Page 349 of 675
For further information, refer to the Uconnect Supple-
ment Manual or visit UconnectPhone.com. STEERING WHEEL AUDIO CONTROLS — IF
EQUIPPED
The remote sound system controls are located on the back
surface of the steering wheel. Reach behind the wheel to
access the switches.
Center Console USB/AUX SD Card Media Hub1 — USB Port
2 — SD Card Slot
3 — Aux Jack
Remote Sound System Controls (Rearview Of Steering
Wheel) 4UNDERSTANDING YOUR INSTRUMENT PANEL 347
Page 387 of 675

TIP: Voice Text Reply is not compatible with iPhone, but
if your vehicle is equipped with Siri Eyes Free, you can
use your voice to send a text message.
Climate (8.4A/8.4AN)
Too hot? Too cold? Adjust vehicle temperatures hands-
free and keep everyone comfortable while you keep
moving ahead. (If vehicle is equipped with climate
control.)
Push the VR button . After the beep, say one of the
following commands:
• Set driver temperature to 70 degrees
• Set passenger temperature to 70 degrees
TIP: Voice Command for Climate may only be used to
adjust the interior temperature of your vehicle. Voice
Command will not work to adjust the heated seats or
steering wheel if equipped. Navigation (8.4A/8.4AN)
The Uconnect navigation feature helps you save time and
become more productive when you know exactly how to
get to where you want to go. (Navigation is optional on
the Uconnect 8.4A system. See your dealer to activate
navigation at any time.) Uconnect 8.4A/8.4AN Climate 4UNDERSTANDING YOUR INSTRUMENT PANEL 385
Page 400 of 675

▫ Transfer Case Position Indicator Light ..... .427
▫ Electronically Shifted Transfer Case (Four-Position
Switch) — If Equipped ................ .427
▫ Shifting Procedure .................... .431
LIMITED-SLIP DIFFERENTIAL ............ .434
DRIVING ON SLIPPERY SURFACES ........ .434
▫ Acceleration ........................ .434
▫ Traction ........................... .435
DRIVING THROUGH WATER ............ .436
▫ Flowing/Rising Water ................. .436
▫ Shallow Standing Water ................ .436
POWER STEERING .................... .437
▫ Power Steering Fluid Check ............. .438 PARKING BRAKE ..................... .439
BRAKE SYSTEM ...................... .442
▫ Hydraulic Brake Assist ................. .442
ELECTRONIC BRAKE CONTROL SYSTEM . . . .442
▫ Electronic Brake Force Distribution (EBD) . . . .443
▫ Brake System Warning Light ............. .443
▫ Anti-Lock Brake System (ABS) ........... .443
▫ Anti-Lock Brake Warning Light ........... .445
▫ Brake Assist System (BAS) .............. .445
▫ Hill Start Assist (HSA) ................ .446
▫ Traction Control System (TCS) ........... .449
▫ Electronic Stability Control (ESC) ......... .450
▫ Electronic Roll Mitigation (ERM) ......... .454398 STARTING AND OPERATING
Page 410 of 675

LOCK/OFF position, and the transmission is locked in
PARK whenever the ignition switch is in the LOCK/OFF
position.
NOTE: If a malfunction occurs, the system will trap the
Key Fob in the ignition switch to warn you that this
safety feature is inoperable. The engine can be started
and stopped but the Key Fob cannot be removed until
you obtain service.
Brake/Transmission Shift Interlock System
This vehicle is equipped with a Brake Transmission Shift
Interlock system (BTSI) that holds the gear selector in
PARK unless the brakes are applied. To shift the trans-
mission out of PARK, the ignition must be turned to the
ON/RUN position (engine running or not) and the brake
pedal must be pressed. Six–Speed Automatic Transmission — If
Equipped
Chassis Cab models (with automatic transmission) may
use either the AS66RC transmission (which is equipped
with a Power Take-Off (PTO) access cover on the side of
the transmission case), or the 66RFE transmission (which
has no PTO access cover).
The transmission gear position display (located in the
instrument cluster) indicates the transmission gear range.
The gear selector is mounted on the right side of the
steering column. You must press the brake pedal to move
the gear selector out of PARK (refer to “Brake/
Transmission Shift Interlock System” in this section). To
drive, move the gear selector from PARK or NEUTRAL to
the DRIVE position. Pull the gear selector toward you
when shifting into REVERSE or PARK, or when shifting
out of PARK.408 STARTING AND OPERATING
Page 439 of 675

CAUTION!• Always check the depth of the standing water
before driving through it. Never drive through
standing water that is deeper than the bottom of
the tire rims mounted on the vehicle.
• Determine the condition of the road or the path
that is under water and if there are any obstacles in
the way before driving through the standing water.
• Do not exceed 5 mph (8 km/h) when driving
through standing water. This will minimize wave
effects.
• Driving through standing water may cause damage
to your vehicle’s drivetrain components. Always
inspect your vehicle’s fluids (i.e., engine oil, trans-
mission, axle, etc.) for signs of contamination (i.e.,
fluid that is milky or foamy in appearance) after
driving through standing water. Do not continue to (Continued) CAUTION! (Continued)operate the vehicle if any fluid appears contami-
nated, as this may result in further damage. Such
damage is not covered by the New Vehicle Limited
Warranty.
• Getting water inside your vehicle’s engine can
cause it to lock up and stall out, and cause serious
internal damage to the engine. Such damage is not
covered by the New Vehicle Limited Warranty.
POWER STEERING
The standard power steering system will give you good
vehicle response and increased ease of maneuverability
in tight spaces. The system will provide mechanical
steering capability if power assist is lost. 5STARTING AND OPERATING 437
Page 440 of 675

If for some reason the power assist is interrupted, it will
still be possible to steer your vehicle. Under these condi-
tions, you will observe a substantial increase in steering
effort, especially at very low vehicle speeds and during
parking maneuvers.
NOTE:
• Increased noise levels at the end of the steering wheel
travel are considered normal and do not indicate that
there is a problem with the power steering system.
• Upon initial start-up in cold weather, the power steer-
ing pump may make noise for a short amount of time.
This is due to the cold, thick fluid in the steering
system. This noise should be considered normal, and it
does not in any way damage the steering system. CAUTION!Prolonged operation of the steering system at the end
of the steering wheel travel will increase the steering
fluid temperature and it should be avoided when
possible. Damage to the power steering pump may
occur.
Power Steering Fluid Check
Checking the power steering fluid level at a defined
service interval is not required. The fluid should only be
checked if a leak is suspected, abnormal noises are
apparent, and/or the system is not functioning as antici-
pated. Coordinate inspection efforts through an autho-
rized dealer.438 STARTING AND OPERATING
Page 441 of 675

CAUTION!Do not use chemical flushes in your power steering
system as the chemicals can damage your power
steering components. Such damage is not covered by
the New Vehicle Limited Warranty.
WARNING!Fluid level should be checked on a level surface and
with the engine off to prevent injury from moving
parts and to ensure accurate fluid level reading. Do
not overfill. Use only manufacturer’s recommended
power steering fluid.
If necessary, add fluid to restore to the proper indicated
level. With a clean cloth, wipe any spilled fluid from all
surfaces. Refer to “Fluids, Lubricants, And Genuine
Parts” in “Maintaining Your Vehicle” for further informa-
tion. PARKING BRAKE
Before leaving the vehicle, make sure that the parking
brake is fully applied, the engine is off and the Key Fob
is removed from the ignition switch. Also, be certain to
leave an automatic transmission in PARK, or manual
transmission in REVERSE or first gear.
The foot operated parking brake is located below the
lower left corner of the instrument panel. To apply the
parking brake, firmly push the parking brake pedal fully.
To release the parking brake, pull the parking brake
release handle. 5STARTING AND OPERATING 439
Page 444 of 675

BRAKE SYSTEM
If power assist is lost for any reason (for example,
repeated brake applications with the engine off), the
brakes will still function. However, you will experience a
substantial increase in braking effort to stop the vehicle.
If either the front or rear hydraulic system loses normal
braking capability, the remaining system will still func-
tion with some loss of overall braking effectiveness. This
will be evident by increased pedal travel during applica-
tion, greater pedal force required to slow or stop, and
activation of the “Brake Warning Light” and the “ABS
Warning Light” (if equipped) during brake use.
The brake system power assist is provided by a hydro-
boost unit which shares fluid with the power steering
system. You may experience some clicking or hissing
noises from the hydro-boost system during hard braking
conditions. NOTE: Under cold temperatures, pedal effort will be
higher than normal until the power steering fluid reaches
operating temperature.
Hydraulic Brake Assist
The brake system power assist is provided by a hydro-
boost unit which shares fluid with the power steering
system. You may experience some clicking or hissing
noises from the hydro-boost system during hard braking
conditions.
NOTE: Under cold temperatures, pedal effort will be
higher than normal until the power steering fluid reaches
operating temperature.
ELECTRONIC BRAKE CONTROL SYSTEM
Your vehicle is equipped with an advanced Electronic
Brake Control system (EBC). This system includes Elec-
tronic Brake Force Distribution (EBD), Anti-Lock Brake
System (ABS), Brake Assist System (BAS), Hill Start442 STARTING AND OPERATING