Service Intervals & Specifications

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2003 Hummer H2, 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 GMC Sierra, and 2003 GMC Savana Special. However, it is still accessible from the selected car via links, so may be relevant.

REPLACEMENT INTERVALS

Component

Interval (Miles)

Sierra & Silverado

Accessory Drive Belt

⁽¹⁾ 60,000

Air Filter

30,000

Automatic Transfer Case Fluid

50,000

Automatic Transmission Fluid & Filter

⁽²⁾

CNG In-Line Filter (CNG Engines)

60,000

Engine Coolant

150,000

Fuel Filter

30,000

Manual Transmission Fluid

150,000

Oil & Oil Filter

⁽³⁾

PCV

⁽¹⁾ 100,000

Spark Plugs

⁽⁴⁾

Except Sierra & Silverado

Accessory Drive Belt

⁽¹⁾ 60,000

Air Filter

30,000

Automatic Transfer Case Fluid

50,000

Automatic Transmission Fluid & Filter

⁽²⁾

CNG In-Line Filter (CNG Engines)

60,000

Engine Coolant

150,000

Fuel Filter

30,000

Oil & Oil Filter

⁽³⁾

PCV

⁽¹⁾ 100,000

Spark Plugs

⁽⁴⁾

⁽¹⁾	Inspect and replace as necessary.

⁽²⁾	If vehicle's GVWR is greater than 8600 lbs (3900 kg) or is used under severe conditions, replace every 50,000 miles. If used under normal conditions, replace every 100,000 miles.

⁽³⁾	If used under severe conditions, replace every 3000 miles. If used under normal conditions, replace as indicated by CHANGE OIL SOON light or every 12 months, whichever comes first.

⁽⁴⁾	On CNG engines, replace at 60,000 miles. On gasoline engines, replace at 100,000 miles.