If you want to purchase service information, see
Service Publications Ordering Information on
page 517.
Owner Checks and Services on page 485tells you
what should be checked, when to check it, and
what you can easily do to help keep your vehicle in
good condition.
The proper replacement parts, uids, and
lubricants to use are listed inRecommended
Fluids and Lubricants on page 489andNormal
Maintenance Replacement Parts on page 491.
When your vehicle is serviced, make sure these
are used. All parts should be replaced and all
necessary repairs done before you or anyone else
drives the vehicle. We recommend the use of
genuine GM parts.Scheduled Maintenance
When the CHANGE ENGINE OIL DIC message
comes on, it means that service is required
for your vehicle. SeeDIC Warnings and Messages
on page 202. Have your vehicle serviced as
soon as possible within the next 600 miles
(1 000 km). It is possible that, if you are driving
under the best conditions, the engine oil life
system may not indicate that vehicle service 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 GM Goodwrench
®dealer has GM-trained
service technicians who will perform this work
using genuine GM parts and reset the system.
479
If the engine oil life system is ever reset
accidentally, you must service your vehicle within
3,000 miles (5 000 km) since your last service.
Remember to reset the oil life system whenever
the oil is changed. SeeEngine Oil Life System on
page 372for information on the Engine Oil Life
System and resetting the system.
When the CHANGE ENGINE OIL DIC message
appears, certain services, checks, and inspections
are required. Required services are described
in the following for “MaintenanceI” and
“MaintenanceII.” Generally, it is recommended
that your rst service be MaintenanceI, your
second service be MaintenanceII, and that you
alternate MaintenanceIand MaintenanceII
thereafter. However, in some cases,
MaintenanceIImay be required more often.MaintenanceI— Use MaintenanceIif the
message comes on within 10 months since the
vehicle was purchased or MaintenanceII
was performed.
MaintenanceII— Use MaintenanceIIif the
previous service performed was MaintenanceI.
Always use MaintenanceIIwhenever the message
comes on 10 months or more since the last
service or if the message has not come on at all
for one year.
480