Message that say “battery saver mode” and the truck AC did not turn on at all

I took my truck to a key-maker. After all copies where made and the setting where reset to add this two keys as the only administrative keys for the truck, the truck started showing a message that say “battery saver mode” and the truck AC did not turn on at all. (Does turn on like you press the button and no light come up). It seems to me like the AC climate control does not have power but the radio works fine, the 12 volts outputs charge my phone and all the instruments in the cluster work as well with the exemption of a battery light coming up right before turn in on the truck. I took the battery to three different auto part in order to be check and battery was 100% all three times. Also check the alternator and is charging the battery well. I don’t know if the reset had something to do with this. I when back to the key-maker and he reset it again and it still doing the same thing. Call for dealership and they want to charge $180.00 just to run the diagnostic. Does anyone has this same problem?