park assist GMC SIERRA 1500 2011 User Guide

Black plate (69,1)GMC Sierra Owner Manual - 2011
Driving and Operating 9-69
Braking in Emergencies
ABS allows the driver to steer and
brake at the same time. In many
emergencies, steering can help
more than even the very best
braking.
Parking Brake
Set the parking brake by holding
the regular brake pedal down, then
pushing down the parking brake
pedal.If the ignition is on, the brake
system warning light will come on.
See
Brake System Warning Light on
page 5‑27.
Notice: Driving with the parking
brake on can overheat the brake
system and cause premature
wear or damage to brake system
parts. Make sure that the parking
brake is fully released and the
brake warning light is off before
driving.
To release the parking brake, hold
the regular brake pedal down, then
push down momentarily on the
parking brake pedal until you feel
the pedal release. Slowly pull your
foot up off the parking brake pedal.
If the parking brake is not released
when you begin to drive, the brake
system warning light will flash and a
chime will sound warning you that
the parking brake is still on.
If you are towing a trailer and
are parking on a hill, see Driving
Characteristics and Towing Tips on
page 9‑91.
Brake Assist (Except
With 4.3L V6 Engine)
If this vehicle has StabiliTrak®, it
also has a Brake Assist feature
designed to assist the driver in
stopping or decreasing vehicle
speed in emergency driving
conditions. This feature uses the
stability system hydraulic brake
control module to supplement
the power brake system under
conditions where the driver has
quickly and forcefully applied the
brake pedal in an attempt to quickly
stop or slow down the vehicle.
The stability system hydraulic brake
control module increases brake
pressure at each corner of the
vehicle until the ABS activates.

Black plate (76,1)GMC Sierra Owner Manual - 2011
9-76 Driving and Operating
Ending Cruise Control
There are three ways to end cruise
control:
.To disengage cruise control;
step lightly on the brake pedal.
.Press[on the steering wheel.
.To turn off the cruise control,
press
Ion the steering wheel.
Erasing Speed Memory
The cruise control set speed is
erased from memory by pressing
the
Ibutton or if the ignition is
turned off.
Object Detection
Systems
Ultrasonic Parking Assist
For vehicles with the Ultrasonic
Rear Parking Assist (URPA) system,
it operates at speeds less than
8 km/h (5 mph), and assists the
driver with parking and avoiding
objects while in R (Reverse).
The sensors on the rear bumper
are used to detect the distance to
an object up to 2.5 m (8 ft) behind
the vehicle, and at least 25.4 cm
(10 in) off the ground.
{WARNING
The Ultrasonic Rear Parking
Assist (URPA) system does not
replace driver vision. It cannot
detect:
.Objects that are below the
bumper, underneath the
vehicle, or too close or far
from the vehicle.
.Children, pedestrians,
bicyclists, or pets.
If you do not use proper care
before and while backing, vehicle
damage, injury, or death could
occur. Even with URPA, always
check behind the vehicle before
backing up. While backing, be
sure to look for objects and check
the vehicle's mirrors.

Black plate (77,1)GMC Sierra Owner Manual - 2011
Driving and Operating 9-77
How the System Works
URPA comes on automatically
when the shift lever is moved into
R (Reverse). A single tone sounds
to indicate the system is working.
URPA operates only at speeds less
than 8 km/h (5 mph).
An obstacle is indicated by audible
beeps. The interval between the
beeps becomes shorter as the
vehicle gets closer to the obstacle.
When the distance is less than
30 cm (12 in) the beeps are
continuous.
To be detected, objects must be at
least 25.4 cm (10 in) off the ground
and below tailgate level. Objects
must also be within 2.5 m (8 ft) from
the rear bumper. This distance may
be less during warmer or humid
weather.
The system can be disabled by
pressing the rear park aid disable
button located next to the radio.
The indicator light comes on and
PARK ASSIST OFF displays on the
Driver Information Center (DIC) to
indicate that URPA is off; seeObject
Detection System Messages on
page 5‑46.
Notice: If you use URPA while
the tailgate is lowered, it may
not detect an object behind your
vehicle, and you might back into
the object and damage your
vehicle. Always verify the tailgate
is closed when using URPA or
turn off URPA when driving with
the tailgate lowered.
When the System Does Not
Seem to Work Properly
The following messages may be
displayed on the DIC:
SERVICE PARK ASSIST: If this
message occurs, take the vehicle to
your dealer to repair the system.
PARK ASSIST OFF: This message
occurs if the driver disables the
system.
PARK ASST BLOCKED SEE
OWNERS MANUAL: This
message can occur under the
following conditions:
.The ultrasonic sensors are not
clean. Keep the vehicle's rear
bumper free of mud, dirt, snow,
ice, and slush. For cleaning
instructions, see “Washing the
Vehicle” underExterior Care on
page 10‑108.

Black plate (78,1)GMC Sierra Owner Manual - 2011
9-78 Driving and Operating
.The park assist sensors are
covered by frost or ice. Frost or
ice can form around and behind
the sensors and may not always
be seen; this can occur after
washing the vehicle in cold
weather. The message may
not clear until the frost or ice
has melted.
.A trailer was attached to the
vehicle, or a bicycle or an object
was hanging out of the tailgate
during the last drive cycle. Once
the attached object is removed
and the tailgate is raised, URPA
will return to normal operation.
.A tow bar is attached to the
vehicle.
.The vehicle's bumper is
damaged. Take the vehicle to
your dealer to repair the system.
.Other conditions are affecting
system performance. Examples
of this are vibrations from a
jackhammer or the compression
of air brakes on a very large
truck.
Rear Vision
Camera (RVC)
This vehicle may have a Rear
Vision Camera (RVC) system. Read
this entire section before using it.
{WARNING
The Rear Vision Camera (RVC)
system does not replace driver
vision. RVC does not:
.Detect objects that are
outside the camera's field
of view, below the bumper,
or underneath the vehicle.
.Detect children, pedestrians,
bicyclists, or pets.
Do not back the vehicle by only
looking at the RVC screen, or use
the screen during longer, higher (Continued)
WARNING (Continued)
speed backing maneuvers or
where there could be cross-traffic.
Your judged distances using the
screen will differ from actual
distances.
If you do not use proper care
before backing up, you could
hit a vehicle, child, pedestrian,
bicyclist, or pet, resulting in
vehicle damage, injury, or death.
Even though the vehicle has
the RVC system, always check
carefully before backing up by
checking behind and around the
vehicle.

Black plate (80,1)GMC Sierra Owner Manual - 2011
9-80 Driving and Operating
The delay after shifting out of
R (Reverse) is approximately
10 seconds. The delay can be
cancelled by performing one of
the following:
.Pressing a hard key on the
navigation system.
.Shifting into P (Park).
.Reaching a vehicle speed of
8 km/h (5 mph).
There is a message on the rear
vision camera screen that states
“Check Surroundings for Safety.”
Adjusting the Brightness and
Contrast of the Screen
To adjust the brightness and
contrast of the screen, press the
MENU button while the rear vision
camera image is on the display.
Any adjustments made will only
affect the rear vision camera screen.
](Brightness): Touch the + (plus)
or –(minus) screen buttons to
increase or decrease the brightness
of the screen.
_(Contrast): Touch the + (plus) or
– (minus) screen buttons to increase
or decrease the contrast of the
screen.
Symbols
The navigation system may have
a feature that lets the driver view
symbols on the navigation screen
while using the RVC. The Ultrasonic
Rear Park Assist (URPA) system
must not be disabled to use the
caution symbols. If URPA has
been disabled and the symbols
have been turned on, the Rear
Parking Assist Symbols Unavailable
error message may display.
See Ultrasonic Parking Assist on
page 9‑76. The symbols appear when an object
has been detected by the URPA
system. The symbol may cover the
object when viewing the navigation
screen.
To turn the symbols on or off:
1. Make sure that URPA has not
been disabled.
2. Shift into P (Park).
3. Press the MENU hard key to enter the configure menu
options, then press the MENU
hard key repeatedly until Display
is selected or touch the Display
screen button.
4. Select the Rear Camera Options screen button. The Rear Camera
Options screen will display.
5. Touch the Symbols screen button. The screen button will
be highlighted when on.

Black plate (117,1)GMC Sierra Owner Manual - 2011
Driving and Operating 9-117
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.
This indicator light on the instrument
panel cluster comes on when the
Tow/Haul Mode is on.
Tow/Haul is a feature that assists
when pulling a heavy trailer or a
large or heavy load. SeeTow/Haul
Mode on page 9‑51 for more
information.
Tow/Haul is designed to be most
effective when the vehicle and
trailer combined weight is at least
75 percent of the vehicle's Gross
Combined Weight Rating (GCWR).
See “Weight of the Trailer” under
Trailer Towing on page 9‑95.
Tow/Haul is most useful under
the following driving conditions:
.When pulling a heavy trailer or
a large or heavy load through
rolling terrain.
.When pulling a heavy trailer
or a large or heavy load in
stop-and-go traffic.
.When pulling a heavy trailer
or a large or heavy load in busy
parking lots where improved low
speed control of the vehicle is
desired.
Operating the vehicle in Tow/Haul
when lightly loaded or with no
trailer at all will not cause damage.
However, there is no benefit to
the selection of Tow/Haul when
the vehicle is unloaded. Such a
selection when unloaded may
result in unpleasant engine and
transmission driving characteristics
and reduced fuel economy. Tow/
Haul is recommended only when
pulling a heavy trailer or a large
or heavy load.

Black plate (26,1)GMC Sierra Owner Manual - 2011
10-26 Vehicle Care
If the decision is made not to lift the
hood when this warning appears,
get service help right away.
SeeRoadside Assistance Program
(U.S. and Canada) on page 13‑8
or Roadside Assistance Program
(Mexico) on page 13‑10.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fans are running. If the
engine is overheating, both fans
should be running. If they are not,
do not continue to run the engine
and have the vehicle serviced.
Notice: Engine damage from
running your engine without
coolant is not covered by the
vehicle warranty. See Overheated
Engine Protection Operating
Mode for information on driving
to a safe place in an emergency. Notice:
If the engine catches fire
while driving with no coolant, the
vehicle can be badly damaged.
The costly repairs would not
be covered by the vehicle
warranty. See Overheated Engine
Protection Operating Mode on
page 10‑28 for information on
driving to a safe place in an
emergency.
If Steam is Coming from the
Engine Compartment
{WARNING
Steam from an overheated engine
can burn you badly, even if you
just open the hood. Stay away
from the engine if you see or
hear steam coming from it.
Turn it off and get everyone
away from the vehicle until it
cools down. Wait until there
is no sign of steam or coolant
before you open the hood.
(Continued)
WARNING (Continued)
If you keep driving when the
vehicles engine is overheated,
the liquids in it can catch fire.
You or others could be badly
burned. Stop the engine if it
overheats, and get out of the
vehicle until the engine is cool.
SeeOverheated Engine
Protection Operating Mode on
page 10‑28 for information on
driving to a safe place in an
emergency.

Black plate (55,1)GMC Sierra Owner Manual - 2011
Vehicle Care 10-55
FusesUsage
6 Driver Side Turn
Signal, Stoplamp
7 Instrument Panel
Back Lighting
8 Passenger Side Turn
Signal, Stoplamp
9 Passenger Door
Module, Driver Unlock
10 Power Door Lock 2
(Unlock Feature)
11 Power Door Lock 2
(Lock Feature)
12 Stoplamps, Center
High‐
Mounted
Stoplamp
13 Rear Climate Controls
14 Power Mirror Fuses
Usage
15 Body Control
Module (BCM)
16 Accessory Power
Outlets
17 Interior Lamps
18 Power Door Lock 1
(Unlock Feature)
19 Rear Seat
Entertainment
20 Ultrasonic Rear
Parking Assist, Power
Liftgate
21 Power Door Lock 1
(Lock Feature)
22 Driver Information
Center (DIC)
23 Rear Wiper
24 Cooled Seats Fuses
Usage
25 Driver Seat Module,
Remote Keyless Entry
System
26 Driver Power Door
Lock (Unlock Feature)
Circuit
Breaker Usage
LT DR Driver Side Power
Window Circuit
Breaker
Harness
Connector Usage
LT DR Driver Door
Harness
Connection
BODY Harness Connector
BODY Harness Connector

Black plate (85,1)GMC Sierra Owner Manual - 2011
Vehicle Care 10-85
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place, well off the road,
if possible. Turn on the hazard
warning flashers. SeeHazard
Warning Flashers on page 6‑5.
{WARNING
Changing a tire can be
dangerous. The vehicle can
slip off the jack and roll over
or fall on you or other people.
You and they could be badly
injured or even killed. Find a level
place to change your tire. To help
prevent the vehicle from moving:
1. Set the parking brake firmly.
2. Put an automatic transmission shift lever in
P (Park), or shift a manual
transmission to 1 (First) or
R (Reverse).
(Continued)
WARNING (Continued)
3. If you have afour-wheel-drive vehicle,
be sure the transfer case
is in a drive gear –not in
N (Neutral).
4. Turn off the engine and do not restart while the vehicle
is raised.
5. Do not allow passengers to remain in the vehicle.
To be even more certain the
vehicle will not move, put blocks
at the front and rear of the tire
farthest away from the one being
changed. That would be the tire
on the other side, at the opposite
end of the vehicle. When the vehicle has a flat tire (B),
use the following example as a
guide to assist you in the placement
of wheel blocks (A).
A. Wheel Block
B. Flat Tire
The following information explains
how to use the jack and change
a tire.

Black plate (2,1)GMC Sierra Owner Manual - 2011
i-2 INDEX
AuxiliaryRoof Mounted Lamp . . . . . . . . . . . 6-7
Auxiliary Devices . . . . . . . . . . . . . . 7-34
Axle, Front . . . . . . . . . . . . . . . . . . . . 10-36
Axle, Rear . . . . . . . . . . . . . . . . . . . . 10-37
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-34 Jump Starting . . . . . . . . . . . . . . . 10-98
Load Management . . . . . . . . . . . . . 6-9
Power Protection . . . . . . . . . . . . . 6-10
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 5-41
Blade Replacement, Wiper . . . 10-41
Bluetooth . . . . . . . . . . . . . . . . . . . . . . 7-50
Brake Pedal and AdjustableThrottle . . . . . . . . . . . . . . . . . . . . . . 9-35
Brake System Warning Light . . . 5-27
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-30 Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-68
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 9-69 Brakes (cont.)
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-32
Parking . . . . . . . . . . . . . . . . . . . . . . . 9-69
System Messages . . . . . . . . . . . . 5-42
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Break-In, New Vehicle . . . . . . . . . 9-34
Bulb Replacement . . . . . . . . . . . . 10-48 Center High-MountedStoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . 10-47
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-6
Halogen Bulbs . . . . . . . . . . . . . . 10-44
Headlamp Aiming . . . . . . . . . . . 10-42
Headlamps . . . . . . . . . . . . . . . . . 10-44
License Plate Lamps . . . . . . . 10-48
Pickup-Box Identification and Fender Marker
Lamps . . . . . . . . . . . . . . . . . . . . 10-45
Taillamps . . . . . . . . . . . . . . . . . . . 10-46
Taillamps, Turn Signal, Stoplamps, and
Back-Up Lamps . . . . . . . . . . . 10-46
Buying New Tires . . . . . . . . . . . . . 10-77
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-6
California
Fuel Requirements . . . . . . . . . . . 9-85
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 10-3
Warning . . . . . . . . . . . . . . . . . . . . . . 10-3
Camera, Rear Vision . . . . . . . . . . 9-78
Canadian Vehicle Owners . . . . . . . . iii
Capacities and Specifications . . . . . . . . . . . . . . . . 12-2
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 9-44
Tailgate . . . . . . . . . . . . . . . . . . . . . . . 2-10
Winter Driving . . . . . . . . . . . . . . . . 9-21
Cargo Lamp . . . . . . . . . . . . . . . . . . . . 6-8
Cautions, Danger, and
Warnings . . . . . . . . . . . . . . . . . . . . . . . . iv
CD Player . . . . . . . . . . . . . . . . . . . . . 7-15
CD/DVD Player . . . . . . . . . . . . . . . . 7-22
Center Console Storage . . . . . . . . 4-2