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:

    Engine Specifications
    ...

    Object Detection System Messages
    PARK ASST (Assist) BLOCKED SEE OWNERS MANUAL This message displays if there is something interfering with the park assist system. See Ultrasonic Parking Assist  for more information. PARK ASS ...

    Wiper Blade Replacement
    Windshield wiper blades should be inspected for wear or cracking. See Maintenance Schedule  for more information. Replacement blades come in different types and are removed in different ways. ...