Piper ARCHER II Pilot Operating Handbook page 246

SECTION 2 — LIMITATIONS
This AFMS is applicable to the software versions shown below:
Software Version
Software Item (or later FAA Approved version for this STC)
G5 Software Version 5.70
G3X Software Version 8.00
The maximum fuel imbalance with the autopilot engaged is 10 gallons.
Minimum 65 KIAS (75 MPH)
Maximum 140 KIAS (160 MPH)
190-02291-07 Rev. 5 7
AFMS — GFC 500 Autopilot in Piper PA-28 Series
Page 2~1