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Aux switches / battery charging message

I got the same message. Started about two weeks ago when we had like -10 degree weather. Went to start the Jeep and it barely turned over. Now that it has warmed up, the battery seems stronger as Jeep cranks up better. However, I still get that message.

My 392 is two years old so just assumed battery is on last legs. I've read in other forums the stock battery isn't that good.

Does anyone have any recommendations on replacement batteries?
Even if there seem to be problems with them if mine goes I'm getting it replaced under warranty.
 
My April 2021 build still has the original battery. When the weather gets cold I always get the message. I disconnect the battery and top off the charge and it is fine. Happens all winter, as soon as the weather warms up, no more message.
 
I got the ‘Aux Switches Temporarily Unavailable Battery Charging’ indicator today. Happened this morning when I first started the Jeep, then again when I went to go to lunch. The voltage per my Banks iDash, which i find is generally consistently between 13.9V and 14.1V in normal operation, was being erratic and never exceeded 13.5V. Brought it to the dealer this afternoon and they ran a quick test and found the results to be inconclusive. They said they can do a full 3 hour charge which will tell them if a cell is bad or if there is another battery issue, at which time they can replace under warranty. As their ‘diagnostic guy’ is out until
Thursday, have to wait until then for a resolution.
 
I got the ‘Aux Switches Temporarily Unavailable Battery Charging’ indicator today. Happened this morning when I first started the Jeep, then again when I went to go to lunch. The voltage per my Banks iDash, which i find is generally consistently between 13.9V and 14.1V in normal operation, was being erratic and never exceeded 13.5V. Brought it to the dealer this afternoon and they ran a quick test and found the results to be inconclusive. They said they can do a full 3 hour charge which will tell them if a cell is bad or if there is another battery issue, at which time they can replace under warranty. As their ‘diagnostic guy’ is out until
Thursday, have to wait until then for a resolution.
I went through the same garbage with my dealer. The long test said the battery was OK. Long story short got the best battery that Walmart has with a four year warranty and I no longer get the warning message. The new battery has been good for several months now with no issues.
 
I got the ‘Aux Switches Temporarily Unavailable Battery Charging’ indicator today. Happened this morning when I first started the Jeep, then again when I went to go to lunch. The voltage per my Banks iDash, which i find is generally consistently between 13.9V and 14.1V in normal operation, was being erratic and never exceeded 13.5V. Brought it to the dealer this afternoon and they ran a quick test and found the results to be inconclusive. They said they can do a full 3 hour charge which will tell them if a cell is bad or if there is another battery issue, at which time they can replace under warranty. As their ‘diagnostic guy’ is out until
Thursday, have to wait until then for a resolution.
I went through the same, started with that same message, the long test did show a bad cell on mine and replaced it under warranty.
 
I got the ‘Aux Switches Temporarily Unavailable Battery Charging’ indicator today. Happened this morning when I first started the Jeep, then again when I went to go to lunch. The voltage per my Banks iDash, which i find is generally consistently between 13.9V and 14.1V in normal operation, was being erratic and never exceeded 13.5V. Brought it to the dealer this afternoon and they ran a quick test and found the results to be inconclusive. They said they can do a full 3 hour charge which will tell them if a cell is bad or if there is another battery issue, at which time they can replace under warranty. As their ‘diagnostic guy’ is out until
Thursday, have to wait until then for a resolution.
They have one specialized battery "diagnostic guy"? Must be a long, tough training track few have tackled.
 
We just went through this with my wife’s 21. Dealer did the long (3 hr) test and determined battery was bad and replaced under warranty. It was the original battery and she has just over 24k miles.
 
We just went through this with my wife’s 21. Dealer did the long (3 hr) test and determined battery was bad and replaced under warranty. It was the original battery and she has just over 24k miles.
Interesting, I’m at 25k miles. We’ll see what happens, I assume it’ll come back with some sort of issue given the initial test was inconclusive.
 
Most likely your battery is dying. I took mine in last weekend for the same issue. They ran a test and it was at 600 something out of 800 whatever and graded out as bad so they replaced it under warranty. Mine did it for maybe 10-14 days before I took it in. Toward then end I could hear it take a tick longer to crank so that's when I took it in.
Sounds like a battery issue. What voltage readings are you getting when idle?
 
Went to the dealer this morning and they ran the 3 hour recharge and a few other tests. Everything came back normal. They thought some of the connections from my accessories may have been interfering with the battery sensor so they relocated the sensor for me. While I’m skeptical that was the issue, I have not seen the aux switches not available message since. We’ll see if it pops up again in the near term.
 
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