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TraiLex "walks" up Walker Hill, no problem. Once in a while, in tougher sections like this rock garden hill, we'd assist the factory Traction Control with the rear-axle ARB Air Locker. The Lexus could have made it with Traction Control alone, but it wouldn't have scored any Driving Elegant awards. It just doesn't make sense to have to feed in the throttle until you get wheelspin, in order to get traction assistance. It's so much smoother, quieter, and easier on drivetrain components to just push a button and calmly walk at idle over the obstacle. Wonder if the OEs will ever listen? Oh, and yep, that is the kiss in the driver's door from the Gatekeeper ... Gotta have trail patina, right?