speed remains between 30 mph (48 km/h) and 35 mph
(56 km/h) for greater than 20 seconds or if the vehicle
speed falls below 30 mph (48 km/h).
NOTE:Speed thresholds for raising the vehicle only
apply if Automatic Aero Mode is enabled.
•To enter Aero Mode manually push the down button
once from NRH at any vehicle speed. To return to
NRH push the up button once while vehicle speed is
less than 56 mph (90 km/h).
NOTE:Automatic Aero Mode may be disabled through
vehicle settings on your Uconnect Radio when equipped
with UConnect 5.0, 8.4A, or 8.4AN. Refer to “Uconnect
Settings” in “Understanding Your Instrument Panel” for
further information.
•Entry/Exit Mode (Lowers the vehicle approximately 3
in [73 mm])– This position lowers the vehicle for
easier passenger entry and exit as well as lowering therear of the vehicle for easier loading and unloading of
cargo. To enter Entry/Exit Mode, push the “Down”
button twice from the NRH while the vehicle speed is
below 33 mph (53 km/h). Once the vehicle speed goes
below 15 mph (24 km/h) the vehicle height will begin
to lower. If the vehicle speed remains between 15 mph
(24 km/h) and 25 mph (40 km/h) for greater than 60
seconds, or the vehicle speed exceeds 25 mph
(40 km/h) the Entry/Exit change will be cancelled. To
return to Normal Height Mode, push the “Up” button
twice while in Entry/Exit or drive the vehicle over
15 mph (24 km/h). Entry/Exit mode may not be
available due to vehicle payload, an EVIC/DID mes-
sage will be displayed when this occurs. Refer to
“Electronic Vehicle Information Center (EVIC) or
Driver Information Display (DID)” in “Understanding
Your Instrument Panel” for further information.
5
STARTING AND OPERATING 559
NOTE:If equipped with a touch screen radio all
enabling/disabling of air suspension features must be
done through the radio. Refer to “Uconnect Settings” in
“Understanding Your Instrument Panel” for further in-
formation.
WARNING!
The air suspension system uses a high pressure
volume of air to operate the system. To avoid per-
sonal injury or damage to the system, see your
authorized dealer for service.
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 spare tire, the air suspension
system has a feature which allows the automatic levelingto be disabled. Refer to “Electronic Vehicle Information
Center (EVIC) or Driver Information Display (DID)” in
“Understanding Your Instrument Panel” for further in-
formation.
NOTE:This mode is intended to be enabled with engine
running.
Transport Mode
To assist with flat bed towing, the air suspension system
has a feature which will put the vehicle into Entry/Exit
height and disable the automatic load leveling system.
Refer to “Electronic Vehicle Information Center (EVIC) or
Driver Information Display (DID)” in “Understanding
Your Instrument Panel” for further information.
NOTE:This mode is intended to be enabled with engine
running and all doors closed.
5
STARTING AND OPERATING 561
Wheel Alignment Mode
Before performing a wheel alignment this mode must be
enabled. Refer to “Electronic Vehicle Information Center
(EVIC) or Driver Information Display (DID)” in “Under-
standing Your Instrument Panel” for further information.
NOTE:This mode is intended to be enabled with engine
running and all doors closed.
Protection Mode
In order to “protect” the air suspension system, the
vehicle will enter Protection Mode when load leveling
cannot be achieved. Some driving may be required to
clear the protection mode telltale in the EVIC/DID. Refer
to “Electronic Vehicle Information Center (EVIC) or
Driver Information Display (DID)” in “Understanding
Your Instrument Panel” for further information.NOTE:If equipped with a touch screen radio all
enabling/disabling of air suspension features must be
done through the radio. Refer to “Uconnect Settings” in
“Understanding Your Instrument Panel” for further in-
formation.
Electronic Vehicle Information Center
(EVIC)/Driver Infromation Display (DID) Display
Messages
When the appropriate conditions exist, a message will
appear in the EVIC/DID display. Refer to “Electronic
Vehicle Information Center (EVIC) or Driver Information
Display (DID)” in “Understanding Your Instrument
Panel” for further information.
An audible chime will be heard whenever a system error
has been detected.
562 STARTING AND OPERATING
Center (EVIC)” or “Driver Information Display (DID)”
in “Understanding Your Instrument Panel” for further
information.
•If disabling HSA using Uconnect Settings, refer to
“Uconnect Settings” in “Understanding Your Instru-
ment Panel” for further information.
For vehicles not equipped with the EVIC/DID, perform
the following steps:
1. Center the steering wheel (front wheels pointing
straight forward).
2. Shift the transmission into PARK.
3. Apply the parking brake.
4. Start the engine.
5. Rotate the steering wheel slightly more than one-half
turn to the left.6. Push the “ESC Off” button located in the lower switch
bank below the climate control four times within
twenty seconds. The “ESC Off Indicator Light” should
turn on and turn off two times.
7. Rotate the steering wheel back to center and then an
additional slighty more than one-half turn to the right.
8. Turn the ignition switch to the OFF position and then
back to the ON position. If the sequence was com-
pleted properly, the “ESC Off Indicator Light” will
blink several times to confirm HSA is disabled.
9. Repeat these steps if you want to return this feature to
its previous setting.
Traction Control System (TCS)
This system monitors the amount of wheel spin of each of
the driven wheels. If wheel spin is detected, the TCS may
apply brake pressure to the spinning wheel(s) and/or
reduce engine power to provide enhanced acceleration
5
STARTING AND OPERATING 625
Recommended Distribution Hitch Adjustment
Towing With 1500 Air Suspension
1. Set air suspension to normal ride height. No action is
required if already in normal ride height.
NOTE:The vehicle must remain in the engine running
position while attaching a trailer for proper leveling of
the air suspension system.
2. Position the truck to be ready to connect to the trailer
(do not connect the trailer).
3. Under radio suspension settings, turn on jack mode.
Jack mode will be canceled and procedure must be
restarted if the vehicle is driven at speeds above 5mph
(8kph).
4. Measure the height of the top of the front wheel
opening on the fender to ground, this is height H1.
Improper Adjustment Of Weight-Distributing Hitch
(Incorrect)
5
STARTING AND OPERATING 693
JACKING AND TIRE CHANGING
Jacking And Tire Changing 1500 Series Trucks
WARNING!
•Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off
the road to avoid the danger of being hit when
operating the jack or changing the wheel.
•Being under a jacked-up vehicle is dangerous. The
vehicle could slip off the jack and fall on you. You
could be crushed. Never put any part of your body
under a vehicle that is on a jack. If you need to get
under a raised vehicle, take it to a service center
where it can be raised on a lift.
•Never start or run the engine while the vehicle is
on a jack.
(Continued)
WARNING!(Continued)
•The jack is designed to be used as a tool for
changing tires only. The jack should not be used to
lift the vehicle for service purposes. The vehicle
should be jacked on a firm level surface only.
Avoid ice or slippery areas.
NOTE:If your vehicle is equipped with an air suspen-
sion system, there is a feature which allows the automatic
leveling to be disabled to assist with changing a tire.
If your vehicle is equipped with a touchscreen, this
feature can be activated through the Uconnect system.
Refer to “Uconnect Settings” in “Understanding Your
Instrument Panel” for further information.
If your vehicle is not equipped with a touchscreen, this
feature can be activated through the Electronic Vehicle
Information Center (EVIC) or Driver Information Display
(DID). Refer to “Electronic Vehicle Information Center
6
WHAT TO DO IN EMERGENCIES 729
Radio Frequency
General Information............19, 21, 34, 38, 47
Radio Operation..........................420
Radio (Sound Systems).....................417
Rain Sensitive Wiper System.................187
Ramp Travel Index........................569
Rear Axle (Differential).....................825
Rear Cargo Area Utility Rails.................270
Rear ParkSense System..................196, 205
Rear Seat, Folding.....................158, 159
Rear Window Features.....................249
Rear Window, Sliding......................251
Reclining Rear Seats.......................157
Recorder, Event Data.......................83
Recreational Towing.......................714
Shifting Into Transfer Case Neutral (N)........717
Shifting Out Of Transfer Case Neutral (N)......720
Reformulated Gasoline.....................676
Refrigerant...........................806, 807Reminder, Seat Belt.........................53
Remote Control
Starting System.........................34
Remote Keyless Entry (RKE)................25, 27
Programming Additional Key Fobs...........21
Programming Additional Transmitters.........21
Remote Sound System (Radio) Controls.........418
Remote Starting
Uconnect Customer Programmable Features. . .391, 410
Uconnect Settings....................391, 410
Remote Starting System......................34
Replacement Bulbs........................849
Replacement Keys.........................20
Replacement Parts.........................793
Replacement Tires.........................657
Reporting Safety Defects....................885
Restraint, Head...........................161
Restraints, Child...........................84
Restraints, Occupant........................51
10
INDEX 905
Trailer And Tongue Weight................697
Wiring...............................707
Trailer Towing Guide.......................697
Trailer Weight............................697
Transfer Case............................826
Electronically Shifted..............526, 533, 538
Fluid................................867
Transmission............................490
Automatic..................490, 499, 511, 826
Fluid................................867
Maintenance...........................826
Shifting..............................487
Transmitter Battery Service (Remote Keyless Entry) . .31
Transmitter Programming (Remote Keyless Entry) . . .25
Transmitter, Remote Keyless Entry (RKE).........25
Transporting Pets.........................116
Tread Wear Indicators......................656
Turn Signals...................183, 329, 851, 853Uconnect
Customer Programmable Features........391, 410
Operation.............................417
Uconnect Settings.......................379
Uconnect Settings....................391, 410
Uconnect 8.4A/8.4AN Voice Recognition
Additional Information...................467
Do Not Disturb........................466
General Information.....................467
Siri Eyes Free..........................466
Uconnect 8.4 Settings
Customer Programmable Features — Units.....401
Uconnect Settings
Customer Programmable Features......43, 388, 408
Passive Entry Programming..........43, 388, 408
Uconnect Settings....................388, 408
Uconnect Voice Command...................445
Uniform Tire Quality Grades.................887
910 INDEX