The standard Automatic Limited-Slip Differential (Auto LSD) helps provide better acceleration in deep sand or mud and on mixed-friction surfaces. Compared to a conventional mechanical limited slip differential, the Auto LSD system is much more responsive and has better wear characteristics. The combination of Auto LSD and Vehicle Stability Control (VSC) as standard equipment on every Tundra model was a significant first in the full-size pickup segment.

The Tundra’s VSC system integrates traction control (TRAC) and enhances traction on or off-road by helping to keep the vehicle going on its intended course. VSC detects front-wheel slide and rear-wheel slide during cornering and attempts to help control either condition with throttle intervention and/or by braking individual wheels.

Integration of these technologies also brings driver-selectable versatility to tackle just about any road surface or driving condition. In “normal” mode, VSC, TRAC and Auto LSD all function to help enable traction and control capability. “TRAC Off” activates Auto LSD to help extricate the Tundra from extreme conditions. The “VSC Off” mode turns off all three of these systems.
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AUTOMATIC LIMITED-SLIP DIFFERENTIAL (Auto LSD)

Auto LSD uses the brakes to simulate the action of a mechanical limited-slip differential. By applying brakes individually to wheels spinning with no traction, torque is sent to the wheels with grip. Even a 4x2 Tundra can dig itself out of many difficult low-traction situations. Typically, engine torque is distributed to the rear wheels through an open differential. An open differential sends power down the path of least resistance. Great for turns, when the outside wheel has to spin faster than the inside wheel. But not so great if a wheel loses traction, because the differential will send all of its torque to the spinning wheel. With Auto LSD, Tundra will apply brakes to the slipping wheel. This increases resistance at the wheel with slip, feeding power to the wheel with grip.