Final answer:
The Jeep Liberty has been offered with several 4WD systems such as Command-Trac, a part-time 4WD; Selec-Trac, an option for full-time or part-time 4WD; and Selec-Trac II, an active full-time 4WD system.
Step-by-step explanation:
The question is about the different types of 4WD (four-wheel drive) systems that are available for the Jeep Liberty. Throughout its production, the Jeep Liberty has been offered with several 4WD systems. These include:
- Command-Trac, which is a part-time 4WD system allowing the driver to shift between two-wheel drive (2WD) and 4WD. It is best used in off-road or slippery conditions.
- Selec-Trac, which provides the option to run in either part-time 4WD or full-time 4WD. The full-time 4WD can be used on dry pavement without causing damage to the drivetrain.
- Selec-Trac II, which is an active full-time 4WD system that automatically manages power distribution between the front and rear axles as needed, typically seen in later models of the Liberty.
These systems enhance the Jeep Liberty's off-road capabilities and provide the driver with options to deal with a variety of driving conditions.