Infiniti QX: Antifreeze - Cold weather driving - Starting and driving - Infiniti QX Owner's ManualInfiniti QX: Antifreeze

In the winter when it is anticipated that the outside temperature will drop below 328F (08C), check antifreeze to assure proper winter protection. For additional information, see “Engine cooling system” in the “8. Maintenance and do-it-yourself” section.

    Freeing a frozen door lock
    To prevent a door lock from freezing, apply deicer through the key hole. If the lock becomes frozen, heat the key before inserting it into the key hole or use the Intelligent Key system. ...

    Battery
    If the battery is not fully charged during extremely cold weather conditions, the battery fluid may freeze and damage the battery. To maintain maximum efficiency, the battery should be checked ...

    See also:

    Language — English/Metric
    To change the language of the navigation screens or to change the navigation screens from English or metric, see Driver Information Center (DIC)   for more information. ...

    Connecting a USB Storage Device or iPod®
    To connect a USB storage device, connect the device to the USB port located in the instrument panel storage area. See Instrument Panel Storage  for more information. The USB port can be used ...

    Dynamic response
    The dynamic response system adjusts the suspension to eliminate or reduce body roll while cornering on-road, and to provide greater axle articulation and improved traction when driving off-road. ...