Buick 2009 Enclave - Manual (Page 382)

Owner Checks and Services on page 6-8 tells what
should be checked, when to check it, and what
can easily be done to help keep the vehicle in good
condition.
The proper replacement parts, fluids, and lubricants to
use are listed in Recommended Fluids and Lubricants
on page 6-11 and Maintenance Replacement Parts
on page 6-13. When the 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
parts from your dealer/retailer.
Scheduled Maintenance
When the change engine oil light or CHANGE OIL
SOON DIC message displays, service is required for
the vehicle. Have the vehicle serviced as soon as
possible within the next 600 miles (1 000 km). It is
possible that, if 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 filter must be changed at least
once a year and at this time the system must be reset.
Your dealer/retailer has trained service technicians
who will perform this work using genuine parts and reset
the system.
If the engine oil life system is ever reset accidentally,
service the vehicle within 3,000 miles (5 000 km)
since the last service. Remember to reset the oil life
system whenever the oil is changed. See Engine Oil Life
System on page 5-18 for information on the Engine
Oil Life System and resetting the system.
When the light or message appears, certain services,
checks, and inspections are required. Required services
are described in the following for “Maintenance
I ” and
“Maintenance II .” Generally, it is recommended that the
first service be Maintenance I , the second service be
Maintenance II , and then alternate Maintenance I
and Maintenance II thereafter. However, in some cases,
Maintenance II may be required more often.
Maintenance I — Use Maintenance I if the light or
message displays within 10 months since the vehicle
was purchased or Maintenance
II was performed.
Maintenance II — Use Maintenance II if the previous
service performed was Maintenance I . Always use
Maintenance II whenever the light or message displays
10 months or more since the last service or if the
light or message has not come on at all for one year.
6-4