Scheduled Maintenance - GMC 2006 Envoy Owner's Manual

Owner Checks and Services on page 6-9 tells 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, fluids, and lubricants to
use are listed in Recommended Fluids and Lubricants
on page 6-12 and Normal Maintenance Replacement
Parts on page 6-14. 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 light or CHANGE ENGINE
OIL DIC message comes on, it means that service is
required for your vehicle. See Change Engine Oil Light
on page 3-46 or DIC Warnings and Messages on
page 3-54. 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, your engine oil and filter must be changed at
least once a year and at this time the system must
be reset. Your GM Goodwrench
service technicians who will perform this work using
genuine GM parts and reset the system.
6-4
®
dealer has GM-trained
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. See
Engine Oil Life System on page 5-20 for information on
the Engine Oil Life System and resetting the system.
When the change engine oil light or CHANGE ENGINE
OIL DIC 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 your
first service be Maintenance I, your second service be
Maintenance II, and that you 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 comes on 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 comes
on 10 months or more since the last service or if the light
or message has not come on at all for one year.