Garmin G3X Pilot's Manual page 7

Warnings, Cautions & Notes
WARNING: The illustrations in this guide are only examples. Never use the G3X
to attempt to penetrate a thunderstorm. Both the FAA Advisory Circular, Subject:
Thunderstorms, and the Aeronautical Information Manual (AIM) recommend
avoiding "by at least 20 miles any thunderstorm identified as severe or giving an
intense radar echo."
WARNING: For safety reasons, G3X operational procedures must be learned on
the ground.
WARNING: Because of variation in the earth's magnetic field, operating the G3X within
the following areas could result in loss of reliable attitude and heading indications. 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)
WARNING: The Garmin G3X has a very high degree of functional integrity. However,
the pilot must recognize that providing monitoring and/or self-test capability for all
conceivable system failures is not practical. Although unlikely, it may be possible
for erroneous operation to occur without a fault indication shown by the G3X. It is
thus the responsibility of the pilot to detect such an occurrence by means of cross-
checking with all redundant or correlated information available in the cockpit.
WARNING: The United States government operates the Global Positioning System
and is solely responsible for its accuracy and maintenance. The GPS system is subject
to changes which could affect the accuracy and performance of all GPS equipment.
Portions of the Garmin G3X utilize GPS as a precision electronic NAVigation AID
(NAVAID). Therefore, as with all NAVAIDs, information presented by the G3X can
be misused or misinterpreted and, therefore, become unsafe.
WARNING: Do not use basemap (land and water data) information for primary
navigation. Basemap data is intended only to supplement other approved
navigation data sources and should be considered as an aid to enhance situational
awareness.
WARNING: Do not use the approach information provided by the VFR navigation
database residing within the G3X as a means of navigating any instrument
approach. The G3X VFR navigation database is limited to present only the waypoints
for the final approach leg of a published procedure. These waypoints and associated
course line are made available for monitoring purposes only.
190-01115-00 Rev. G Garmin G3X Pilot's Guide