See also:

Fail-safe
When the fail-safe operation occurs, note that the transmission will be locked in any of the forward gears according to the condition. If the vehicle is driven under extreme conditions, such as exces ...

Front seat-mounted side-impact supplemental air bag and roof-mounted curtain side-impact and rollover supplemental air bag systems
The side air bags are located in the outside of the seatback of the front seats. The curtain and rollover air bags are located in the side roof rails. These systems are designed to meet volu ...

Safety
As of this writing, the 2011 QX56 hasn't been crash-tested. Standard safety features include front and side-impact airbags, side-curtain airbags for all three rows, an electronic stability system ...