What does 4L mean?

2 Answers
Erica
08/29/25 8:33am
4L in vehicles refers to the low-range gear in four-wheel drive mode. When driving through swamps, deserts, or rough terrains, engaging the four-wheel drive low-range gear can significantly improve the vehicle's off-road capability, and the control method is relatively straightforward. 4H and 4L are two modes available in four-wheel drive vehicles. 4H stands for four-wheel drive high-range mode, while 4L represents four-wheel drive low-range mode. These two drive modes differ in their control over the transmission system and are suited for different scenarios. Proper utilization of four-wheel drive modes based on terrain can not only enhance the vehicle's off-road performance but also help reduce fuel consumption to some extent. For traversing snowy or slippery surfaces, the 4H mode is highly suitable as it ensures adequate drive wheel traction while preventing excessive driving force that could cause wheel spin. The 4L mode, with its substantial driving force, is not appropriate for such conditions but is ideal for climbing steep slopes or off-road driving, where it maximizes vehicle power. It's important to note that high-range four-wheel drive (4H) is not suitable for highway driving. For part-time four-wheel drive vehicles, neither 4H nor 4L modes should be used on dry paved roads; instead, the 2H mode should be selected.
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LeAaron
09/11/25 6:01am
I've been driving off-road vehicles for years, and the term "4L" sounds familiar to me. It stands for four-wheel drive low-range mode, specifically designed in the vehicle's drivetrain for climbing steep slopes or getting out of mud pits, providing the wheels with greater torque for more stable and powerful driving. I often switch to this mode when off-roading in mountainous areas, such as climbing a 45-degree slope—the engine revs aren't high, but the power is substantial, making it much more effective than the regular four-wheel drive mode (called 4H). However, avoid using it on regular roads to prevent differential wear or unnecessary fuel consumption. Remember to stop the vehicle before shifting into 4L, and some models may require pressing a button. Beginners mistakenly using 4L at high speeds can cause component damage. If you're into off-roading, it's always good to carry a tow rope.
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