CEL after low battery voltage, sub zero temp

[GobiCoin]

The weather has been below 0 in the NorthEast the past few days. Last night, on my way back home on the freeway, my battery went from 14.3 V to 11.6 V in a matter of a 30 sec and the CEL came on. I was able to drive all the way home without issues. This morning, the car cranked with no issues and the battery went back to 14.7 V at idle and 14.5 V while freeway driving. However, the CEL light is still on. Does anyone know if it's normal for the CEL to stay on and clear on its own or should I get the code scanned? What are the chances there's a bigger issue? The Jeep is only 6 months old.

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[garyji]

At least pull the code. It wouldn't be unheard of to have a bad battery even when pretty new. Especially at those temps where you are. Which engine? ESS or eTorque?

G.

 

[GobiCoin]

At least pull the code. It wouldn't be unheard of to have a bad battery even when pretty new. Especially at those temps where you are. Which engine? ESS or eTorque?

G.

v6 etorque. Would i potentially cause more damage by waiting a few days to take it to the dealership?

 

[garyji]

My opinion is that it wouldn't hurt anything to wait. However, most auto parts places could pull the code for you. At least you would know what you're dealing with. Have you made sure all your fuses are seated? With the eTorque we can rule out the "little aux battery".

G.

 

[Reinen]

It probably is something that can wait but we don't know the CEL light code. There is a minor possibility of it being something that shouldn't wait.

I would get an engine code reader and keep it in the Jeep. Even if there is zero possibility of you fixing it you'll at least know whether it is something that can wait, if it's possible to limp along, or if you need a tow to prevent it from getting worse.

 

[GobiCoin]

My opinion is that it wouldn't hurt anything to wait. However, most auto parts places could pull the code for you. At least you would know what you're dealing with. Have you made sure all your fuses are seated? With the eTorque we can rule out the "little aux battery".

G.

Good call on checking the fuses. Will so that too

 

[GobiCoin]

Update:

It’s been in the dealership for over a week. They have determined that the issue is with the power pack on my v6 etorque. I wonder if this is a similar issue to the recent recall on the power pack for the 4xEs

 

[garyji]

Glad they found it. First one I've heard of.

G.

 

[GobiCoin]

Update: 1/10/23

Jeep is still in the dealership service center, and a STAR case has been opened. Very frustrating, because the engineers are making the dealership run a bunch of tests before they can approve the power pack to be replaced.

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