Chevrolet 2009 Silverado, Owner'S Manual

Page: 546 / 598

Owner Checks and Services on page 6-11 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 6-15 and Maintenance Replacement Parts
on page 6-17. 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 (Gasoline
Engine)
This maintenance section applies to vehicles with a
gasoline engine. For diesel engine vehicles, see
the maintenance schedule section in the DURAMAX
®
Diesel manual.
When the CHANGE ENGINE OIL SOON 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 CHANGE ENGINE OIL SOON 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
ENGINE OIL SOON 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