traction control GMC ACADIA 2011 Owner's Manual

Black plate (5,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Introduction v
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer
to the Index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
%:Audio Steering Wheel Controls
or OnStar®
$: Brake System Warning Light
":Charging System
I:Cruise Control
B: Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam
Changer
j: LATCH System Child
Restraints
*: Malfunction Indicator Lamp
::Oil Pressure
g:Outside Power Foldaway
Mirrors
}: Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
_: Tow/Haul Mode
d:Traction Control/StabiliTrak
M:Windshield Washer Fluid

Black plate (3,1)GMC Acadia/Acadia Denali Owner Manual - 2011
In Brief 1-3
A.Air Vents on page 8‑12.
B. Windshield Wiper/Washer on
page 5‑5.
C. Instrument Cluster on
page 5‑12.
D. Head-Up Display (HUD) on
page 5‑33 (If Equipped).
E. Instrument Panel Storage on
page 4‑1.
USB Port (Inside IP Storage).
See Auxiliary Devices on
page 7‑37.
F. Infotainment on page 7‑1.
Navigation/Radio System
(If Equipped). See Navigation
System manual.
G. Exterior Lamp Controls on
page 6‑1.
H. Hood Release. See Hood on
page 10‑5.
I. Instrument Panel Illumination
Control on page 6‑5. J. Data Link Connector (DLC)
(Out of View). See Malfunction
Indicator Lamp on page 5‑18.
K. Cruise Control on page 9‑33.
L. Steering Wheel Adjustment on
page 5‑2.
M. Horn on page 5‑4.
N. Steering Wheel Controls on
page 5‑2.
O. Driver Information Center (DIC) Buttons (If Equipped).
See Driver Information Center
(DIC) (With DIC Buttons) on
page 5‑25 orDriver Information
Center (DIC) (Without DIC
Buttons) on page 5‑30.
P. Dual Automatic Climate Control
System on page 8‑4.
Q. Console Shift Lever (If Equipped). See “Console
Shift Lever” underShifting
Into Park on page 9‑21.
R. Hazard Warning Flashers on
page 6‑3. S.
Cupholders on page 4‑1.
T. Power Outlets on page 5‑9.
U. Rear Window Wiper/Washer on
page 5‑6.
Traction Control System
(TCS) Disable Button.
See StabiliTrak
®System on
page 9‑31.
Tow/Haul Button (If Equipped).
See Tow/Haul Mode on
page 9‑28.
Power Liftgate Button
(If Equipped). See Liftgate on
page 2‑10.
V. Heated and Ventilated
Front Seats on page 3‑9
(If Equipped).
W. Passenger Airbag Status
Indicator on page 5‑16
(If Equipped).
X. Glove Box on page 4‑1.

Black plate (20,1)GMC Acadia/Acadia Denali Owner Manual - 2011
1-20 In Brief
Power Outlets
The vehicle has three 12‐volt
accessory power outlets which
can be used to plug in electrical
equipment, such as a cell phone
or MP3 player.
The power outlets are located:
.On the instrument panel below
the climate controls.
.At the rear of the center floor
console.
.In the rear cargo area.
To use the outlets, remove the
cover.
See Power Outlets on page 5‑9.
Sunroof
The ignition must be in ON/RUN or
ACC/ACCESSORY to operate the
sunroof and power sunshade. See
Retained Accessory Power (RAP)
on page 9‑21.
The switch to operate the front
sunroof is on the headliner above
the rearview mirror.
Vent: Press the front or rear of the
switch to vent or close the sunroof.
Express-open/Express-close:
From the closed position, press
and release the rear or front of
the switch to express-open or
express-close the sunroof.
For more information see Sunroof
on page 2‑22.
Performance and
Maintenance
StabiliTrak®System
The traction control system limits
wheel spin and the StabiliTrak
system assists with directional
control of the vehicle in difficult
driving conditions. Both systems
turn on automatically every time
the vehicle is started.
.To turn off the traction control
part of StabiliTrak, press and
release
5located on the
instrument panel and the
appropriate DIC message
is displayed. See Vehicle
Messages on page 5‑37.
.The StabiliTrak system
remains on.
For more information, see
StabiliTrak
®System on page 9‑31.

Black plate (34,1)GMC Acadia/Acadia Denali Owner Manual - 2011
5-34 Instruments and Controls
The following indicator lights come
on the instrument panel when
activated and also appear on
the HUD:
.Turn Signal Indicators
.High-Beam Indicator Symbol
The HUD temporarily displays
CHECK GAGES and ICE
POSSIBLE when these messages
are on the DIC trip computer.
The HUD also displays the following
messages on vehicles with these
systems, when they are active:
.TRACTION CONTROL ACTIVE
.STABILITRAK ACTIVE
Notice: If you try to use the
HUD image as a parking aid, you
may misjudge the distance and
damage your vehicle. Do not use
the HUD image as a parking aid.
When the HUD is on, the
speedometer reading is continually
displayed. The current radio station or CD track number will display
for a short period of time after
the radio or CD track status
changes. This happens whenever
radio information is changed.
The speedometer size is reduced
when radio, CD information,
warnings, or turn-by-turn navigation
information are displayed on
the HUD.
The HUD control is located to the
right of the steering wheel.
To adjust the HUD image so that
items are properly displayed, do the
following:
1. Adjust the driver's seat to a
comfortable position.
2. Start the engine.
3. Adjust the HUD controls.
Use the following settings to adjust
the HUD.
9 (Off): To turn HUD off, rotate the
dimming knob fully counterclockwise
until the HUD display turns off.
Brightness : Turn the knob
on the HUD control clockwise or
counterclockwise to brighten or
dim the display.
w (Up) : x(Down) : Press the up
or down arrows to center the HUD
image in your view. The HUD image
can only be adjusted up and down,
not side to side.

Black plate (43,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Instruments and Controls 5-43
SERVICE TRACTION
CONTROL
This message displays when there
is a problem with the Traction
Control System (TCS). When this
message is displayed, the system
will not limit wheel spin. Adjust your
driving accordingly. See your dealer
for service. SeeStabiliTrak
®System
on page 9‑31 for more information.
TRACTION CONTROL OFF
This message displays when the
Traction Control System (TCS)
is turned off. Adjust your driving
accordingly. See StabiliTrak
®
System on page 9‑31 for more
information. This message clears
itself after 10 seconds.
TRACTION CONTROL ON
This message displays when the
Traction Control System (TCS) is
turned on. See StabiliTrak
®System
on page 9‑31 for more information.
This message clears itself after
10 seconds.
Airbag System Messages
SERVICE AIR BAG
This message displays if there is a
problem with the airbag system.
Have your dealer inspect the
system for problems. See Airbag
Readiness Light on page 5‑15 and
Airbag System on page 3‑33 for
more information.
Anti-Theft Alarm System
Messages
SERVICE THEFT DETERRENT
SYSTEM
This message displays when there
is a problem with the theft-deterrent
system. The vehicle may or may not
restart so you may want to take the
vehicle to your dealer before turning
off the engine. See Immobilizer
Operation on page 2‑15 for more
information.
THEFT ATTEMPTED
This message displays if the
content theft-deterrent system has
detected a break-in attempt while
you were away from your vehicle.
See Anti-Theft Alarm System on
page 2‑13 for more information.
Service Vehicle Messages
SERVICE A/C
(Air Conditioning)
SYSTEM
This message displays when the
electronic sensors that control
the air conditioning and heating
systems are no longer working.
Have the climate control system
serviced by your dealer if you
notice a drop in heating and air
conditioning efficiency.

Black plate (38,1)GMC Acadia/Acadia Denali Owner Manual - 2011
7-38 Infotainment System
Drivers are encouraged to
set up any auxiliary device
while the vehicle is in P (Park).
SeeDefensive Driving on page 9‑2
for more information on driver
distraction.
To use an auxiliary input device,
connect a 3.5 mm (1/8 in) cable to
the radio's front auxiliary input jack.
O(Power/Volume): Turn clockwise
or counterclockwise to increase
or decrease the volume of the
portable player. Additional volume
adjustments might have to be made
from the portable device if the
volume is not loud or soft enough.
BAND: Press to listen to the radio
when a portable audio device is
playing. The portable audio device
continues playing, so you might
want to stop it or turn it off. CD/AUX (CD/Auxiliary):
Press to
select between CD, or Auxiliary.
.When a CD is in the player
the CD icon and a message
showing the disc and/or track
number displays.
.If an auxiliary input device is not
connected, “No Input Device
Found” displays.
DVD/CD AUX (Auxiliary): Press
to select between DVD, CD,
or Auxiliary.
.If an auxiliary input device is
not connected, “No Aux Input
Device” displays.
.When a disc is in either slot, the
DVD/CD text tab and a message
showing the track or chapter
number displays.
.If an auxiliary input device is not
connected, and a disc is in both
the DVD slot and the CD slot the
DVD/CD AUX button only cycles
between the two sources and
does not indicate “No Aux Input
Device.”
.If a front auxiliary input device is
connected, the DVD/CD AUX
button cycles through all
available options.
If a disc is inserted into top DVD
slot, the rear seat operator can turn
on the video screen and use the
remote control to only navigate
the CD tracks through the remote
control.
See “Using the Auxiliary Input
Jack(s)” later in this section,
or “Audio/Video (A/V) Jacks” under,
Rear Seat Entertainment (RSE)
System on page 7‑39 for more
information.

Black plate (50,1)GMC Acadia/Acadia Denali Owner Manual - 2011
7-50 Infotainment System
Rear Audio
Controller (RAC)
The vehicle may have the Rear
Audio Controller (RAC). Certain
radio functions can be controlled
with RAC.
x w(Next/Previous):Press the
down or up arrows to go to the next
or to the previous radio station
stored as a favorite.
When a CD/DVD is playing, press
the down or up arrows to go to the
next or previous track or chapter.
©SEEK¨: Press the SEEK
arrows to go to the previous or to
the next radio station while in AM or
FM. Press the SEEK arrows to go to
the previous or to the next track or
chapter while sourced to a CD or
DVD slot.
SRCE (Source): Press this
button to switch between the radio,
CD, and if the vehicle has these
features, DVD, front auxiliary, and
rear auxiliary.
>(Mute): Press this button to
silence the system. Press this
button again, or any other radio
button, to turn the sound on.
+ / −
x(Volume): Press the plus or
minus volume buttons to increase or
to decrease the volume.
Phone
Bluetooth
For vehicles equipped with
Bluetooth capability, the system
can interact with many cell phones,
allowing:
.Placement and receipt of calls in
a hands-free mode.
.Sharing of the cell phone’s
address book or contact list
with the vehicle.
To minimize driver distraction,
before driving, and with the vehicle
parked:
.Become familiar with the
features of the cell phone.
Organize the phone book and
contact lists clearly and delete
duplicate or rarely used entries.
If possible, program speed dial
or other shortcuts.

Black plate (4,1)GMC Acadia/Acadia Denali Owner Manual - 2011
9-4 Driving and Operating
If the engine ever stops while
the vehicle is being driven, brake
normally but do not pump the
brakes. If the brakes are pumped,
the pedal could get harder to push
down. If the engine stops, there will
still be some power brake assist but
it will be used when the brake is
applied. Once the power assist is
used up, it can take longer to stop
and the brake pedal will be harder
to push.
Adding non‐dealer accessories
can affect vehicle performance.
SeeAccessories and Modifications
on page 10‑3.Steering
Power Steering
If power steering assist is lost
because the engine stops or
the power steering system is not
functioning, the vehicle can be
steered but it will take more effort.
Variable Effort Steering
The vehicle has a steering system
that continuously adjusts the effort
felt when steering at all vehicle
speeds. It provides ease when
parking, yet a firm, solid feel at
highway speeds.
Steering Tips
It is important to take curves at a
reasonable speed.
Traction in a curve depends on
the condition of the tires and the
road surface, the angle at which the
curve is banked, and vehicle speed.
While in a curve, speed is the one
factor that can be controlled.
If there is a need to reduce speed,
do it before entering the curve, while
the front wheels are straight.
Try to adjust the speed so you can
drive through the curve. Maintain a
reasonable, steady speed. Wait to
accelerate until out of the curve,
and then accelerate gently into
the straightaway.

Black plate (6,1)GMC Acadia/Acadia Denali Owner Manual - 2011
9-6 Driving and Operating
Ease off the accelerator and
then, if there is nothing in the
way, steer so that the vehicle
straddles the edge of the pavement.
Turn the steering wheel 8 to 13 cm
(3 to 5 in), about one-eighth turn,
until the right front tire contacts
the pavement edge. Then turn the
steering wheel to go straight down
the roadway.
Loss of Control
Let us review what driving experts
say about what happens when the
three control systems—brakes,
steering, and acceleration —do not
have enough friction where the tires
meet the road to do what the driver
has asked.
In any emergency, do not give up.
Keep trying to steer and constantly
seek an escape route or area of
less danger.
Skidding
In a skid, a driver can lose control of
the vehicle. Defensive drivers avoid
most skids by taking reasonable
care suited to existing conditions,
and by not overdriving those
conditions. But skids are always
possible.
The three types of skids
correspond to the vehicle's three
control systems. In the braking skid,
the wheels are not rolling. In the
steering or cornering skid, too much
speed or steering in a curve causes
tires to slip and lose cornering force.
And in the acceleration skid, too
much throttle causes the driving
wheels to spin.
If the vehicle starts to slide, ease
your foot off the accelerator pedal
and quickly steer the way you
want the vehicle to go. If you start
steering quickly enough, the vehicle
may straighten out. Always be ready
for a second skid if it occurs. Of course, traction is reduced when
water, snow, ice, gravel, or other
material is on the road. For safety,
slow down and adjust your driving
to these conditions. It is important
to slow down on slippery surfaces
because stopping distance is longer
and vehicle control more limited.
While driving on a surface with
reduced traction, try to avoid
sudden steering, acceleration,
or braking, including reducing
vehicle speed by shifting to a lower
gear. Any sudden changes could
cause the tires to slide. You might
not realize the surface is slippery
until the vehicle is skidding. Learn
to recognize warning clues
—such
as enough water, ice, or packed
snow on the road to make a
mirrored surface —and slow
down when you have any doubt.
Remember: Antilock brakes help
avoid only the braking skid.

Black plate (7,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Driving and Operating 9-7
Driving on Wet Roads
Rain and wet roads can reduce
vehicle traction and affect your
ability to stop and accelerate.
Always drive slower in these types
of driving conditions and avoid
driving through large puddles and
deep‐standing or flowing water.
{WARNING
Wet brakes can cause crashes.
They might not work as well in
a quick stop and could cause
pulling to one side. You could
lose control of the vehicle.
After driving through a large
puddle of water or a car/vehicle
wash, lightly apply the brake
pedal until the brakes work
normally.(Continued)
WARNING (Continued)
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to
drive through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road
is wet enough and you are going
fast enough. When the vehicle is
hydroplaning, it has little or no
contact with the road. There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
.Pass with caution.
.Keep windshield wiping
equipment in good shape.
.Keep the windshield washer fluid
reservoir filled.
.Have good tires with proper
tread depth. See
Tires on
page 10‑38.
.Turn off cruise control.