Garmin GNC 355 Pilot's Manual page 10

Warnings, Cautions, and Notes
WARNING
Never use datalink weather information for maneuvering in, near, or around
areas of hazardous weather. Information contained within datalink weather
products may not accurately depict current weather conditions.
WARNING
Do not use the indicated datalink weather product age to determine the age of
the weather information shown by the datalink weather product. Due to time
delays inherent in gathering and processing weather data for datalink
transmission, the weather information shown by the datalink weather product
may be older than the indicated weather product age.
WARNING
Do not rely solely upon Datalink services to provide TFR information. Always
confirm tFR information through official sources such as flight service stations
or air traffic control.
WARNING
Always refer to current aeronautical charts for appropriate minimum clearance
altitudes. The displayed MSAs are only advisory in nature and should not be
relied upon as the sole source of obstacle and terrain avoidance information.
WARNING
Do not use GPS to navigate to any active waypoint identified as a "NON WGS84
WPT" by a system message. "NON WGS84 WPT" waypoints are derived from an
unknown map reference datum that may be incompatible with the map
reference datum used by GPS (known as WGS84) and may be positioned in error
as displayed.
WARNING
Do not rely solely upon the display of traffic information for collision avoidance
maneuvering. The traffic display does not provide collision avoidance resolution
advisories and does not under any circumstances or conditions relieve the pilot's
responsibility to see and avoid other aircraft.
WARNING
Do not rely on the accuracy of attitude and heading indications in geographic
areas where variation in the earth's magnetic field exists. This includes: North of
72° North latitude at all longitudes; South of 70° South latitude at all longitudes;
North of 65° North latitude between longitude 75° W. and 120° W. (Northern
Canada); North of 70° North latitude between longitude 70° W. and 128° W.
(Northern Canada); North of 70° North latitude between longitude 85° E. and
114° E. (Northern Russia); South of 55° South latitude between longitude 120°
E. and 165° E. (Region south of Australia and New Zealand).
viii Pilot's Guide 190-02488-01 Rev. B