2006 Hyundai Sonata Owner's Manual - Page 220

6 DO-IT-YOURSELFMAINTENANCE 16 G110D02O-AAT To Check the Transaxle Fluid Level Park the car on level ground with the parking brake engaged. When the transaxle fluid level is checked, the transaxle fluid should be at normal operating temperature and the engine idling. Fluid level should be within "HOT" range G110D01NF G110D02NF 2. Remove the transaxle dipstick, wipe it clean, reinsert the dipstick as far as it will go, then remove it again. Now check the fluid level on the dipstick. It should be in the "HOT" range on the dipstick. C090F02NF 3. If the transaxle fluid level is low, use a funnel to add transaxle fluid through the dipstick tube until the level reaches the "HOT" range. Do not overfill. While the engine is idling, apply the brakes and move the gear selector lever from "P" to each of its other positions - "R", "N", "D" - and then return to "N" or "P". With the engine still idling: 1. Open the hood, being careful to keep hands, long hair and clothing clear of any moving parts.