CSP 24B56 Front Sensor Fix, Done by dealer but now an issue with my 12v battery?

[CypherBlue]

Hey all,

This past Friday, my dealer sent mobile service to update and resolve the front sensor issue. I did notice he didn't hook up power to the 12v until an hour into the update. It took about 2 hours for it to update. While the front sensor issues seem to be resolved, I have noticed the sensor beeps and cross-traffic alerts seem to be coming from a single lower-quality speaker instead of how they used to through the whole sound system. Also, whenever I park the truck, the center screen displays a message that it is shutting down to save power. Which makes me think the 12v battery is low. I threw a battery charger onto the 12v, which was a bit low. Still, even after fully charging it up, every time I turn it off, I get that system shutting down to save battery message, and it worries me because then I won't get any OTA updates, and I want the SoC update. Could the 12v battery have gone wrong? Any ideas?

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[Adventureboy]

If your mechanic drew down the battery for the updates, you may just need to charge it fully. It will take quite a while on a 4Amp charger, or about an hour driving.

I had to replace my 12v battery in my '23 Lariat already 6 months ago. Have you had the CSP 23B70 done on the Battery Monitoring System (BMS)? That was the cause for many warnings I was getting.

 

[RocketGhost]

Charge it to 100% using your charger, let it sit overnight, and put a multimeter on it and check the voltage. If it won't hold a charge they could have killed the battery, but that seems unlikely unless they ran it all the way down to nothing.

 

[Al_V]

Is the 12v battery covered under the 3 year warranty?

 

[Pioneer74]

Is the 12v battery covered under the 3 year warranty?

Yes.

 

[ThunderSnoww]

Had the CSP 24B56 work done on my '23 Lariat ER today by my local dealer. Now I'm also having 12V battery issues. All four times I've started the truck post-module updates, it's had the "System Off to Save Battery" message on the Sync4a screen. Also, no cabin lights, an empty dashboard, and loud start-up chime before driving. I checked my voltage before and after a 33 minute drive (fourth trip today) and the battery charged by about 0.13V during that time. Anyone know what the 12V battery needs to be to for the BMS to consider things "normal?"

If things don't go back to normal within the next day or two, I'm taking it back in.

 

[MapleMan650]

I’ll jump on this thread too. Same 12V battery issues here too. After a week of commuting 100+ mile round trips, it’s still the same. I can see in the notes from my visit that the battery was tested and passed before the update so I know it was good prior. I’ll make a service appointment and see what they say.

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