GMC 2012 GMC Sierra Denali, Owner'S Manual, Page: 441 / 502

Black plate (3,1)
GMC Sierra Denali Owner Manual - 2012 - 2nd - 11/10/11
Service and Maintenance 11-3
Maintenance
Schedule
Owner Checks and Services
At Each Fuel Stop
. Check the engine oil level. See
Engine Oil on page 10 ‑ 7 .
Once a Month
. Check the tire inflation
pressures. See
Tire Pressure on
page 10 ‑ 55 .
. Inspect the tires for wear. See
Tire Inspection on page 10 ‑ 62 .
. Check the windshield washer
fluid level. See
Washer Fluid on
page 10 ‑ 24 .
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km/600 mi. If driven
under the best conditions, the
engine oil life system might not
indicate the need for vehicle service
for more than a year. The engine oil
and filter must be changed at least
once a year and the oil life system
must be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km/3,000 mi since the
last service. Reset the oil life
system when the oil is changed.
See
Engine Oil Life System on
page 10 ‑ 10 .
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See
Tire
Rotation on page 10 ‑ 62 .
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See
Engine
Oil on page 10 ‑ 7 and Engine Oil
Life System on page 10 ‑ 10 .
. Check engine coolant level. See
Engine Coolant on page 10 ‑ 17 .
.
Check windshield washer fluid
level. See
Washer Fluid on
page 10 ‑ 24 .
. Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See
Exterior
Care on page 10 ‑ 93 . Replace
worn or damaged wiper blades.
See
Wiper Blade Replacement
on page 10 ‑ 32 .