Engine Compartment Overview
When you lift the hood, here is what you will see:
5-10 Service and Appearance Care
A. Radiator Pressure Cap. See
Cooling System on page 5-17.
B. Engine Coolant Recovery Cap.
SeeCooling System on
page 5-17.
C. Remote Negative (−) Terminal.
SeeJump Starting on page 5-29.
D.Underhood Fuse Block on
page 5-88.
E. Remote Positive (+) Terminal.
SeeJump Starting on page 5-29.
F.Power Steering Fluid on
page 5-24.
G. Engine Oil Fill Cap. See “When
to Add Engine Oil” underEngine
Oil on page 5-11.H. Engine Oil Dipstick. See
“Checking Engine Oil” under
Engine Oil on page 5-11.
I. Automatic Transmission
Fluid Dipstick. See “Checking
the Fluid Level” underAutomatic
Transmission Fluid on page 5-16.
J. Brake Master Cylinder Reservoir.
See “Brake Fluid” underBrakes
on page 5-25.
K.Engine Air Cleaner/Filter on
page 5-15.
L. Windshield Washer Fluid
Reservoir. See “Adding Washer
Fluid” underWindshield
Washer Fluid on page 5-24.Engine Oil
Checking Engine Oil
It is a good idea to check the engine
oil level at each fuel ll. In order to
get an accurate reading, the oil must
be warm and the vehicle must be on
level ground.
The engine oil dipstick handle
is a yellow loop. SeeEngine
Compartment Overview on
page 5-10for the location of the
engine oil dipstick.
1. Turn off the engine and give the
oil several minutes to drain back
into the oil pan. If this is not
done, the oil dipstick might not
show the actual level.
2. Pull out the dipstick and clean it
with a paper towel or cloth, then
push it back in all the way.
Remove it again, keeping the tip
down, and check the level.
Service and Appearance Care 5-11
When to Add Engine Oil
If the oil is below the cross-hatched
area at the tip of the dipstick,
add at least one quart/liter of the
recommended oil. This section
explains what kind of oil to use.
For engine oil crankcase capacity,
seeCapacities and Specifications on
page 5-92.
Notice:Do not add too much oil.
If the engine has so much oil
that the oil level gets above the
cross-hatched area that shows
the proper operating range,
the engine could be damaged.SeeEngine Compartment Overview
on page 5-10for the location of
the engine oil ll cap.
Add enough oil to put the level
somewhere in the proper operating
range in the cross-hatched area.
Push the dipstick all the way back
in when through.
What Kind of Engine Oil to Use
Look for three things:
5-12 Service and Appearance Care
GM6094M
Use only an oil that meets GM
Standard GM6094M.
SAE 5W-30
SAE 5W-30 is best for the
vehicle. These numbers on an
oil container show its viscosity,
or thickness. Do not use other
viscosity oils such as
SAE 20W-50.
American Petroleum Institute
(API) starburst symbol
Oils meeting these requirements
should have the starburst
symbol on the container. This
symbol indicates that the oil has
been certi ed by the American
Petroleum Institute (API).Notice:Use only engine
oil identi ed as meeting GM
Standard GM6094M and showing
the American Petroleum Institute
Certi ed For Gasoline Engines
starburst symbol. Failure to use
the recommended oil can result in
engine damage not covered by the
vehicle warranty.
Cold Temperature Operation
If in an area of extreme cold,
where the temperature falls
below−20°F (−29°C), use either
an SAE 5W-30 synthetic oil or an
SAE 0W-30 engine oil. Both provide
easier cold starting for the engine at
extremely low temperatures. Always
use an oil that meets the required
speci cation, GM6094M. See “What
Kind of Engine Oil to Use” for more
information.
Engine Oil Additives / Engine
Oil Flushes
Do not add anything to the oil.
The recommended oils with the
starburst symbol that meet GM
Standard GM6094M are all that is
needed for good performance and
engine protection.
Engine oil system ushes are not
recommended and could cause
engine damage not covered by the
vehicle warranty.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and lter. This is based
on engine revolutions and engine
temperature, and not on mileage.
Based on driving conditions, the
mileage at which an oil change is
indicated can vary considerably. For
the oil life system to work properly,
the system must be reset every time
the oil is changed.
Service and Appearance Care 5-13
When the system has calculated
that oil life has been diminished,
it indicates that an oil change is
necessary. A CHANGE ENGINE OIL
SOON message comes on. Change
the oil as soon as possible within
the next 600 miles (1 000 km). It is
possible that, if driving under the best
conditions, the oil life system might
not indicate that an oil change is
necessary for over a year. However,
the engine oil and lter must be
changed at least once a year and at
this time the system must be reset.
Your dealer/retailer has trained
service people who will perform this
work using genuine parts and reset
the system. It is also important to
check the oil regularly and keep it at
the proper level.If the system is ever reset
accidentally, the oil must be
changed at 3,000 miles (5 000 km)
since the last oil change. Remember
to reset the oil life system whenever
the oil is changed.
How to Reset the Engine Oil
Life System
The Engine Oil Life System
calculates when to change the
engine oil and lter based on vehicle
use. Whenever the oil is changed,
reset the system so it can calculate
when the next oil change is required.
If a situation occurs where the oil
is changed prior to a CHANGE
ENGINE OIL SOON message being
turned on, reset the system.If the vehicle does not have Driver
Information Center (DIC) buttons:
1. Turn the ignition to ON/RUN, with
the engine off. The vehicle must
be in P (Park) to access this
display. Press the trip odometer
reset stem until OIL LIFE
REMAINING displays.
2. Press and hold the trip
odometer reset stem until OIL
LIFE REMAINING shows 100%.
Three chimes sound and the
CHANGE ENGINE OIL SOON
message goes off.
3. Turn the key to LOCK/OFF.
If the CHANGE ENGINE OIL
SOON message comes back on
when the vehicle is started, the
engine oil life system has not
reset. Repeat the procedure.
5-14 Service and Appearance Care
If the vehicle has Driver Information
Center (DIC) buttons:
1. Turn the ignition to ON/RUN,
with the engine off.
2. Press the vehicle information
button until OIL LIFE
REMAINING displays.
3. Press and hold the set/reset
button until 100% is displayed.
Three chimes sound and
the CHANGE ENGINE OIL
SOON message goes off.
4. Turn the key to LOCK/OFF.
If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not reset. Repeat the
procedure.What to Do with Used Oil
Used engine oil contains certain
elements that can be unhealthy for
your skin and could even cause
cancer. Do not let used oil stay on
your skin for very long. Clean your
skin and nails with soap and water,
or a good hand cleaner. Wash or
properly dispose of clothing or rags
containing used engine oil. See the
manufacturer’s warnings about the
use and disposal of oil products.
Used oil can be a threat to the
environment. If you change your own
oil, be sure to drain all the oil from the
lter before disposal. Never dispose
of oil by putting it in the trash, pouring
it on the ground, into sewers, or into
streams or bodies of water. Recycle
it by taking it to a place that collects
used oil.
Engine Air Cleaner/Filter
When to Inspect the Engine
Air Cleaner/Filter
Inspect the air cleaner/ lter at the
MaintenanceIIintervals and replace
it at the rst oil change after each
50,000 mile (80 000 km) interval.
SeeScheduled Maintenance on
page 6-3for more information. If you
are driving in dusty/dirty conditions,
inspect the lter at each engine oil
change.
SeeEngine Compartment Overview
on page 5-10for the location of
the engine air cleaner/ lter.
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/ lter,
remove the lter from the vehicle and
lightly shake the lter (away from
vehicle) to release loose dust and
dirt. If the lter remains caked with
dirt, a new lter is required.
Service and Appearance Care 5-15