Booster seats

Booster seats  - Child restraints - Safety — Seats, seat belts and supplemental restraint 
system - Infiniti G Owners Manual - Infiniti G

See also:

Good Ride, Better Handling
Though firmer than some in this class — the Mercedes C-Class, for one — the G37 rides comfortably, especially given our test car's stiffer rear-shock tuning, 18-inch wheels and lower-profile tires ...

Tire Pressure Monitoring System (TPMS)
This vehicle is equipped with the Tire Pressure Monitoring System (TPMS). It monitors tire pressure of all tires except the spare. When the low tire pressure warning light is lit and the CHECK TIRE PR ...

Vehicle security system
The vehicle security system provides visual and audible alarm signals if someone opens the doors, liftgate or hood when the system is armed. It is not, however, a motion detection type system that ...