User Manual - Page 308

For 2003 ALERO.

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Scheduled Maintenance
The services shown in this schedule up to 100,000 miles
(1
66
000
km) should be repeated after 100,000 miles
(1
66
000
km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240
000
km) should be repeated at the same interval
after 150,000 miles
(240
000
km) for the life of this
vehicle.
See
Part B: Owner Checks and Services on page
6-9
and
Part C: Periodic Maintenance Inspections on
page
6-
13.
Footnotes
t
The
U.S.
EfMrmmef%al Prdectim
Agency
or
the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
,iia;ii;eiiaiic.e
be
,.ec.ui.u'eu'.
+
A good time to check your brakes is during tire
rotation. See Brake System Inspection on page
6-14.
Engine
Oil
Scheduled Maintenance
Change engine
oil
and filter as indicated by the
GM
Oil Life SystemTM (or every
12
months, whichever
occurs first). Reset the system.
Your vehicle has a computer system that lets you know
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 will be indicated can
vary considerably. For the oil life system to work
properly, you must reset the system every time the oil is
changed.
When the system has calculated that
oil life has been
diminished, it
wi!!
indicate that an
oil
change
is
necessary. A CHANGE OIL light will come on. Change
your oil as soon as possible within the next two
times you stop for fuel. It is possible that,
if
you are
driving under the best conditions, the oil life system may
not indicate that an oil change is necessary for over a
year. However, your engine oil and filter must
be
must be reset. It is also important to check your oil
regularly and keep it at the proper level.
chs-mgd
!ezst
s-ve
2
ye2r
2nd
2t
this
?im,e
the
cwctam
'J
-*-*
'
*
6-5
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