On-Vehicle Inspection

WARNING: This page is about a different car, the 2007 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

CHECK STEERING WHEEL FREE PLAY
1. Stop the vehicle and face the tires straight ahead.
2. Turn the steering wheel gently right and left by hand, and check the steering wheel free play.
  Maximum free play: 30 mm (1.18 in.)
  
  Fig 1: Checking Steering Wheel Free Play
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002