California Fuel
Requirements
If the vehicle is certified to meet
California Emissions Standards, it is
designed to operate on fuels that
meet California specifications.
See the underhood emission control
label. If this fuel is not available in
states adopting California emissions
standards, the vehicle will operate
satisfactorily on fuels meeting federal
specifications, but emission control
system performance might be
affected. The malfunction indicator
lamp could turn on and the vehicle
might fail a smog-check test.
SeeMalfunction Indicator Lamp
on page 4-19. If this occurs, return
to your authorized dealer/retailer for
diagnosis. If it is determined that the
condition is caused by the type of
fuel used, repairs might not be
covered by the vehicle warranty.
Fuels in Foreign
Countries
If you plan on driving in another
country outside the United States
or Canada, the proper fuel might
be hard to find. Never use leaded
gasoline or any other fuel not
recommended in the previous text
on fuel. Costly repairs caused by
use of improper fuel would not be
covered by the vehicle warranty.
To check the fuel availability, ask
an auto club, or contact a major oil
company that does business in the
country where you will be driving.
Fuel Additives
To provide cleaner air, all gasolines
in the United States are now required
to contain additives that help prevent
engine and fuel system deposits
from forming, allowing the emission
control system to work properly.
In most cases, you should not have
to add anything to the fuel. However,
some gasolines contain only theminimum amount of additive
required to meet U.S. Environmental
Protection Agency regulations.
To help keep fuel injectors and
intake valves clean, or if the vehicle
experiences problems due to dirty
injectors or valves, look for gasoline
that is advertised as TOP TIER
Detergent Gasoline. Look for the
TOP TIER label on the fuel pump to
ensure gasoline meets enhanced
detergency standards developed
by the auto companies. A list of
marketers providing TOP TIER
Detergent Gasoline can be found
at www.toptiergas.com.
For customers who do not use
TOP TIER Detergent Gasoline
regularly, one bottle of GM Fuel
System Treatment PLUS, added
to the fuel tank at every engine oil
change, can help clean deposits
from fuel injectors and intake valves.
GM Fuel System Treatment PLUS
is the only gasoline additive
recommended by General Motors.
It is available at your dealer/retailer.
Driving and Operating 8-45
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 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 SOON message comes on.
SeeEngine Oil Messages on
page 4-32. 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.
After changing the engine oil, reset
the system:
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
SOON message is not on,
the system is reset.
If the CHANGE ENGINE OIL SOON
message 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.
Vehicle Care 9-13
Engine (cont.)
Coolant
Temperature Gage.........4-14
Cooling System................9-17
Cooling System
Messages....................4-32
Cover............................... 9-9
Drive Belt Routing.............11-4
Exhaust...........................8-25
Oil Pressure Gage............4-12
Overheating.....................9-24
Power Messages..............4-33
Pressure Light..................4-25
Running While Parked.......8-26
Starting...........................8-19
Engine Oil
Life System.....................9-13
Messages........................4-32
Temperature Gage............4-13
Entry Lighting........................ 5-6
Equipment, Towing...............8-55
Event Data Recorders.........12-14
Extender, Safety Belt............2-20
Exterior Lamp Controls........... 5-1F
Filter
Engine Air Cleaner............9-16
Flashers, Hazard Warning....... 5-4
Flash-to-Pass........................ 5-3
Flat Tire..............................9-69
Flat Tire, Changing...............9-77
Fluid
Automatic Transmission.....9-14
Brakes............................9-28
Power Steering.................9-25
Washer...........................9-26
Fog Lamps
Bulb Replacement.............9-40
Front................................ 5-5
Light...............................4-26
Front Seats
Adjustment........................ 2-3
Heated............................. 2-6
Fuel...................................8-43
Additives.........................8-45
Economy Driving................ 8-2
Filling a Portable Fuel
Container.....................8-48Fuel (cont.)
Filling the Tank.................8-46
Fuels in Foreign
Countries.....................8-45
Gage ..............................4-11
Gasoline Specifications......8-44
Management, Active..........8-25
Recommended.................8-44
Requirements, California....8-45
System Messages.............4-33
Fuses
Engine Compartment
Fuse Block...................9-42
Fuses and Circuit
Breakers......................9-42
Instrument Panel Fuse
Block...........................9-45
Rear Compartment
Fuse Block...................9-46
G
Gages
Engine Coolant
Temperature.................4-14
Engine Oil Pressure..........4-12
Engine Oil Temperature.....4-13
i-4 INDEX