In Brief 1-19
Engine Oil Life System
The engine oil life system calculates
engine oil life based on vehicle use
and turns on the change engine oil
light when it is time to change the
engine oil and filter. The oil life
system should be reset to 100%
only following an oil change.
Resetting the Oil Life System
1. Press the DIC vehicleinformation button to display OIL
LIFE REMAINING on the DIC.
2. Press the DIC Set/Reset button for during 5 seconds to reset the
oil life at 100%.
Be careful not to reset the oil life
display accidentally at any time
other than after the oil is
changed. It cannot be reset
accurately until the next oil
change. The oil life system can also be reset
as follows:
1. Turn the ignition key to ON/RUN
with the engine off.
2. Fully press and release the accelerator pedal three times
within five seconds.
If the change engine oil light is
not on, the system is reset.
See Engine Oil Life System
on
page 10‑10.
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.Avoid fast starts and accelerate
smoothly.
.Brake gradually and avoid
abrupt stops.
.Avoid idling the engine for long
periods of time.
.When road and weather
conditions are appropriate, use
cruise control, if equipped.
.Always follow posted speed
limits or drive more slowly when
conditions require.
.Keep vehicle tires properly
inflated.
.Combine several trips into a
single trip.
.Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
.Follow recommended scheduled
maintenance.
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Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-2
California Perchlorate Materials Requirements . . . . 10-3
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-4
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-6
Engine Oil . . . . . . . . . . . . . . . . . . . 10-8
Engine Oil Life System . . . . . 10-10
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-12
Engine Air Cleaner/Filter . . . . 10-12
Cooling System . . . . . . . . . . . . 10-14
Engine Coolant . . . . . . . . . . . . . 10-15
Engine Overheating . . . . . . . . 10-20
Power Steering Fluid . . . . . . . 10-21
Washer Fluid . . . . . . . . . . . . . . . 10-22 Brakes . . . . . . . . . . . . . . . . . . . . . 10-23
Brake Fluid . . . . . . . . . . . . . . . . . 10-24
Battery . . . . . . . . . . . . . . . . . . . . . 10-25
All-Wheel Drive . . . . . . . . . . . . . 10-26
Starter Switch Check . . . . . . . 10-27
Automatic Transmission
Shift Lock Control System
Check . . . . . . . . . . . . . . . . . . . . . 10-28
Ignition Transmission Lock Check . . . . . . . . . . . . . . 10-28
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-29
Wiper Blade Replacement . . . . . . . . . . . . . . 10-29
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-30
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-33
Halogen Bulbs . . . . . . . . . . . . . . 10-33
Headlamps . . . . . . . . . . . . . . . . . 10-33
Front Turn Signal andParking Lamps . . . . . . . . . . . . 10-34
Taillamps, Turn Signal, Stoplamps, andBack-Up Lamps . . . . . . . . . . 10-35
License Plate Lamp . . . . . . . . 10-36
Replacement Bulbs . . . . . . . . . 10-36
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-37
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-37
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . 10-38
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-40
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-43
Tire Sidewall Labeling . . . . . . 10-44
Tire Designations . . . . . . . . . . . 10-46
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-47
Tire Pressure . . . . . . . . . . . . . . . 10-50
Tire Pressure for High-Speed Operation . . . . 10-52
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . 10-52
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . 10-54
Tire Inspection . . . . . . . . . . . . . . 10-57
Tire Rotation . . . . . . . . . . . . . . . 10-57
When It Is Time for New Tires . . . . . . . . . . . . . . . . 10-58
Buying New Tires . . . . . . . . . . . 10-59
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10-6 Vehicle Care
Engine Compartment Overview
2.4L L4 Engine
A. SeeEngine Air Cleaner/Filteron
page 10‑12.
B. Electric Engine Cooling Fan (Out of View). See Cooling
System
on page 10‑14. C. Engine Oil Dipstick (Out of
View). See “Checking Engine
Oil” under Engine Oil
on
page 10‑8. D. Engine Oil Fill Cap (Out of
View). See “When to Add
Engine Oil” underEngine Oil
on
page 10‑8.
E. Brake Fluid Reservoir. See Brakes on page 10‑23.
F. Engine Coolant Surge Tank. See “Checking Coolant” under
Engine Coolant on page 10‑15.
G. Remote Positive (+) Terminal. See Jump Starting
on
page 10‑74.
H. See Engine Compartment Fuse
Block on page 10‑38.
I. See Battery on page 10‑25.
J. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid
on
page 10‑22.
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Vehicle Care 10-7
3.5L V6 Engine (3.6L V6 Engine similar)
A. SeeEngine Air Cleaner/Filteron
page 10‑12.
B. Power Steering Fluid Reservoir (Out of View). See Power
Steering Fluid
on page 10‑21. C. Electric Engine Cooling Fan
(Out of View). See Cooling
System
on page 10‑14.
D. Engine Oil Fill Cap. See “When
to Add Engine Oil” underEngine
Oil on page 10‑8. E. Engine Oil Dipstick (Out of
View). See “Checking Engine
Oil” under Engine Oil
on
page 10‑8.
F. Automatic Transmission Fluid Dipstick (Out of View). See
“Checking the Fluid Level” under
Automatic Transmission Fluid
on
page 10‑12.
G. Brake Fluid Reservoir (Out of View). See Brakes
on
page 10‑23.
H. Engine Coolant Recovery Tank. See Cooling System
on
page 10‑14.
I. Remote Positive (+) Terminal. See Jump Starting
on
page 10‑74.
J. See Engine Compartment Fuse
Block on page 10‑38.
K. See Battery on page 10‑25.
L. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid
on
page 10‑22.
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10-10 Vehicle Care
Engine Oil Additives / Engine
Oil Flushes
Do not add anything to the oil.
The recommended oils with the
starburst symbol that meet GM
standards are all that is needed for
good performance and engine
protection.
Engine oil system flushes 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 filter. 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.
When the system has calculated
that oil life has been diminished,
it indicates that an oil change is
necessary. A change engine oil light
comes on. See
Change Engine Oil
Light
on page 5‑22. Change the oil
as soon as possible within the next
1 000 km (600 miles). 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 filter 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 5 000 km (3,000 miles)
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 filter 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 message being
turned on, reset the system.
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Vehicle Care 10-11
After changing the engine oil, reset
the system:
1. Press the DIC vehicleinformation button to display OIL
LIFE REMAINING on the DIC.
See Driver Information Center
(DIC)
on page 5‑25and Engine
Oil Messages on page 5‑33.
2. Press the DIC Set/Reset button for during 5 seconds to reset the
oil life at 100%.
Be careful not to reset the oil life
display accidentally at any time
other than after the oil is
changed. It cannot be reset
accurately until the next oil
change. The oil life system can also be reset
as follows:
1. Turn the ignition key to ON/RUN
with the engine off.
2. Fully press and release the accelerator pedal three times
within five seconds.
If the change engine oil light is
not on, the system is reset.
If the change engine oil light
comes on again and stays on for
30 seconds at the next ignition
cycle, it did not reset. The system
needs to be reset again.
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 filter 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.
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10-12 Vehicle Care
Automatic Transmission
Fluid
It is not necessary to check the
transmission fluid level.
A transmission fluid leak is the
only reason for fluid loss. If a leak
occurs, take your vehicle to the
dealer/retailer and have it repaired
as soon as possible.
Change the fluid and filter at the
intervals listed inScheduled
Maintenance
on page 11‑2, and be
sure to use the transmission fluid
listed in Recommended Fluids and
Lubricants on page 11‑7.
Notice: Use of the incorrect
automatic transmission fluid may
damage the vehicle, and the
damages may not be covered by
the vehicle's warranty. Always
use the automatic transmission
fluid listed in Recommended
Fluids and Lubricants
on
page 11‑7. For the 2.4L, 3.5L and 3.6L engines,
the transmission fluid will not reach
the end of the dipstick unless the
transmission is at operating
temperature. If you need to check
the transmission fluid level, please
take your vehicle to your dealer/
retailer.
Engine Air Cleaner/Filter
See
Engine Compartment Overviewon page 10‑6for the location of the
engine air cleaner/filter.
When to Inspect the Engine
Air Cleaner/Filter
Inspect the air cleaner/filter at the
Maintenance IIintervals and replace
it at the first oil change after each
80 000 km (50,000 mile) interval. See
Scheduled Maintenance
on
page 11‑2for more information.
If you are driving in dusty/dirty
conditions, inspect the filter at
each engine oil change.
How to Inspect the Engine
Air Cleaner/Filter
To inspect the air cleaner/filter
remove the filter from the vehicle
and lightly shake the filter to release
loose dust and dirt. If the filter
remains caked with dirt, a new filter
is required.
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11-2 Service and Maintenance
{WARNING
Performing maintenance work can
be dangerous. Some jobs can
cause serious injury. Perform
maintenance work only if you
have the required know-how and
the proper tools and equipment.
If in doubt, see your dealer/
retailer to have a qualified
technician do the work. See
Doing Your Own Service Work
on
page 10‑4
.
At your General Motors dealer/
retailer, you can be certain that you
will receive the highest level of
service available. Your dealer/
retailer has specially trained service
technicians, uses genuine GM
replacement parts, as well as, up to
date tools and equipment to ensure
fast and accurate diagnostics. The proper replacement parts,
fluids, and lubricants to use are
listed in
Recommended Fluids and
Lubricants
on page 11‑7and
Maintenance Replacement Partson
page 11‑9. We recommend the use
of genuine parts from your dealer/
retailer.
Rotation of New Tires
To maintain ride, handling, and
performance of the vehicle, it is
important that the first rotation
service for new tires be performed
when they have 8 000 to 13 000 km
(5,000 to 8,000 miles). See Tire
Rotation on page 10‑57.
Scheduled
Maintenance
When the Change Engine Oil
Light Displays
Change engine oil and filter. See
Engine Oilon page 10‑8. An
Emission Control Service.
When the change engine oil light
displays, service is required for the
vehicle as soon as possible, within
the next 1 000 km/600 miles.
If driving under the best conditions,
the engine oil life system might not
indicate the need for vehicle service
for more than a year. The engine oil
and filter must be changed at least
once a year and the oil life system
must be reset. Your dealer/retailer
has trained service technicians who
will perform this work and reset the
system. If the engine oil life system
is reset accidentally, service the
vehicle within 5 000 km/3,000 miles
since the last service. Reset the oil
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