The Jeep Wrangler is a classic sport-utility, primarily known for its off-road ability. Most Jeep Wranglers (all until 2008, when 2WD became optional) are equipped with 4WD. This does not mean that your Jeep is constantly in 4WD mode; instead, it means that your Jeep has the ability to use 4WD. This is primarily used in situations when additional traction is needed. There are two different modes of 4WD. Each has its recommended uses. Make sure you completely understand the 4WD shifting process before attempting to shift into either 4WD mode.
Determine whether you need to shift into 4H or 4L (high or low). 4H is used for minor slippery or loose road conditions.