Garmin PDAs & Smartphones G1000 User Manual

190-00498-07  Rev. A

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Each GIA 63/63W Integrated Avionics Unit (IAU) contains a GPS receiver.  Information collected by the 

specified receiver (GPS1 for the #1 IAU or GPS2 for the #2 IAU) may be viewed on the AUX - GPS Status Page.

These GPS sensor annunciations are most often seen after system power-up when one GPS receiver has 

acquired satellites before the other, or in SBAS (Satellite Based Augmentation System) capable systems, one of 
the GPS receivers has not yet acquired an SBAS signal.  While the aircraft is on the ground, the SBAS signal may 
be blocked by obstructions causing one GPS receiver to have difficulty acquiring a good signal.  Also, while 
airborne, turning the aircraft may result in one of the GPS receivers temporarily losing the SBAS signal.

If the sensor annunciation persists, check for a system failure message in the Messages Window on the PFD.  

If no failure message exists, check the GPS Status Page and compare the information for GPS1 and GPS2.  
Discrepancies may indicate a problem.

Use the large FMS Knob on the MFD to select the Auxiliary Page Group (see Section 1.7 for information on 
navigating MFD page groups).

Use the small FMS Knob to select GPS Status Page.

Use the FMS Knob to select the AUX - GPS Status Page.

To change the selected GPS receiver:

Press the desired GPS Softkey.

:

Press the MENU Key.

Use the FMS Knob to highlight the receiver which is not selected and press the ENT Key.