Low One-Way Clutch
WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
The low OWC is a mechanical diode type OWC which allows the transaxle case to hold the reverse/overdrive carrier stationary when the transaxle is in 1st gear. The low OWC will only hold the reverse/overdrive carrier assembly during acceleration. When coasting, the low OWC will overrun, disconnecting the final drive from the compound planetary gearset.