Hummer H3T Automobile User Manual


 
Scheduled Maintenance
When the CHANGE OIL message
displays in the Driver Information
Center (DIC), service is required for
the vehicle. See DIC Warnings
and Messages on page 3-37. 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 5-15 for information on
the Engine Oil Life System and
resetting the system.
When the CHANGE OIL 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 CHANGE
OIL 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
message displays 10 months or
more since the last service or if the
message has not come on at all
for one year.
6-4 Maintenance Schedule