On-Vehicle Inspection

WARNING: This page is about a different car, the 2003 Lexus GX 470. However, it is still accessible from the selected car via links, so may be relevant.

CHECK STEERING WHEEL FREEPLAY
1. Park the vehicle and face the tires straight ahead.
2. Rock the steering wheel gently left and right with your hand, check the steering wheel freeplay.
  Maximum freeplay: 30 mm (1.18 in.)
  
  Fig 1: Checking Steering Wheel Freeplay
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002