Garmin G3X Installation Manual page 648

c) Use the elevator trim switch to input a nose down TRIM command. Verify the elevator trim
switch properly moves for nose down trim. Verify the Pitch servo is properly indicating
NOSE DOWN trim activity.
d) If the elevator trim response is reversed, go to the Auto Configuration page and change the
Pitch Servo Direction to Reverse, then repeat step all of step 7.
190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout
Rev. AA Page 32-53