HA! Trick question. The Scheduled Maintenance Guide (page 437 of the 2011 Owner's Manual) says to check the automatic transmission fluid every 15,000 miles if the transmission has a dipstick. Ours does not have a dipstick under the hood as indicated on page 403. Page 403 says, "Your transmission does not consume fluid. However, fluid level should be checked if the transmission is not working properly, (i.e., if the transmission slips or shifts slowly) or if you notice some sign of fluid leakage. Transmission fluid should be checked by an authorized dealer. If required, fluid should be added by an authorized dealer."
There is, in fact, a transmission dipstick. It is located on the passenger side of the transmission just above the transmission pan. If you feel the need to check the transmission level yourself, it should be done with the engine and transmission at full operating temperature, with the engine idling in park.
