2005 Hummer H2 Owner's Manual - Page 325

A. Coolant Surge Tank. See Cooling System on page 5-29 and Coolant Surge Tank Pressure Cap on page 5-26. B. Engine Air Cleaner/Filter and Air Filter Restriction Indicator (If Equipped). See Engine Air Cleaner/Filter on page 5-18. C. Windshield Washer Fluid Reservoir. See "Adding Washer Fluid" under Windshield Washer Fluid on page 5-34. D. Engine Oil Fill Cap. See "When to Add Engine Oil" under Engine Oil on page 5-13. E. Engine Oil Dipstick. See "Checking Engine Oil" under Engine Oil on page 5-13. F. Automatic Transmission Fluid Dipstick. See "Checking the Fluid Level" under Automatic Transmission Fluid on page 5-21. G. Fan. See Cooling System on page 5-29. H. Remote Negative (−) Terminal (GND). See Jump Starting on page 5-39. I. Power Steering Fluid Reservoir (Out of View). See Power Steering Fluid on page 5-33. J. Remote Positive (+) Terminal. See Jump Starting on page 5-39. K. Brake Fluid Reservoir. See "Brake Fluid" under Brakes on page 5-35. L. Underhood Fuse Block. See Underhood Fuse Block on page 5-107. M. Battery. See Battery on page 5-38. Engine Oil If the CHECK OIL LEVEL message appears on the Driver Information Center (DIC), it means you need to check your engine oil level right away. For more information, see CHECK OIL LEVEL under DIC Warnings and Messages on page 3-47. You should check your engine oil level regularly; this is an added reminder. Checking Engine Oil It is a good idea to check your engine oil every time you get fuel. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground. The engine oil dipstick handle is a yellow loop. See Engine Compartment Overview on page 5-12 for the location of the engine oil dipstick. 1. Turn off the engine and give the oil several minutes to drain back into the oil pan. If you do not do this, the oil dipstick might not show the actual level. 2. Pull out the dipstick and clean it with a paper towel or cloth, then push it back in all the way. Remove it again, keeping the tip down, and check the level. 5-13