2012 Chevrolet Colorado Owner's Manual - Page 282

10-32 Vehicle Care The proper level is from 0 mm to 10 mm (0 to 3/8 in) below the bottom of the fill plug hole, located on the rear axle. 2. Firmly apply both the parking brake and the regular brake. See Parking Brake on page 9‑45. Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts. 3. For automatic transmission vehicles, try to start the engine in each gear. The vehicle should start only in P (Park) or N (Neutral). If the vehicle starts in any other position, contact your dealer for service. For manual transmission vehicles, put the shift lever in Neutral, push the clutch pedal down halfway, and try to start the engine. The vehicle should start only when the clutch pedal is pushed down all the way to the floor. If the vehicle starts when the clutch pedal is not pushed all the way down, contact your dealer for service. Rear Axle When to Check and Change Lubricant It is not necessary to regularly check rear axle fluid unless there is a leak suspected or an unusual noise is heard. A fluid loss could indicate a problem. Have it inspected and repaired. What to Use See Recommended Fluids and Lubricants on page 11‑12 to determine which kind of lubricant to use. How to Check Lubricant Starter Switch Check { WARNING When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. 1. Before starting this check, be sure there is enough room around the vehicle. To get an accurate reading, the vehicle should be on a level surface.