When to use 4Hi, 4Lo, and 2Hi when driving a 4WD

Every 4WD vehicle comes with multiple modes or gears that your SUV can be switched to. Each gear has its own job and its own purpose, controlling your truck’s differential and where it sends its power. Here are the settings you can use with a 4WD SUV and how to use them:

2Hi: 2Hi can also simply be referred to as two-wheel drive, and it’s the most commonly used option. For people with automatic 4WD or AWD with automatic 4WD, it can be switched automatically from 2WD to 4WD when it senses slip in the wheels.

4Lo: When in 4Lo, your car is sending torque to all four wheels, but in the low range. It’s also beneficial when you need more power for pulling heavy loads at slower speeds or climbing steep grades. 

4Hi: In 4Hi, your front and rear differentials lock together, creating the ultimate traction. This is because it does not offer the same push of torque as 4Lo, 4Hi is best for getting through a situation, not out of one.

One of the most important things to remember about 4WD systems is to always use each 4WD setting properly. You should never travel in four-wheel drive on flat, smooth, dry roads, as it will damage your drivetrain.

It shouldn’t be used on smooth, flat, dry roads and it’s important to remember that the increased torque and traction do not mean you will stop quicker. You’ll still need to allow for enough braking time, especially in slippery conditions.