Black plate (49,1)Chevrolet Silverado Owner Manual - 2011
Driving and Operating 9-49
Tow/Haul Mode
Vehicles with an automatic
transmission have a Tow/Haul
Mode. The Tow/Haul Mode adjuststhe transmission shift pattern to
reduce shift cycling, providing
increased performance, vehicle
control, and transmission cooling
when towing or hauling heavy loads.
The selector button is located on
the end of the shift lever. Turn the
Tow/Haul Mode on and off by
pressing the button. When the tow/
haul is on, a light on the instrument
panel cluster will come on.
See
Tow/Haul Mode Light
on
page 5‑31for more information.
Also see “Tow/Haul Mode” under
Towing Equipment
on page 9‑111for more information.
Tow/Haul Mode
(Allison Transmission
or Hydra-Matic 6-Speed
Automatic Transmission)
Vehicles with an Allison
Transmission or Hydra-Matic
6-Speed Automatic Transmission
have a Tow/Haul Mode.
Black plate (50,1)Chevrolet Silverado Owner Manual - 2011
9-50 Driving and Operating
The Tow/Haul Mode adjusts the
transmission shift pattern to reduce
shift cycling, providing increased
performance, vehicle control, and
transmission cooling when towing
or hauling heavy loads.
Turn the Tow/Haul Mode on and
off by pressing the button, located
on the end of the shift lever. When
the tow/haul is on, a light on the
instrument panel cluster will
come on.
SeeTow/Haul Mode Light
on
page 5‑31for more information.
Also see “Tow/Haul Mode” under
Towing Equipment
on page 9‑111for more information.
Grade Braking
(Allison Transmission
or Hydra-Matic 6-Speed
Automatic Transmission)
The Grade Braking shift modes can
be activated by pressing the button
on the end of the shift control lever.
While in Range Selection Mode,
Grade Braking is deactivated
allowing the driver to select a
desired range of gears.
Grade Braking is only active while
the Tow/Haul Mode is selected and
you are not in the Range Selection
Mode. See “Tow/Haul Mode” listed
previously and Manual Mode
on
page 9‑47for more information
on the Range Selection Mode. Grade Braking assists in
maintaining desired vehicle speeds
when driving on downhill grades by
automatically implementing a shift
schedule that utilizes the engine
and transmission to slow the
vehicle. This reduces wear on the
braking system and increases
control of the vehicle. Grade
Braking monitors vehicle speed,
acceleration, engine torque and
brake pedal usage. Using this
information, it detects when the
truck is on a downhill grade and
the driver desires to slow the
vehicle by pressing the brake.
This feature is active when
the exhaust brake is enabled
(if equipped).
Also see
Towing Equipment
on
page 9‑111for more information.
Black plate (71,1)Chevrolet Silverado Owner Manual - 2011
Driving and Operating 9-71
The system should initialize before
the vehicle reaches 32 km/h
(20 mph). In some cases, it may
take approximately 3.2 km (2 miles)
of driving before the system
initializes.
If cruise control is being used when
StabiliTrak activates, the cruise
control automatically disengages.
The cruise control can be
re-engaged when road conditions
allow. SeeCruise Control
on
page 9‑73for more information.
If the system fails to turn on or
activate, the StabiliTrak light
along with one of the following
messages will be displayed on the
Driver Information Center (DIC):
TRACTION CONTROL OFF,
SERVICE TRACTION CONTROL,
STABILITRAK OFF, SERVICE
STABILITRAK. If these DIC
messages appear, make sure
the StabiliTrak system has not
been turned off using the StabiliTrak
on/off button. Then turn the vehicle
off, wait 15 seconds, and turn it
back on again to reset the system. If any of these messages still
appear on the DIC, the vehicle
should be taken in for service.
For more information on the DIC
messages, see
Ride Control System
Messages on page 5‑49.The StabiliTrak light will flash on the
instrument panel cluster when the
system is both on and activated.
The system may be heard or felt
while it is working; this is normal.
The traction control disable button
is located on the instrument panel
below the climate controls. The Traction Control System (TCS)
part of StabiliTrak can be turned
off by pressing and releasing the
StabiliTrak button. To disable both
TCS and StabiliTrak, press and
hold
5untilFilluminates and the
appropriate DIC message displays.
TCS and StabiliTrak can be turned
on by pressing and releasing the
StabiliTrak button if they are not
automatically shut off for any other
reason.
When TCS or StabiliTrak is
turned off, the StabiliTrak light
and the appropriate message
will be displayed on the DIC to
warn the driver. The vehicle will still
have brake-traction control when
traction control is off, but will not
be able to use the engine speed
management system. See “Traction
Control Operation” next for more
information.
When the traction control system
has been turned off, system noises
may still be heard as a result of the
brake-traction control coming on.
Black plate (74,1)Chevrolet Silverado Owner Manual - 2011
9-74 Driving and Operating
The cruise control buttons are
located on the left side of the
steering wheel.
I(On/Off):Press to turn the
system on or off. The indicator light
is on when cruise control is on and
turns off when cruise control is off.
+ RES (Resume/Accelerate):
Press briefly to resume to a
previously set speed, or press and
hold to accelerate.
SET −(Set/Coast): Press to set
the speed and activate cruise
control or make the vehicle
decelerate.
[(Cancel): Press to disengage
cruise control without erasing the
set speed from memory.
Setting Cruise Control
The cruise control light on the
instrument panel cluster will come
on after the cruise control has been
set to the desired speed.
{WARNING
If you leave your cruise control on
when you are not using cruise,
you might hit a button and go into
cruise when you do not want to.
You could be startled and even
lose control. Keep the cruise
control switch off until you want
to use cruise control.
1. Press
I.
2. Get up to the desired speed. 3. Press the SET−
button located
on the steering wheel and
release it.
4. Take your foot off the accelerator.
Resuming a Set Speed
If the cruise control is set at a
desired speed and then the brakes
are applied, the cruise control is
disengaged without erasing the
set speed from memory.
Once the vehicle speed reaches
about 40 km/h (25 mph) or more,
press the +RES button on the
steering wheel. The vehicle returns
to the previous set speed and stays
there.
Black plate (83,1)Chevrolet Silverado Owner Manual - 2011
Driving and Operating 9-83
Fuel
For diesel engine vehicles, see
“Fuel for Diesel Engines”in the
Duramax Diesel Supplement.
For Vehicles with gasoline engines,
please read this.
Gasoline
Use of the recommended fuel
is an important part of the proper
maintenance of this vehicle. To help
keep the engine clean and maintain
optimum vehicle performance, we
recommend the use of gasoline
advertised as TOP TIER Detergent
Gasoline.
Look for the TOP TIER label on the
fuel pump to ensure gasoline meets
enhanced detergency standards
developed by auto companies. A list
of marketers providing TOP TIER
Detergent Gasoline can be found
at www.toptiergas.com.
The 8th digit of the Vehicle
Identification Number (VIN) shows
the code letter or number that identifies the vehicle's engine.
The VIN is at the top left of the
instrument panel. See
Vehicle
Identification Number (VIN)
on
page 12‑1.
Vehicles that have a FlexFuel badge
and a yellow fuel cap can use either
unleaded gasoline or ethanol fuel
containing up to 85% ethanol (E85).
See Fuel E85 (85% Ethanol)
on
page 9‑86. For all other vehicles,
use only the unleaded gasoline
described under Recommended
Fuel on page 9‑84.
Black plate (91,1)Chevrolet Silverado Owner Manual - 2011
Driving and Operating 9-91
Driving with a Trailer
{WARNING
When towing a trailer, exhaust
gases may collect at the rear
of the vehicle and enter if the
liftgate, trunk/hatch, or rear-most
window is open.
Engine exhaust contains Carbon
Monoxide (CO) which cannot be
seen or smelled. It can cause
unconsciousness and even death.
To maximize safety when towing
a trailer:
.Have the exhaust system
inspected for leaks and make
necessary repairs before
starting a trip.
.Never drive with the liftgate,
trunk/hatch, or rear-most
window open.(Continued)
WARNING (Continued)
.Fully open the air outlets
on or under the instrument
panel.
.Adjust the Climate Control
system to a setting that
brings in only outside air
and set the fan speed to the
highest setting. See Climate
Control System in the Index.
For more information about
Carbon Monoxide, see Engine
Exhaust on page 9‑42.
Towing a trailer requires a
certain amount of experience.
The combination you are driving is
longer and not as responsive as the
vehicle itself. Get acquainted with
the handling and braking of the rig
before setting out for the open road. Before starting, check all trailer
hitch parts and attachments, safety
chains, electrical connectors,
lamps, tires, and mirrors. If the
trailer has electric brakes, start the
combination moving and then apply
the trailer brake controller by hand
to be sure the brakes work.
During the trip, check occasionally
to be sure that the load is secure
and the lamps and any trailer
brakes still work.
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving the vehicle without a trailer.
This can help to avoid heavy
braking and sudden turns.
Black plate (92,1)Chevrolet Silverado Owner Manual - 2011
9-92 Driving and Operating
Passing
More passing distance is
needed when towing a trailer.
The combination will not accelerate
as quickly and is longer so it is
necessary to go much farther
beyond the passed vehicle
before returning to the lane.
Backing Up
Hold the bottom of the steering
wheel with one hand. To move
the trailer to the left, move that
hand to the left. To move the trailer
to the right, move your hand to
the right. Always back up slowly
and, if possible, have someone
guide you.
Making Turns
Notice:Making very sharp turns
while trailering could cause the
trailer to come in contact with
the vehicle. The vehicle could be
damaged. Avoid making very
sharp turns while trailering.
When turning with a trailer, make
wider turns than normal. Do this
so the trailer will not strike soft
shoulders, curbs, road signs, trees,
or other objects. Avoid jerky or
sudden maneuvers. Signal well
in advance.
If the trailer turn signal bulbs burn
out, the arrows on the instrument
panel will still flash for turns. It is
important to check occasionally to
be sure the trailer bulbs are still
working.
Driving on Grades
Reduce speed and shift to a
lower gear beforestarting down
a long or steep downgrade. If the
transmission is not shifted down,
the brakes might get hot and no
longer work well.
Vehicles can tow in D (Drive). Shift
the transmission to a lower gear if
the transmission shifts too often
under heavy loads and/or hilly
conditions.
The Tow/Haul Mode may be used
if the transmission shifts too often.
See Tow/Haul Mode on page 9‑49.
When towing at high altitude on
steep uphill grades, consider the
following: Engine coolant will boil
at a lower temperature than at
normal altitudes. If the engine is
turned off immediately after towing
at high altitude on steep uphill
grades, the vehicle may show
signs similar to engine overheating.
Black plate (115,1)Chevrolet Silverado Owner Manual - 2011
Driving and Operating 9-115
.Red: Battery Feed
.Dark Blue: Trailer Brake
If the vehicle is equipped with the
“Heavy-Duty Trailering”option,
please refer to “Heavy-Duty Trailer
Wiring Package” earlier in this
section.
When the camper-wiring harness
is ordered without the heavy-duty
trailering package, an eight-wire
harness with a seven-pin connector
is located at the rear of the vehicle
and is tied to the vehicle's frame.
Electric Brake Control Wiring
Provisions
These wiring provisions are
included with the vehicle as part of
the trailer wiring package. These
provisions are for an electric brake
controller. The instrument panel
contains blunt cut wires behind the
steering column for the trailer brake
controller. The harness contains the
following wires:
.Dark Blue: Brake Signal to
Trailer Connector
.Red/Black: Battery
.Light Blue/White: Brake Switch
.White: Ground
The harness should be installed by
your dealer or a qualified service
center. If the vehicle is equipped with an
Integrated Trailer Brake Control
(ITBC) System, the blunt cuts exist,
but are not connected further in the
harness. If an aftermarket trailer
brake controller is installed, the
ITBC must be disconnected. Do not
power both ITBC and aftermarket
controllers to control the trailer
brakes at the same time.
Tow/Haul Mode
Pressing this button at the end of
the shift lever turns on and off the
Tow/Haul Mode.