2011 GMC ACADIA radiator cap

Black plate (7,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Vehicle Care 10-7
A. Radiator Pressure Cap.See Cooling System on
page 10‑15.
B. Engine Coolant Recovery Cap. See Cooling System on
page 10‑15.
C. Remote Negative (−) Terminal. See Jump Starting on
page 10‑83.
D. Engine Compartment Fuse
Block on page 10‑33.
E. Remote Positive (+) Terminal. See Jump Starting on
page 10‑83.
F. Power Steering Reservoir and Cap (under engine cover).
See Power Steering Fluid on
page 10‑22.
G. Engine Oil Fill Cap. See “When
to Add Engine Oil” under
Engine Oil on page 10‑8. H.
Engine Cover on page 10‑7.
I. Engine Oil Dipstick. See “Checking Engine Oil”
under Engine Oil on page 10‑8.
J. Automatic Transmission Fluid Dipstick. See “Checking the
Fluid Level” underAutomatic
Transmission Fluid on
page 10‑13.
K. Brake Master Cylinder Reservoir. See “Brake Fluid”
under Brakes on page 10‑24.
L. Engine Air Cleaner/Filter on
page 10‑13.
M. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid on
page 10‑23.Engine Cover
A. Oil Fill Cap
B. Engine Cover
To remove:
1. Remove the oil fill cap (A).
2. Raise the engine cover (B) to release from the retainers.
3. Lift and remove the engine cover.
4. Reverse Steps 1 through 3 to reinstall engine cover.

Black plate (15,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Vehicle Care 10-15
Cooling System
The cooling system allows the
engine to maintain the correct
working temperature.
A. Engine Coolant Recovery Tank
B. Radiator Pressure Cap
C. Engine Cooling Fans(Out of View)
{WARNING
An electric engine cooling fan
under the hood can start up
even when the engine is not
running and can cause injury.
Keep hands, clothing, and tools
away from any underhood
electric fan.
{WARNING
Heater and radiator hoses, and
other engine parts, can be very
hot. Do not touch them. If you do,
you can be burned.
Do not run the engine if there
is a leak. If you run the engine, it
could lose all coolant. That could
cause an engine fire, and you
could be burned. Get any leak
fixed before you drive the vehicle. Notice:
Using coolant other than
DEX-COOL
®can cause premature
engine, heater core, or radiator
corrosion. In addition, the engine
coolant could require changing
sooner, at 50 000 km (30,000 mi)
or 24 months, whichever occurs
first. Any repairs would not
be covered by the vehicle
warranty. Always use DEX-COOL
(silicate-free) coolant in the
vehicle.
Engine Coolant
The cooling system in the vehicle
is filled with DEX-COOL®engine
coolant. The coolant is designed to
remain in the vehicle for 5 years or
240 000 km (150,000 mi), whichever
occurs first.
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
see Engine Overheating on
page 10‑19.

Black plate (18,1)GMC Acadia/Acadia Denali Owner Manual - 2011
10-18 Vehicle Care
How to Add Coolant to the
Radiator
{WARNING
An electric engine cooling fan
under the hood can start up
even when the engine is not
running and can cause injury.
Keep hands, clothing, and tools
away from any underhood
electric fan.
{WARNING
Steam and scalding liquids
from a hot cooling system can
blow out and burn you badly.
They are under pressure, and if
you turn the surge tank pressure
cap—even a little —they can
come out at high speed. Never
turn the cap when the cooling
system, including the surge tank
(Continued)
WARNING (Continued)
pressure cap, is hot. Wait for the
cooling system and surge tank
pressure cap to cool if you ever
have to turn the pressure cap.
If coolant is needed, add the proper
mixture directly to the radiator, but
be sure the cooling system is cool
before this is done.
1. Detach fasteners and lift off the panel that covers the
radiator cap.
2. Remove the radiator pressure
cap when the cooling system,
including the upper radiator
hose, is no longer hot.
Turn the pressure cap slowly
counterclockwise about one
full turn.
If a hiss is heard, wait for that
to stop. A hiss means there is
still some pressure left in the
system.
3. Keep turning the pressure cap slowly and remove it.
4. Fill the radiator to the base of the filler neck with the proper
DEX-COOL coolant mixture.

Black plate (19,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Vehicle Care 10-19
5. Fill the coolant recovery tank tothe FULL COLD mark.
6. Reinstall the cap on the coolant recovery tank but leave the
radiator pressure cap off.
7. 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 fans. 8. If the coolant level inside the
radiator filler neck is low, add
more of the proper DEX-COOL
coolant mixture through the filler
neck until the level is back up to
the base of the filler neck.
9. Replace the pressure cap. Be sure to secure it tightly.
At any time during this
procedure if coolant begins
to flow out of the filler neck,
reinstall the pressure cap.
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 gauge on the
instrument panel cluster.
See Engine Coolant Temperature
Gauge on page 5‑14.
The vehicle may also display
an ENGINE OVERHEATED
IDLE ENGINE and ENGINE
OVERHEATED STOP ENGINE
message in the Driver Information
Center (DIC). See Engine Cooling
System Messages on page 5‑39.
You may decide not to lift the hood
when this warning appears, but
instead get service help right away.
See Roadside Assistance Program
(U.S. and Canada) on page 13‑8
or Roadside Assistance Program
(Mexico) on page 13‑10.