Range Rover steering knuckle fractures caused complaints which caused a federal investigation that has been greatly expanded and upgraded.
The initial National Highway Traffic Safety Administration investigation focused on steering knuckle failures in 2014-2017 Range Rover Sports built on the L494 chassis.
The steering knuckle investigation has been expanded to include 2014-2022 Range Rover and 2014-2022 Range Rover Sport SUVs.
And while the original investigation included about 92,000 Land Rovers, the expanded and upgraded probe involves more than 331,000 SUVs.
Safety regulators are looking at what causes cracks at the upper portion of the front aluminum steering knuckle assembly. Range Rover owners complain about fractures at the joints where the steering knuckles attach to the upper control arm ball joints.
A fracture will cause the upper suspension arm to detach and cause a driver problems controlling the La …
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