Here is the process to reset your NVRAM settings:

  1. Write down your autopilot gain settings
  2. CHECK -> MAINT -> ADMIN -> Hold CALIBRATION
  3. SELECT into Admin Settings
  4. NEXT down to Administrator Mode
  5. ADJUST the number to 1010
  6. NEXT down to Set Clock NVRAM Defaults
  7. SELECT to RESET
  8. PREV to Administrator Mode
  9. ADJUST the number to 1011
  10. SELECT to clear admin mode (Remaining in Admin mode is unsafe. All sorts of things happen without user interaction)
  11. RETURN to EFIS mode
  12. Re-enter your autopilot gain settings