Probably that TSB / recall for the VGRS snap ring
I think it's this also. Check your VIN to see if the recall was ever done, and if not, you should be able to get it repaired for free at Lexus.
Here's the recall info:
STEERING SHAFT
THIS COULD RESULT IN LOSS OF STEERING CONTROL INCREASING THE RISK OF A CRASH.
NHTSA Campaign Number: 10V346000
Manufacturer TOYOTA MOTOR NORTH AMERICA, INC.
Components STEERING
Potential Number of Units Affected 39,159
Summary TOYOTA IS RECALLING CERTAIN MODEL YEAR 2003-2007 LEXUS LX470 VEHICLES.
THE CONSTRUCTION OF THE STEERING SHAFT IS SUCH THAT THE SNAP RING ON THE SHAFT MAY DISENGAGE WHEN THE VEHICLE EXPERIENCES AN UNUSUALLY SEVERE IMPACT TO THE FRONT WHEELS. IF THE SNAP RING BECOMES DISENGAGED AND THE STEERING WHEEL IS THEN REPEATEDLY TURNED TO THE LOCKED POSITION, OVER TIME THE STEERING SHAFT MAY BECOME DISCONNECTED.
Remedy DEALERS WILL REPLACE THE SNAP RING WITH A NEWLY DESIGNED ONE AND INSTALL AN ADDITIONAL COMPONENT WHICH WILL PREVENT SEPARATION OF THE STEERING SHAFT.
THIS SERVICE WILL BE PERFORMED FREE OF CHARGE.
THE SAFETY RECALL BEGAN ON AUGUST 23, 2010.
OWNERS MAY CONTACT LEXUS AT 1-800-255-3987.
Notes OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO
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