5.3K views · 227 reactions | 4WD controls explained! Want to know what 4H or a diff lock does? And why you can't use some 4WD modes on the tarmac? This is an explainer video that runs you through the common controls on a 4WD ute or SUV. SKIP AHEAD: Before you start: 00:47 2WD and traction control: 02:09 Rear Differential Lock: 03:47 4WD high range: 05:38 4WD low range: 09:46 Hill Descent Control: 11:50 Outro: 12:23 | Paul Maric | Facebook