Lexus GS430 User Manual page 567

Spare (Vehicles with standard tires only):
Tire size
Tire inflation pressure
Wheel size
Wheel nut torque
NOTE:
For complete information on tires (e.g. replacing tires or replacing wheels), see "Checking tire inflation pressure"
through "Aluminum wheel precautions" on page 548 through 570.
T155/70D17 110M
420 kPa (4.3 kgf/cm , 4.2 bar, 60 psi)
2
17 x 4T
103 N·m (10.5 kgf·m, 76 ft·lbf.)
CHASSIS
543