Periodically, the phone will say Warning Check

Hello - did you put the phone on the charger with new battery and leave it there for 8-12 hours? If so then you may either have the wrong battery or your phone won't accept generic batteries (if it is generic). You can locate your phone model by looking under the base or finding it on this this site. Sometime it is normal to get an error message if you haven't let the battery fully charge. It may say it is charged but still important to leave on charger over night. Good luck:)

The best thing to do is scan the computer for codes. This will give a good idea of what the problem is. There are three options to get codes. 1. A basic OBDII co reader will run you about $50 from your local parts store or even sears. 2. Check with your local parts store to see if they can pull codes for you. Sometimes they will do this for free. DONOT BUY ANYTHING THEY RECOMMEND WITHOUT FIRST DOING SOME RESEARCH! 3. You can bring the vehicle t your local service facility or dealership and have them run a diagnosis. There is usually a set fee for this. Typically it includes pulling the codes and then checking the system to find out the exact problem. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Check the voltage on higher rpm, if it goes ove 14V then theelectrical part on alternator is bad(diod or regler).

no.

hi, to me it sounds like you have got a warning tone switched on then bleeps after every minute, this is a feature on the phone and its just to tell you that you have been on the phone for 1 minute so it helps you work out your charges based on how many times you hear the bleep.
Now it can be turned of you just need to go into the settings and turn the alerts and warning tones off

replace

Did you ever got a solution for this

check and make sure the drive belt is tight on the alternator.

Try to reset the handset from handset menu, maybe the eeprom setting for low battery warning threshold have been ereased . Also check ,if the battery is the oregional battery for the phone.

I have the same problem.... not sure why it happens but in fact the battery has actually been charged. If you open the battery compartment, then unplug the battery and plug it back it will work fine. Quite annoying to have to do this all the time.