What does RFA 2 battery low mean on my 2003 GMC Yukon XL?

Question

I have a 2003 GMC Yukon XL and on the instrument panel when I start my engine an err-code reads RFA 2 Battery Low? What does that mean?

Answer 1

RFA = Remote Frequency Actuation. The code is triggered when the key fob remote battery voltage is low. Replacing the key fob battery usually takes care of the problem.

https://www.autocodes.com/glossary/346/rfa.html

Answer 2

the battery voltage in your remote is low, replace the battery in the remote.