2009 GMC ACADIA cooling

3. Keep turning the pressure cap
slowly and remove it.
4. Fill the radiator to the base of the
ller neck with the proper
DEX-COOL coolant mixture.
5. When coolant begins to ow out
of the ller neck, reinstall the
pressure cap. Be sure to secure
it tightly.6. Fill the coolant recovery tank to
the FULL COLD mark.
7. Reinstall the cap on the coolant
recovery tank but leave the
radiator pressure cap off.8. Start the engine and let it run
until the upper radiator hose
feels warm. Any time during this
procedure, watch out for the
engine cooling fan(s).
5-20 Service and Appearance Care

9. If the coolant level inside the
radiator ller neck is low, add
more of the proper DEX-COOL
coolant mixture through the
ller neck until the level is back
up to the base of the ller
neck. Replace the pressure cap.
Be sure to secure it tightly.
Notice:If the pressure cap is
not tightly installed, coolant loss
and possible engine damage
may occur. Be sure the cap is
properly and tightly secured.
Engine Overheating
The vehicle has several indicators
to warn of engine overheating.
There is an engine coolant
temperature gage on the instrument
panel cluster. SeeEngine Coolant
Temperature Gage on page 3-40.The vehicle may also display
an ENGINE OVERHEATED
IDLE ENGINE and ENGINE
OVERHEATED STOP ENGINE
message in the Driver Information
Center (DIC). SeeDIC Warnings
and Messages on page 3-56.
You may decide not to lift the hood
when this warning appears, but
instead get service help right away.
SeeRoadside Assistance Program
on page 7-6.
If you do decide 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 the engine without
coolant is not covered by the
warranty.
Notice:If the engine catches re
while driving with no coolant, the
vehicle can be badly damaged.
The costly repairs would not be
covered by the vehicle warranty.
SeeOverheated Engine Protection
Operating Mode on page 5-23for
information on driving to a safe
place in an emergency.
Service and Appearance Care 5-21

Wheel Alignment and
Tire Balance
The tires and wheels on your vehicle
were aligned and balanced carefully
at the factory to give you the longest
tire life and best overall performance.
Adjustments to wheel alignment and
tire balancing will not be necessary
on a regular basis. However, if you
notice unusual tire wear or your
vehicle pulling to one side or the
other, the alignment might need to be
checked. If you notice your vehicle
vibrating when driving on a smooth
road, the tires and wheels might
need to be rebalanced. See your
dealer/retailer for proper diagnosis.
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or corroded.
If wheel nuts keep coming loose, the
wheel, wheel bolts, and wheel nuts
should be replaced. If the wheel
leaks air, replace it (except some
aluminum wheels, which can
sometimes be repaired). See your
dealer/retailer if any of these
conditions exist.
Your dealer/retailer will know the
kind of wheel you need.
Each new wheel should have the
same load-carrying capacity,
diameter, width, offset, and be
mounted the same way as the
one it replaces.
If you need to replace any of your
wheels, wheel bolts, wheel nuts,
or Tire Pressure Monitor System
(TPMS) sensors, replace them only
with new GM original equipment
parts. This way, you will be sure to
have the right wheel, wheel bolts,
wheel nuts, and TPMS sensors for
your vehicle.{CAUTION
Using the wrong replacement
wheels, wheel bolts, or wheel
nuts on your vehicle can be
dangerous. It could affect the
braking and handling of your
vehicle, make your tires lose air
and make you lose control. You
could have a collision in which
you or others could be injured.
Always use the correct wheel,
wheel bolts, and wheel nuts for
replacement.
Notice:The wrong wheel can
also cause problems with bearing
life, brake cooling, speedometer
or odometer calibration, headlamp
aim, bumper height, vehicle
ground clearance, and tire or tire
chain clearance to the body and
chassis.
SeeChanging a Flat Tire on
page 5-69for more information.
Service and Appearance Care 5-53

Fuses Usage
AIRBAG Airbag
AMP Amplier
Fuses Usage
BCK/UP/
STOPBack-up
Lamp/Stoplamp
BCMBody Control
Module
CNSTR/
VENTCanister Vent
CTSY Courtesy
DR/LCK Door Locks
DRLDaytime Running
Lamps
DSPLY Display
FRT/WSWFront Windshield
Washer
HTD/COOL
SEATHeated/Cooling
Seats
HVACHeating, Ventilation
and Air Conditioning
IADV/
PWR/LEDInadvertent
Power LED
INFOTMNT InfotainmentFuses Usage
LT/TRN/SIGDriver Side Turn
Signal
MSMMemory Seat
Module
PWR
MODEPower Mode
PWR/MIR Power Mirrors
RDO Radio
REAR WPR Rear Wiper
RT/TRN/SIGPassenger Side
Turn Signal
SPARE Spare
SPARE Spare
STR/WHL/
ILLUMSteering Wheel
Illumination
Fuse Side
Service and Appearance Care 5-91

FusesUsage
A/C
CLUTCH Air Conditioning
Clutch
ABS MTR Antilock Braking
System (ABS) Motor
AFS Adaptive Forward
Lighting System
AIRBAG Airbag SystemFuses Usage
AUX
POWER Auxiliary Power
AUX VAC PUMP Auxiliary Vacuum
Pump
AWD All-Wheel-Drive
System
BATT 1 Battery 1
Fuses Usage
BATT 2 Battery 2
BATT 3 Battery 3
ECM Engine Control
Module
ECM 1 Engine Control
Module 1
EMISSION 1 Emission 1
EMISSION 2 Emission 2 EVEN
COILS Even Injector Coils
FAN 1 Cooling Fan 1
FAN 2 Cooling Fan 2
FOG LAMP Fog Lamps
FSCM Fuel System Control
Module
HORN Horn
HTD WASH Heated Windshield
Washer Fluid
HTD MIR Heated Outside
Rearview Mirror
Service and Appearance Care 5-93

Relays Usage
A/C
CMPRSR
CLTCHAir Conditioning
Compressor Clutch
AUX VAC
PUMPAuxiliary Vacuum
Pump
CRNK Switched Power
FAN 1 Cooling Fan 1
FAN 2 Cooling Fan 2
FAN 3 Cooling Fan 3
FOG LAMP Fog Lamps
HI BEAMHigh-Beam
Headlamps
HID/LO
BEAMHigh Intensity
Discharge (HID)
Low-Beam
Headlamps
HORN Horn
IGN Ignition MainRelays Usage
LT TRLR
STOP/TRNTrailer Left
Stoplamp and Turn
Signal Lamp
PRK LAMP Park Lamp
PWR/TRN Powertrain
RR DEFOGRear Window
Defogger
RT TRLR
STOP/TRNTrailer Right
Stoplamp and Turn
Signal Lamp
Stop Lamps
(China
Only)Stop Lamps
(China Only)
TRLR
BCK/UPTrailer Back-up
Lamps
WPR Windshield Wiper
WPR HIWindshield Wiper
High Speed
Service and Appearance Care 5-95

Capacities and Specications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricants on page 6-12 for more information.
Application Capacities
English Metric
Air Conditioning Refrigerant R134a For the air conditioning system refrigerant charge
amount, see the refrigerant caution label located
under the hood. See your dealer/retailer for more information.
Cooling System 11.4 qt 10.8 L
Engine Oil with Filter 5.5 qt 5.2 L
Fuel Tank 22.0 gal 83.3 L
Transmission Fluid* 5.3 qt 5.0 L
Wheel Nut Torque 140 lb ft 190 Y
*Transmission uid capacity is approximate. See Automatic Transmission Fluid on page 5-16for information on
checking uid level.
All capacities are approximate. When adding, be sure to ll to the approximate level, as recommended in this
manual. Recheck uid level after lling.
Engine Specications
Engine VIN CodeTransmission Spark Plug Gap
3.6L V6 Engine DAutomatic 0.043 in (1.10 mm)
5-96 Service and Appearance Care

Scheduled Maintenance
ServiceMaintenanceIMaintenance II
Change engine oil and lter. See Engine Oil on page 5-11. Reset oil life system.
See Engine Oil Life System on page 5-13 .An Emission Control Service. ••
Visually check for any leaks or damage. See footnote (g). ••
Inspect engine air cleaner lter. If necessary, replace lter. See Engine Air
Cleaner/Filter on page 5-15 .See footnote (l). •
Rotate tires and check ination pressures and wear. See Tire Inspection and
Rotation on page 5-47 and “Tire Wear Inspection” in At Least Once a Month on
page 6-9. ••
Inspect brake system. See footnote (a). ••
Check engine coolant and windshield washer uid levels and add uid as
needed. ••
Perform any needed additional services. See “Additional Required Services” in
this section. ••
Inspect suspension and steering components. See footnote (b). •
Inspect engine cooling system. See footnote (c). •
Inspect wiper blades. See footnote (d). •
Inspect restraint system components. See footnote (e). •
Lubricate body components. See footnote (f). •
Inspect throttle system. See footnote (j). •
Maintenance Schedule 6-5