2012 GMC ACADIA exhaust

Black plate (51,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Driving and Operating 9-51
If a weight-carrying hitch or a
weight-distributing hitch is being
used, the trailer tongue (A) should
weigh 10‐15 percent of the total
loaded trailer weight (B).
After loading the trailer, weigh the
trailer and then the tongue,
separately, to see if the weights are
proper. If they are not, adjustments
might be made by moving some
items around in the trailer.
Trailering may be limited by the
vehicle's ability to carry tongue
weight. Tongue weight cannot cause
the vehicle to exceed the GVWR
(Gross Vehicle Weight Rating) orthe RGAWR (Rear Gross Axle
Weight Rating). The effect of
additional weight may reduce the
trailering capacity more than the
total of the additional weight.
It is important that the vehicle
does not exceed any of its
ratings
—GCWR, GVWR, RGAWR,
Maximum Trailer Rating or Tongue
Weight. The only way to be sure it is
not exceeding any of these ratings
is to weigh the vehicle and trailer.
Total Weight on the
Vehicle's Tires
Inflate the vehicle's tires to the
upper limit for cold tires. These
numbers can be found on the
Certification label or see Vehicle
Load Limits on page 9‑10 for more
information. Do not go over the
GVW limit for the vehicle, or the
GAWR, including the weight of the
trailer tongue. If using a weight
distributing hitch, do not go over the
rear axle limit before applying the
weight distribution spring bars.
Towing Equipment
Hitches
It is important to have the correct
hitch equipment. Crosswinds, large
trucks going by, and rough roads
are a few reasons why the right
hitch is needed.
.The rear bumper on the vehicle
is not intended for hitches.
Do not attach rental hitches or
other bumper-type hitches to it.
Use only a frame-mounted
hitch that does not attach to the
bumper.
.Will any holes be made in the
body of the vehicle when the
trailer hitch is installed? If so,
then be sure to seal the holes
when the hitch is removed. If the
holes are not sealed, dirt, water,
and deadly carbon monoxide
(CO) from the exhaust may get
into the vehicle. See Engine
Exhaust on page 9‑22.

Black plate (3,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Vehicle Care 10-3
California Proposition
65 Warning
Most motor vehicles, including this
one, contain and/or emit chemicals
known to the State of California to
cause cancer and birth defects or
other reproductive harm. Engine
exhaust, many parts and systems,
many fluids, and some component
wear by-products contain and/or
emit these chemicals.
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, safety belt pretensioners,
and lithium batteries contained in
Remote Keyless Entry transmitters,
may contain perchlorate materials.
Special handling may be necessary.
For additional information, see
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and
Modifications
Adding non‐dealer accessories or
making modifications to the vehicle
can affect vehicle performance and
safety, including such things as
airbags, braking, stability, ride and
handling, emissions systems,
aerodynamics, durability, and
electronic systems like antilock
brakes, traction control, and stability
control. These accessories or
modifications could even cause
malfunction or damage not covered
by the vehicle warranty.Damage to vehicle components
resulting from modifications or the
installation or use of non‐GM
certified parts, including control
module or software modifications, is
not covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle
using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle on
page 3‑36.

Black plate (60,1)GMC Acadia/Acadia Denali Owner Manual - 2012
10-60 Vehicle Care
Tire Sealant and
Compressor Kit
{WARNING
Idling a vehicle in an enclosed
area with poor ventilation is
dangerous. Engine exhaust may
enter the vehicle. Engine exhaust
contains carbon monoxide (CO)
which cannot be seen or smelled.
It can cause unconsciousness
and even death. Never run the
engine in an enclosed area
that has no fresh air ventilation.
For more information, seeEngine
Exhaust on page 9‑22.
{WARNING
Overinflating a tire could cause
the tire to rupture and you or
others could be injured. Be sure
to read and follow the tire
sealant and compressor kit
instructions and inflate the tire
to its recommended pressure.
Do not exceed the recommended
pressure.
{WARNING
Storing the tire sealant and
compressor kit or other
equipment in the passenger
compartment of the vehicle could
cause injury. In a sudden stop or
collision, loose equipment could
strike someone. Store the tire
sealant and compressor kit in its
original location. If this vehicle has a tire sealant
and compressor kit, there may not
be a spare tire and tire changing
equipment, and on some vehicles
there may not be a place to store
a tire.
The tire sealant and compressor
can be used to temporarily seal
punctures up to 6 mm (¼ in) in the
tread area of the tire. It can also be
used to inflate an underinflated tire.
If the tire has been separated from
the wheel, has damaged sidewalls,
or has a large puncture, the tire is
too severely damaged for the tire
sealant and compressor kit to be
effective. See
Roadside Assistance
Program (U.S. and Canada) on
page 13‑8 orRoadside Assistance
Program (Mexico) on page 13‑10.
Read and follow all of the tire
sealant and compressor kit
instructions.

Black plate (4,1)GMC Acadia/Acadia Denali Owner Manual - 2012
11-4 Service and Maintenance
.Visually inspect windshield wiper
blades for wear, cracking,
or contamination. SeeExterior
Care on page 10‑86. Replace
worn or damaged wiper blades.
See Wiper Blade Replacement
on page 10‑28.
.Check tire inflation pressures.
See Tire Pressure on
page 10‑44.
.Inspect tire wear. See Tire
Inspection on page 10‑50.
.Visually check for fluid leaks.
.Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter on
page 10‑12.
.Inspect brake system.
.Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care on
page 10‑86.
.Check restraint system
components. See Safety
System Check on page 3‑23.
.Visually inspect fuel system for
damage or leaks.
.Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
.Lubricate body components.
See Exterior Care on
page 10‑86.
.Check starter switch.
See Starter Switch Check on
page 10‑26.
.Check automatic transmission
shift lock control function.
See Automatic Transmission
Shift Lock Control Function
Check on page 10‑26.
.Check ignition transmission lock.
See Ignition Transmission Lock
Check on page 10‑27.
.Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check on
page 10‑27.
.Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
.Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. See your
dealer if service is required.
.Check tire sealant expiration
date, if equipped. See Tire
Sealant and Compressor Kit on
page 10‑60.
.Inspect sunroof track and seal,
if equipped. See Sunroof on
page 2‑23.

Black plate (2,1)GMC Acadia/Acadia Denali Owner Manual - 2012
i-2 INDEX
Automatic TransmissionManual Mode . . . . . . . . . . . . . . . . . 9-25
Shift Lock Control
Function Check . . . . . . . . . . . 10-26
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . . 7-36
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-25Jump Starting . . . . . . . . . . . . . . . 10-78
Load Management . . . . . . . . . . . . . 6-7
Power Protection . . . . . . . . . . . . . . 6-8
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 5-37
Blade Replacement, Wiper . . . 10-28
Blind Spot Mirrors . . . . . . . . . . . . . 2-18
Bluetooth . . . . . . . . . . . . . . . . . . . . . . 7-49
Brake System Warning Light . . . . . . . . 5-21
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-22 Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-27
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 9-29
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-24
Parking . . . . . . . . . . . . . . . . . . . . . . . 9-28
System Messages . . . . . . . . . . . . 5-38 Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Break-In, New Vehicle . . . . . . . . . 9-15
Bulb Replacement . . . . . . . . . . . . 10-29
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-5
Headlamp Aiming . . . . . . . . . . . 10-28
Headlamps . . . . . . . . . . . . . . . . . 10-29
License Plate Lamps . . . . . . . 10-29
Buying New Tires . . . . . . . . . . . . . 10-52C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-6
California Fuel Requirements . . . . . . . . . . . 9-40
Perchlorate Materials
Requirements . . . . . . . . . . . . . . . 10-3
Warning . . . . . . . . . . . . . . . . . . . . . . 10-3
Camera, Rear Vision . . . . . . . . . . 9-35
Canadian Vehicle Owners . . . . . . . . iii
Capacities and Specifications . . . . . . . . . . . . . . . . 12-2
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 9-22
Liftgate . . . . . . . . . . . . . . . . . . . . . . . 2-10
Winter Driving . . . . . . . . . . . . . . . . . 9-8 Cargo
Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Management System . . . . . . . . . . 4-4
Tie-Downs . . . . . . . . . . . . . . . . . . . . . 4-4
Cautions, Danger, and Warnings . . . . . . . . . . . . . . . . . . . . . . . . iv
CD Player . . . . . . . . . . . . . . . . . . . . . 7-13
CD/DVD Player . . . . . . . . . . . . . . . . 7-15
Center Console Storage . . . . . . . . 4-2
Chains, Tire . . . . . . . . . . . . . . . . . . 10-57
Charging System Light . . . . . . . . 5-18
Check
Engine Light . . . . . . . . . . . . . . . . . . 5-18
IgnitionTransmission Lock . . . . . . . . 10-27
Child Restraints
Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . . 3-40
Lower Anchors and Tethers for Children . . . . . . . . . 3-46
Older Children . . . . . . . . . . . . . . . . 3-38
Securing . . . . . . . . . . . . . . . . 3-54, 3-56
Systems . . . . . . . . . . . . . . . . . . . . . . 3-42
Circuit Breakers . . . . . . . . . . . . . . 10-31

Black plate (4,1)GMC Acadia/Acadia Denali Owner Manual - 2012
i-4 INDEX
Drive SystemsAll-Wheel Drive . . . . . . . 9-27, 10-26
Driver Information Center (DIC) . . . . . . . . . . . 5-25, 5-30
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 9-45
Defensive . . . . . . . . . . . . . . . . . . . . . . 9-3
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
For Better Fuel Economy . . . . . 1-24
Highway Hypnosis . . . . . . . . . . . . . 9-7
Hill and Mountain Roads . . . . . . . 9-7
If the Vehicle is Stuck . . . . . . . . . 9-10
Loss of Control . . . . . . . . . . . . . . . . 9-5
Off-Road Recovery . . . . . . . . . . . . 9-5
Vehicle Load Limits . . . . . . . . . . . 9-10
Wet Roads . . . . . . . . . . . . . . . . . . . . 9-6
Winter . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 8-4
DVD
Rear Seat EntertainmentSystem . . . . . . . . . . . . . . . . . . . . . . 7-38
DVD/CD Player . . . . . . . . . . . . . . . . 7-15E
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . . . 9-53
Electrical System Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-31
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . 10-31
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-34
Overload . . . . . . . . . . . . . . . . . . . 10-30
Emergency, OnStar
®. . . . . . . . . . 14-2
Engine Air Cleaner/Filter . . . . . . . . . . . 10-12
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 5-18
Compartment Overview . . . . . . . 10-6
Coolant . . . . . . . . . . . . . . . . . . . . . 10-14
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 5-14
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 5-23
Cooling System . . . . . . . . . . . . . 10-14
Cooling System Messages . . . 5-39
Cover . . . . . . . . . . . . . . . . . . . . . . . . . 10-8
Drive Belt Routing . . . . . . . . . . . . 12-3 Engine (cont'd)
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-22
Heater . . . . . . . . . . . . . . . . . . . . . . . . 9-19
Oil Life System . . . . . . . . . . . . . 10-10
Oil Messages . . . . . . . . . . . . . . . . . 5-40
Overheated Protection
Operating Mode . . . . . . . . . . . 10-20
Overheating . . . . . . . . . . . . . . . . 10-18
Power Messages . . . . . . . . . . . . . 5-40
Pressure Light . . . . . . . . . . . . . . . . 5-24
Running While Parked . . . . . . . . 9-23
Starting . . . . . . . . . . . . . . . . . . . . . . . 9-18
Entry Lighting . . . . . . . . . . . . . . . . . . . 6-6
Equipment, Towing . . . . . . . . . . . . 9-51
Event Data Recorders . . . . . . . . 13-21
Extender, Safety Belt . . . . . . . . . . 3-22
Exterior Lamp Controls . . . . . . . . . 6-1
F
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Filter, Engine Air Cleaner . . . . . . . . . 10-12
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-2
Flashers, Hazard Warning . . . . . . 6-4