WARNING!
Do not adjust the steering column while driving.
Adjusting the steering column while driving or driv-
ing with the steering column unlocked, could cause
(Continued)
WARNING!(Continued)
the driver to lose control of the vehicle. Failure to
follow this warning may result in serious injury or
death.
DRIVER ADJUSTABLE PEDALS — IF EQUIPPED
The adjustable pedals system is designed to allow a
greater range of driver comfort for steering wheel tilt and
seat position. This feature allows the brake, accelerator,
and clutch pedals (if equipped) to move toward or away
from the driver to provide improved position with the
steering wheel.
The adjustable pedal switch is located to the left side of
the steering column.
Tilt Steering Lever
166 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
If the transmission temperature exceeds normal operat-
ing limits, the powertrain controller will modify the
transmission shift schedule and expand the range of
torque converter clutch engagement. This is done to
prevent transmission damage due to overheating.
If the transmission becomes extremely hot or is in danger
of overheating, the “Transmission Temperature Warning
Light” may illuminate and the transmission may operate
differently until the transmission cools down.
NOTE:Use caution when operating a heavily loaded
vehicle at low speeds (such as towing a trailer up a steep
grade, or in stop-and-go traffic) during hot weather. In
these conditions, torque converter slip can impose a
significant additional heat load on the cooling system.
Downshifting the transmission to the lowest possible
gear (when climbing a grade), or shifting to NEUTRAL
(when stopped in heavy traffic) can help to reduce this
excess heat generation. During cold temperatures, transmission operation may
be modified depending on engine and transmission
temperature as well as vehicle speed. This feature im-
proves warm up time of the engine and transmission to
achieve maximum efficiency. Engagement of the torque
converter clutch is inhibited until the transmission fluid
is warm (refer to the “Note” under “Torque Converter
Clutch” in this section). On models with 66RFE transmis-
sion, top overdrive gear is also inhibited until the trans-
mission fluid is warm, and during extremely cold tem-
peratures (-16°F [-27°C] or below), operation may briefly
be limited to first and direct gears only. On trucks with
AS66RC transmission, fifth and sixth gears may be
inhibited briefly on cold starts below 41°F (5°C), and
during very cold temperatures (-4°F [-20°C] or below),
operation may briefly be limited to third gear only.
During this condition, the ability of the vehicle to accel-
erate under heavily loaded conditions may be reduced.
306 STARTING AND OPERATING
Torque Converter Clutch
A feature designed to improve fuel economy has been
included in the automatic transmission on your vehicle.
A clutch within the torque converter engages automati-
cally at calibrated speeds. This may result in a slightly
different feeling or response during normal operation in
the upper gears. When the vehicle speed drops or during
some accelerations, the clutch automatically disengages.
NOTE:
•The torque converter clutch will not engage (and
66RFE-equipped trucks will not shift to sixth gear),
until the transmission fluid and engine coolant are
warm [usually after 1 to 3 miles (2 to 5 km) of driving].
Because engine speed is higher when the torque con-
verter clutch is not engaged, it may seem as if the
transmission is not shifting properly when cold. This is
normal. Using the Electronic Range Select (ERS) shift control, when the transmission is sufficiently warm,
will demonstrate that the transmission is able to shift
into and out of Overdrive.
• If the vehicle has not been driven for several days, the
first few seconds of operation after shifting the trans-
mission into gear may seem sluggish. This is due to the
fluid partially draining from the torque converter into
the transmission. This condition is normal and will not
cause damage to the transmission. The torque con-
verter will refill within five seconds after starting the
engine.
FOUR-WHEEL DRIVE OPERATION — IF
EQUIPPED
Four-wheel drive trucks are equipped with either a
manually shifted transfer case or an electronically shifted
transfer case. Refer to the operating instructions for your
transfer case, located in this section for further informa-
tion.
5
STARTING AND OPERATING 311
2H Or 4H To 4L
With the vehicle rolling at 2 to 3 mph (3 to 5 km/h), shift
the transmission into NEUTRAL. While the vehicle is
coasting at 2 to 3 mph (3 to 5 km/h), shift the transfer
case lever firmly to the desired position. Do not pause in
transfer case NEUTRAL.
NOTE:
•Pausing in transfer case NEUTRAL in vehicles
equipped with an automatic transmission may require
shutting the engine OFF to avoid gear clash while
completing the shift. If difficulty occurs, shift the
transmission into NEUTRAL, hold foot on brake, and
turn the engine OFF. Make shift to the desired mode.
• Shifting into or out of 4L is possible with the vehicle
completely stopped, however difficulty may occur due to the mating clutch teeth not being properly aligned.
Several attempts may be required for clutch teeth
alignment and shift completion to occur. The preferred
method is with the vehicle rolling 2 to 3 mph (3 to
5 km/h). Avoid attempting to engage or disengage 4L
with the vehicle moving faster than 2 to 3 mph (3 to
5 km/h).
• Do not attempt to shift into or from 4L while the
transmission is in gear.
Transfer Case Position Indicator Light
The “Transfer Case Position Indicator Light” in the
instrument cluster is used to alert the driver that the front
axle is fully engaged and all four wheels are driving.
5
STARTING AND OPERATING 315
3. Press and hold the brake pedal.
4. Depress the clutch pedal on a manual transmission.
5. If the transfer case is in 4WD AUTO (if equipped),press a selector button or rotate the selector switch to
shift the transfer case into the 2WD or 4WD LOCK
position.
• With manual shift transfer case, shift the transfer
case lever into NEUTRAL (N).
• With electronic shift transfer case, press and hold the
transfer case NEUTRAL (N) button. Some models
have a small, recessed Nbutton (at the center of the
transfer case switches) that must be pressed using a
ballpoint pen or similar object. Other models have a
rectangular NEUTRAL switch, below the rotary
transfer case control knob. The NEUTRAL (N) indi-
cator light will blink while the shift is in progress.
The light will stop blinking (stay on solid) when the shift to NEUTRAL (N) is complete. After the shift is
completed and the NEUTRAL (N) light stays on,
release the NEUTRAL (N) button.
6. Release the parking brake.
7. Shift the transmission into REVERSE.
8. Release the brake pedal (and clutch pedal on manual transmissions) for five seconds and ensure that there is
no vehicle movement.
9. Repeat steps 7 and 8 with automatic transmission in DRIVE or manual transmission in first gear.
10. Shift the transmission to NEUTRAL. Firmly apply the parking brake. Turn OFF the engine. For vehicles
with Keyless Enter-N-Go™, press and hold the EN-
GINE START/STOP button until the engine shuts off.
11. Shift the transmission into PARK or place manual transmission in gear (NOT in NEUTRAL).
414 STARTING AND OPERATING
5. Shift the transmission into NEUTRAL.•With manual shift transfer case, shift the transfer
case lever to the desired position.
• With electronic shift transfer case, press and hold the
transfer case NEUTRAL (N) button until the NEU-
TRAL (N) indicator light turns off. After the NEU-
TRAL (N) indicator light turns off, release the NEU-
TRAL (N) button. After the NEUTRAL (N) button
has been released, the transfer case will shift to the
position indicated by the selector switch.
NOTE: When shifting out of transfer case NEUTRAL (N),
turning the engine OFF is not required, but may be
helpful to avoid gear clash.
6. Shift automatic transmission into PARK.
7. Release the brake pedal (and clutch pedal on a manual transmission).
8. Disconnect vehicle from the tow vehicle. 9. Start the engine.
10. Press and hold the brake pedal.
11. Release the parking brake.
12. Shift the transmission into gear, release the brake
pedal (and clutch pedal on manual transmissions),
and check that the vehicle operates normally.
NOTE: With electronic shift transfer case:
• Steps 3 through 5 are requirements that must be met
prior to pressing the button to shift out of NEUTRAL
(N), and must continue to be met until the shift has
been completed. If any of these requirements are not
met before pressing the button or are no longer met
during the shift, the NEUTRAL (N) indicator light will
flash continuously until all requirements are met or
until the button is released.
416 STARTING AND OPERATING
Cavity Cartridge Fuse Micro FuseDescription
F58 20 Amp Yellow
(Gas Engine) / 25 Amp Natural
(Cummins Diesel Engine) Engine Cooling Pump
F60 15 Amp BlueUnderhood Lamp
F61 20 Amp YellowPower Take-off Unit – If Equipped
F62 10 Amp RedAir Conditioning Clutch
F63 20 Amp Yellow Ignition Coils (Gas), Urea Heater (Cummins
Diesel)
F64 25 Amp NaturalFuel Injectors / Powertrain
F65 10 Amp RedUSB interface
F66 10 Amp Red Sunroof / Passenger Window Switches /
Rain Sensor
F67 10 Amp Red CD / DVD / Bluetooth Hands-free Module –
If Equipped
490 MAINTAINING YOUR VEHICLE
System, Remote Starting.....................31
Tachometer ............................. .200
Tilt Steering Column ...................... .165
Tip Start ............................... .295
Tire and Loading Information Placard ...........351
Tire Markings ........................... .344
Tires ..................................113 Aging (Life of Tires) .....................365
Air Pressure .......................... .356
Chains .............................. .368
Compact Spare ........................ .362
Dual ............................... .371
General Information .....................356
High Speed .......................... .359
Inflation Pressures ...................... .357
Life of Tires .......................... .365
Load Capacity ........................ .351
Pressure Monitor System (TPMS) ............372Pressure Warning Light
...................206
Quality Grading ....................... .523
Radial .............................. .359
Replacement .......................... .366
Rotation ............................. .370
Safety .............................. .344
Sizes ............................... .345
Snow Tires ........................... .360
Spinning ............................ .364
Tread Wear Indicators ....................365
Wheel Nut Torque ..................... .428
Tire Safety Information .....................344
Tongue Weight/Trailer Weight ................395
Torque Converter Clutch ....................311
Tow Hooks, Emergency .....................437
Towing ............................... .389
Disabled Vehicle ....................... .438
Guide .............................. .394
Recr
eational .......................... .410
540 INDEX