EV Battery needs replacement

[Roger Garrett]

Before I purchased my 2023 Sahara 4xe, I read a lot about the potential failure of the high voltage battery. I purchased the extended warranty through the dealership....the best they offered. Sure enough, at 52,000 miles, without experiencing a single problem with this vehicle for nearly 3 years, it dropped me in a parking lot 50 miles from home. Charging system requires service message, a picture of an engine, and it wouldnt start. I eventually got it to start......either by accidentally turning off the regenerative braking option, or the Jeep did it on its own. I managed to get home, took it to the dealer the next day, and they said it is the EV battery (actually the high voltage, HV battery), and they gave me a loaner vehicle (nice bronco) and said they would contact me when the Jeep is ready. They estimated a week for delivery of the battery. They told me the part number is slightly different than my vehicle, so perhaps an improved version? They said they've dine a lot of these battery replacements.

Bullet dodged, or am I in for a dubious ride?

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[The Last Cowboy]

There was an update to the part. If it takes only a week consider yourself very fortunate. There are people here who have been waiting months.

 

[LAM]

Before I purchased my 2023 Sahara 4xe, I read a lot about the potential failure of the high voltage battery. I purchased the extended warranty through the dealership....the best they offered. Sure enough, at 52,000 miles, without experiencing a single problem with this vehicle for nearly 3 years, it dropped me in a parking lot 50 miles from home. Charging system requires service message, a picture of an engine, and it wouldnt start. I eventually got it to start......either by accidentally turning off the regenerative braking option, or the Jeep did it on its own. I managed to get home, took it to the dealer the next day, and they said it is the EV battery (actually the high voltage, HV battery), and they gave me a loaner vehicle (nice bronco) and said they would contact me when the Jeep is ready. They estimated a week for delivery of the battery. They told me the part number is slightly different than my vehicle, so perhaps an improved version? They said they've dine a lot of these battery replacements.

Bullet dodged, or am I in for a dubious ride?

For the record has it had the latest 68c recall?

 

[Andy@AAV]

One week? I’m supposed to get mine back this Monday. That’s 10 weeks to the day I dropped it off.

I do really like my 4xe though. This is the only issue it’s had (although it’s a big one). I’m optimistic on keeping it for a few more years.

edit: My HV battery failed one week after getting the 68c

 

[Roger Garrett]

For the record has it had the latest 68c recall?

Ive done both recalls. Last one was completed this past January.

 

[BXFXJeep]

Got mine back a month ago, it took 60 days for the battery replacement.

Last week it threw the P2E46, they topped up the coolant I guess.

It works perfectly for me so far, people are reporting performance issues after the 68C supposedly in warmer places, it's still cool here, below 40F.

 

[Ol’ Timey Manual SWB Guy]

I’m under the lifetime unlimited warranty. I don’t want to assume you are too, but it’s probable.

As such, I don’t really care how many fresh batteries they stick into this rolling flashlight between now and the year 2056 or whatever.

 

[BXFXJeep]

The lifetime warranty comes to an end when cost of the battery replacement for Stellantis exceed the value of the 4xe, at that point Stellantis will give you a sock of quarters for the 4xe, and call it the end of the day.

Hopefully I can get 10-12 years service from mine.

 

[TrentYoung]

Before I purchased my 2023 Sahara 4xe, I read a lot about the potential failure of the high voltage battery. I purchased the extended warranty through the dealership....the best they offered. Sure enough, at 52,000 miles, without experiencing a single problem with this vehicle for nearly 3 years, it dropped me in a parking lot 50 miles from home. Charging system requires service message, a picture of an engine, and it wouldnt start. I eventually got it to start......either by accidentally turning off the regenerative braking option, or the Jeep did it on its own. I managed to get home, took it to the dealer the next day, and they said it is the EV battery (actually the high voltage, HV battery), and they gave me a loaner vehicle (nice bronco) and said they would contact me when the Jeep is ready. They estimated a week for delivery of the battery. They told me the part number is slightly different than my vehicle, so perhaps an improved version? They said they've dine a lot of these battery replacements.

Bullet dodged, or am I in for a dubious ride?

Something seriously wrong with them putting in a new battery.
1. Unless you live right next dooe to the factory you are not going to get it in a week. Waiting list is 4 to 6 weeks.
2. There is no "new" part number for the battery. It is just th same battery.
3. You need a new battery "if" you fail the 68C recall
4. Turning off the "Max Regen" has nothing to do with the ability to start your Jeep.
5. That year Jeep has a 10 Year 100,000 mile warranty. If the battery recall necessitates a new battery then it will be warrantied for life
6. Find a different dealer. They are lying to you....

 

[BXFXJeep]

When the HV battery fails the behaviour seems weird. From what I've seen people say in the past, some say the 4xe disables the max Regen, and some other hybrid functions. I think they call it isolating the HV battery.

When my 4xe HV battery failed it started by firing up the gas engine, then I drove it home a mile away.

I tried starting it the next morning at 8am it wouldn't start.

A few hours later when the tow truck showed up it started up the gas engine, seems like it might have run for a bit, how long not sure.

I didn't take a picture when it started up when the tow truck came.

All in all, mine is a city vehicle, I can deal with some downtime with a rental, just happy I have it back, I just hate buying gas for a non Wrangler rental, I don't mind buying gas to drive a Wrangler, but to buy gas for a non Wrangler, is adding insult to injury.

This is when it initially failed the night of January 19 - 7:33pm

Next morning January 20 - 8am

 

[rickinAZ]

I’m under the lifetime unlimited warranty. I don’t want to assume you are too, but it’s probable.

As such, I don’t really care how many fresh batteries they stick into this rolling flashlight between now and the year 2056 or whatever.

I bought a new 2008 Jeep JK that came with a lifetime powertrain warranty—listed right on the Monroney as a one-year-only offer. Six years later, it needed a new transmission. That’s when I learned the warranty required a dealer inspection at the five-year mark. The salesman never mentioned it, and I either missed or overlooked any reminder (hard not to, given how much junk mail Jeep sends). Claim denied.

Salt in the wound: the Jeep had been at the dealer for an oil change just a week before the five-year anniversary. That visit didn’t count, and the dealer didn’t flag or perform the required inspection.

If you’ve got a lifetime warranty, read the fine print—or they’ll get you on a technicality.

 

[BXFXJeep]

I bought a new 2008 Jeep JK that came with a lifetime powertrain warranty—listed right on the Monroney as a one-year-only offer. Six years later, it needed a new transmission. That’s when I learned the warranty required a dealer inspection at the five-year mark. The salesman never mentioned it, and I either missed or overlooked any reminder (hard not to, given how much junk mail Jeep sends). Claim denied.

Salt in the wound: the Jeep had been at the dealer for an oil change just a week before the five-year anniversary. That visit didn’t count, and the dealer didn’t flag or perform the required inspection.

If you’ve got a lifetime warranty, read the fine print—or they’ll get you on a technicality.

The lifetime on this battery is pretty straight forward, once it throws the specific codes, it should be replaced no questions.

This battery problem is isolated to the battery itself which has a manufacturing defect.

 

[Ol’ Timey Manual SWB Guy]

Yeah, maybe. But PHEVs that cannot go into EV mode are inherently bigger polluters than their ICE cousins. That means the EPA, NHTSA, CARB, etc. have standing.

 

[Roger Garrett]

I’m under the lifetime unlimited warranty. I don’t want to assume you are too, but it’s probable.

As such, I don’t really care how many fresh batteries they stick into this rolling flashlight between now and the year 2056 or whatever.

They told me I am u Der the lifetime warranty as well.

Something seriously wrong with them putting in a new battery.
1. Unless you live right next dooe to the factory you are not going to get it in a week. Waiting list is 4 to 6 weeks.
2. There is no "new" part number for the battery. It is just th same battery.
3. You need a new battery "if" you fail the 68C recall
4. Turning off the "Max Regen" has nothing to do with the ability to start your Jeep.
5. That year Jeep has a 10 Year 100,000 mile warranty. If the battery recall necessitates a new battery then it will be warrantied for life
6. Find a different dealer. They are lying to you....

Thus is, perhaps, one of the most reputable dealers in Illinois. You are very quick to assume, without knowing what we discussed after their diagnosis, that they are lying to me.

Explain why there is something wrong with them putting in a new battery if they have determined that the one in there has to be replaced......based on technical diagnosis? This is what warranties are for.

I didnt say that I turned off the regerantive braking function, I noted that perhaps I did it accidentally, or the vehicle did it through an internal process. I cerainly didn't say this is what caused it to start......this was just the order of events. You assume too many things and are quick to state someone is either wrong or lying.

They stated that the part number for the new battery is slightly different......more letters/numbers at the end of the number than the original part. They feel this suggests it has been altered from the one that was originally in my vehicle. I have no reason to distrust them.....I've known them for three year. I don't know know YOU however.

There is a ten year 100,000 mile warranty on the battery, not the entire Jeep, which is 3/36,000. The battery now has a lifetime warranty on it, which they are honoring. Your information is not only incorrect, it appears to be based on someone else's post, not mine.

I guess we'll find out if they have a battery in a week or not. I'm just reporting what I was told when I asked.

Your post is somewhat unhinged.

 

[Roger Garrett]

Honestly… probably a little of both. Good news is you’re still under the HV battery warranty, so this should be more annoyance than financial disaster right now. The fact they’ve done a bunch of them and already have a replacement path usually means it’s a known issue, not some weird one off mystery. If the updated part number is a revised pack/version, that’s usually a good sign.
Big question is long term confidence. Some people get the new pack and never have another issue, others stay nervous because once the trust is shaken it’s hard to ignore. For now, if they replace it properly and everything checks out, I’d call that more bullet dodged than doomed… but I’d definitely keep that extended warranty and all paperwork. Basically: frustrating, but this isn’t automatically the start of endless problems.

Thanks for your thoughtful reply. Fingers crossed.
Thank

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