRAL until the vehicle
speed drops below 1.2 MPH (1.9 km). A vehicle left in
the NEUTRAL position can roll. As an added precaution,
always apply the parking brake when exiting the
vehicle.
5
STARTING AND OPERATING 301
NOTE:
You must press and hold the brake pedal while shifting out
of PARK.
Ignition Park Interlock
This vehicle is equipped with an Ignition Park Interlock
which requires the transmission to be in PARK before the
ignition can be turned to the OFF mode. This helps the driver
avoid inadvertently leaving the vehicle without placing the
transmission in PARK. This system also locks the transmis-
sion in PARK whenever the ignition is in the OFF mode.
NOTE:
The transmission is NOT locked in PARK when the ignition
is in the ACC mode (even though the engine will be off).
Ensure that the transmission is in PARK, and the ignition is
OFF (not in ACC mode) before exiting the vehicle.
Brake/Transmission Shift Interlock System
This vehicle is equipped with a Brake Transmission Shift
Interlock System (BTSI) that holds the transmission gear
selector in PARK unless the brakes are applied. To shift the
transmission out of PARK, the engine must be running and
the brake pedal must be pressed.
The brake pedal must also be pressed to shift from
NEUTRAL into DRIVE or REVERSE when the vehicle is
stopped or moving at low speeds.
Eight-Speed Automatic Transmission
The transmission is controlled using a rotary electronic gear
selector located on the instrument panel. The transmission
gear range (PRND) is displayed both above the gear selector
and in the instrument cluster. To select a gear range, simply
rotate the gear selector. You must press the brake pedal to
shift the transmission out of PARK (or NEUTRAL, when the
vehicle is stopped or moving at low speeds). To shift past
multiple gear ranges at once (such as PARK to DRIVE),
simply rotate the gear selector to the appropriate detent.
Select the DRIVE range for normal driving.
CAUTION!
• Shift into or out of PARK or REVERSE only after the vehicle has come to a complete stop.
• Do not shift between PARK, REVERSE, NEUTRAL, or DRIVE when the engine is above idle speed.
• Before shifting into any gear, make sure your foot is firmly pressing the brake pedal.
5
302 STARTING AND OPERATING
NOTE:
In the event of a mismatch between the gear selector position
and the actual transmission gear (for example, driver selects
PARK while driving), the position indicator will blink
continuously until the selector is returned to the proper posi-
tion, or the requested shift can be completed.
The electronically-controlled transmission adapts its shift
schedule based on driver inputs, along with environmental
and road conditions. The transmission electronics are
self-calibrating; therefore, the first few shifts on a new
vehicle may be somewhat abrupt. This is a normal condition,
and precision shifts will develop within a few hundred miles
(kilometers).
Only shift from DRIVE to PARK or REVERSE when the
accelerator pedal is released and the vehicle is stopped. Be
sure to keep your foot on the brake pedal when shifting
between these gears.
The transmission gear selector has only PARK, REVERSE,
NEUTRAL, and DRIVE positions. Manual downshifts can be
made using the Electronic Range Select (ERS) shift control.
Pressing the GEAR-/GEAR+ switches (on the steering
wheel) while in the DRIVE position will select the highest
available transmission gear, and will display that gear limit
in the instrument cluster as 1, 2, 3, etc. Refer to “Electronic Range Select (ERS) Operation” in this section for further
information. Some models will display both the selected gear
limit, and the actual current gear, while in ERS mode.
Electronic Transmission Gear Selector
Gear Ranges
Do not depress the accelerator pedal when shifting from
PARK or NEUTRAL into another gear range.
NOTE:
After selecting any gear range, wait a moment to allow the
selected gear to engage before accelerating. This is especially
important when the engine is cold.
304 STARTING AND OPERATING
The following indicators should be used to ensure that you
have properly engaged the transmission into the PARK posi-
tion:
• Look at the transmission gear position display and verify that it indicates the PARK position (P), and is not blinking.
• With brake pedal released, verify that the gear selector will not move out of PARK.
REVERSE (R)
This range is for moving the vehicle backward. Shift into
REVERSE only after the vehicle has come to a complete stop.
• Unintended movement of a vehicle could injure those
in or near the vehicle. As with all vehicles, you should
never exit a vehicle while the engine is running. Before
exiting a vehicle, always come to a complete stop, then
apply the parking brake, shift the transmission into
PARK, and turn the ignition OFF. When the ignition is
in the OFF mode, the transmission is locked in PARK,
securing the vehicle against unwanted movement.
• When exiting the vehicle, always make sure the igni -
tion is in the OFF mode, remove the key fob from the
vehicle, and lock the vehicle.
• Never leave children alone in a vehicle, or with access to an unlocked vehicle. Allowing children to be in a
vehicle unattended is dangerous for a number of
reasons. A child or others could be seriously or fatally
injured. Children should be warned not to touch the
parking brake, brake pedal or the transmission gear
selector.
• Do not leave the key fob in or near the vehicle (or in a location accessible to children), and do not leave the
ignition in the ACC or ON/RUN mode. A child could
operate power windows, other controls, or move the
vehicle.
WARNING! (Continued)CAUTION!
• DO NOT race the engine when shifting from PARK or NEUTRAL into another gear range, as this can damage
the drivetrain.
• Before moving the transmission gear selector out of PARK, you must start the engine, and also press the
brake pedal. Otherwise, damage to the gear selector
could result.
STARTING AND OPERATING 307
Electronic Range Select (ERS) Operation — Eight-Speed
Transmission
The Electronic Range Select (ERS) shift control allows the
driver to limit the highest available gear when the transmis-
sion is in DRIVE. For example, if you set the transmission
gear limit to 4 (fourth gear), the transmission will not shift
above fourth gear (except to prevent engine overspeed), but
will shift through the lower gears normally.
You can switch between DRIVE and ERS mode at any
vehicle speed. When the transmission gear selector is in
DRIVE, the transmission will operate automatically, shifting
between all available gears. Tapping the GEAR- switch (on
the steering wheel) will activate ERS mode, display the
current gear in the instrument cluster, and set that gear as the
top available gear. Once in ERS mode, tapping the GEAR- or
GEAR+ switch will change the top available gear. To exit ERS mode, simply push and hold the GEAR+ switch
until the gear limit display disappears from the instrument
cluster.
1 — GEAR + Switch
2 — GEAR – Switch
WARNING!
Do not downshift for additional engine braking on a
slippery surface. The drive wheels could lose their grip
and the vehicle could skid, causing a collision or
personal injury.
5
318 STARTING AND OPERATING
Trailer Decoupling/Unloading - The air suspension system
will load level (lower/exhaust only) once after 12 minutes
after the vehicle is turned off. This allows for easy removal of
a trailer and/or load from the back of the truck by main -
taining the ride height. After 12 minutes you will need to
turn the ignition to the run position for the air suspension to
re-level due to addition/removal of load in the vehicle. If the
air suspension system is disabled using the settings menu
(Tire Jack Mode, Transport Mode, Alignment Mode, or Bed
Lowering Mode) the system will remain disabled when the
vehicle is turned off. Reactivating the air suspension can be
accomplished via the settings menu or driving the vehicle
above 5 mph (8 km/h) for Tire Jack Mode or Alignment
Mode and 16 mph (26 km/h) for Transport Mode and Bed
Lowering Mode.
NOTE:
• Most 3500 models will not lower to Alternate Trailer Height (ATH) when unloaded.
• Refer to “Trailer Towing” in “Starting And Operating” for further information. Ignition OFF Behavior
For a predetermined amount of time after the ignition is off the
air suspension may adjust to maintain a proper appearance.
Air Suspension Modes
The air suspension system has multiple modes to protect the
system in unique situations:
Tire/Jack Mode
To assist with changing a tire, the air suspension system has a
feature which allows the automatic leveling to be disabled. This
mode is intended to be enabled with engine running. Refer to
“Instrument Cluster Display” in “Getting To Know Your Instru
-
ment Panel” or “Uconnect Settings” in “Multimedia” if equipped
with a touch screen radio for further information.
NOTE:
This mode is intended to be enabled with engine running.
WARNING!
The air suspension system uses a high pressure volume
of air to operate the system. To avoid personal injury or
damage to the system, see your authorized dealer for
service.