Smart-Lok is always adapting to the conditions by monitoring exactly what the vehicle’s doing over several parameters. Press the MUD button, though, and special calibrations for wet, boggy, and soft muddy terrain are engaged. MUD mode fully locks the front end when high engine torque and / or slippage are detected.
With four drive modes (2x4, locked 4x4, MUD, and TRAIL) to choose from and 8 on the hardworking Defender X mr models, you're able to overcome deeper obstacles than ever.
Key inputs monitored: engine torque and wheel speed