2001 Buick Regal Owner's Manual - Page 276

Then, without shutting off the engine, follow these steps: The automatic transaxle fluid dipstick handle is the red loop located toward the rear of the engine. See "Engine Compartment Overview" in the Index for more information on location. 1. 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 cross-hatched area. 4. If the fluid level is in the acceptable range, push the dipstick back in all the way. 6-25