2003 GMC Sierra 1500 Pickup Owner's Manual - Page 392

A. Engine Air Cleaner/Filter B. Coolant Surge Tank C. Air Filter Restriction Indicator (If €quipped) D.Engine Oil Dipstick E. Automatic Transmission Dipstick (If Equipped) F. Engine Oil Fill G. Fan H. Remote Negative (-) Terminal (GND) I. Remote Positive (+) Terminal J. Power Steering Fluid Reservoir K. Brake Fluid Reservoir L. Clutch Fluid Reservoir (If Equipped) M. Underhood Fuse Block N. Battery 0. Windshield Washer Fluid Reservoir Engine Oil If your vehicle has a diesel engine, see "Engine Oil" in the Diesel Engine Supplement. If the CHECK OIL LEVEL light appears on the instrument cluster, it means you need to check your engine oil level right away. For more information, see Driver Information Center (DIC) on page 3-50. You should check your engine oil level regularly; this is an added reminder. 5-17