* In some vehicles, the 4WD switch or dial may also have a "low" setting. When this setting is selected, the vehicle's transmission will shift into a lower gear, providing even more power and traction for tackling difficult terrain.
* Some other vehicles may have an automatic 4WD system that engages and disengages as needed. This type of system is typically found on SUVs and trucks, and it does not require the driver to manually switch between 2WD and 4WD.
It's important to note that switching into and out of 4WD while the vehicle is moving can cause damage to the drivetrain, so it's best to only do this when the vehicle is stopped. Additionally, it's important to follow the vehicle's owner's manual for specific instructions on how to use the 4WD system properly.