2010 Chevrolet Colorado Crew Cab Owner's Manual - Page 327
2010 Chevrolet Colorado Crew Cab Manual
Page 327 highlights
Front Axle When to Check and Change Lubricant It is not necessary to regularly check your front axle fluid unless you suspect there is a leak or you hear an unusual noise. A fluid loss could indicate a problem. Have it inspected and repaired. If the level is below the bottom of the filler plug hole, located on the front axle, you may need to add some lubricant. When the differential is cold, add enough lubricant to raise the level to 1/2 inch (12 mm) below the filler plug hole. When the differential is at operating temperature (warm), add enough lubricant to raise the level to the bottom of the filler plug hole. How to Check Lubricant What to Use See Recommended Fluids and Lubricants on page 7‑10 to determine what kind of lubricant to use. Headlamp Aiming Headlamp aim has been preset at the factory and should need no further adjustment. However, if your vehicle is damaged in a crash, the headlamp aim may be affected. Aim adjustment to the low-beam headlamps may be necessary if oncoming drivers flash their high-beam headlamps at you (for vertical aim). To get an accurate reading, the vehicle should be on a level surface. If the headlamps need to be re-aimed, it is recommended that you take the vehicle to your dealer/ retailer for service. 6-47