2002 Chevrolet Astro Owner's Manual - Page 284

Then, without shutting off the engine, follow these steps: 1. Flip the handle up and then pull out the dipstick and wipe it with a clean rag or paper towel. 2. Push it back in all the way, wait three seconds and then pull it back out again. 3. Check both sides of the dipstick, and read the lower level. The fluid level must be in the COLD area, below the cross-hatched area, for a cold check or in the HOT area or cross-hatched area for a hot check. The transmission dipstick has a red handle and is located near the center of the engine compartment behind the air cleaner. See "Engine Compartment Overview" in the Index for more information on location. 4. If the fluid level is in the acceptable range, push the dipstick back in all the way; then flip the handle down to lock the dipstick in place. 6-24