2006 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 434

Consistency of Readings Always check the fluid level at least twice using the procedures described previously. Consistency (repeatable readings) is important to maintaining proper fluid level. If inconsistent readings persist, check the transmission breather to be sure it is clean and unclogged. If readings are still inconsistent, contact your dealer. Notice: Use of the incorrect automatic transmission fluid may damage your vehicle, and the damages may not be covered by your warranty. Always use the automatic transmission fluid listed in Recommended Fluids and Lubricants (Gasoline Engine) on page 6-14. • After adding fluid, recheck the fluid level as described under "How to Check Automatic Transmission Fluid," earlier in this section. How to Add Automatic Transmission Fluid Refer to the Maintenance Schedule to determine what kind of transmission fluid to use. See Recommended Fluids and Lubricants (Gasoline Engine) on page 6-14. Add fluid only after checking the transmission fluid while it is hot. A cold check is used only as a reference. If the fluid level is low, add only enough of the proper fluid to bring the level up to the HOT area for a hot check. It does not take much fluid, generally less than one pint (0.5 L). Do not overfill. • When the correct fluid level is obtained, push the dipstick back in all the way. Manual Transmission Fluid When to Check Manual Transmission Fluid A good time to have your manual transmission fluid checked is when the engine oil is changed. See Additional Required Services (Gasoline Engine) on page 6-7 to find out when to change your transmission fluid. 5-32