WARNING: This page is about a different car, the 2006 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Engine Oil & Transmission Dipsticks & Engine Oil Fill Cap
Courtesy of DAIMLERCHRYSLER CORP.
1 - TRANSMISSION DIPSTICK
2 - ENGINE OIL DIPSTICK
3 - ENGINE OIL FILL CAP
The engine oil level indicator (2) is located at the right rear of the engine on the 4.7L engines.