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Discussion Starter #1
First-time Chrysler buyer, first-time minivan buyer. Took delivery of a 2021 PacHY Limited last week. Was super happy with it and took the fam on a much-needed vacay at a location about 100 miles from home.

Left home on a full charge. Of course we were running on hybrid/gas by the time we arrived.

Charged the car the next day at a Chargepoint L2 charger. Left the charger plugged in for about an hour after the van was fully charged. Got a message from both the uconnect and Chargepoint apps saying charging stopped. No big deal.

So the fam and I hop in the van. Naturally I push the start button but was unable to start the car. The error message on the dash says "Hood open. Unable to to charge battery or condition battery / cabin". Naturally then I checked the hood, in addition to the charger cover and all doors to make sure everything is fully closed. The car then gave the same error a couple of times before starting up. The check engine light is now on, but wasn't before.

Later on the same day, I try to drive the car but it refused to start. The van gave the same error message AND a new error message "Service electronic throttle control".

Next day, our last day of the trip, I tried starting up the van. It started up again, but the check engine light is still on. I didn't want to risk the 100 mile drive back, so had AAA tow the car back to the dealership and took a shuttle home.

Really disappointed as the van is otherwise pretty great. Hopefully this issue is resolvable and the van is fixable.

Wanted to see if anyone else went through a similar ordeal.
 

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Discussion Starter #3
Pretty worried about the car randomly won't start again. Anyway we'll see what the dealer says.

If others have similar experience please chime in.
 

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Discussion Starter #4
FWIW - the first screenshot is from the first time the car won't start. The second screenshot is the aforementioned "service electronic throttle control" message.
46075
46076
 

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Seems like I remember another user that stated this problem. They said the electronic throttle control had to be replaced because it was cracked.
 

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Discussion Starter #6
Car back at the dealer now.

I’m guessing service is looking into the issue(s) as I just got a “Charging fault” notification via Uconnect.

Can’t believe the car has issues - it only has 270 miles on the odometer!

Will keep updating this thread as I have further info to keep a diary of this incident and for others who may benefit from my experience.
 

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Discussion Starter #7
Got a text from the service advisor indicating that the car shows about 10 "low voltage codes" which the shop foreman suspects was due to the Chargepoint charger. They don't know for sure yet, but they're going to give my car a full charge on the dealer's charger and hold on to it overnight to continue diagnosing.

I asked for further details as to what those low voltage codes are, but he's not sure. It sounds like he's just passing messages from the foreman to me.

Unclear how long the diagnosis would take at this point unfortunately.

I'll continue to provide updates as I have more to share...

In the meantime, if you guys have any experiences with these "low voltage codes" please chime in and share!
 

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2021 hybrid pinnacle Crystal black -1/28 built
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I experienced similar issue (car wont start with engine light on) when i charged my car at a charging station near by. I had to wait for few minutes and it started with no errors. Not sure if pacifica does not like public charging stations :)
 

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Discussion Starter #9
I experienced similar issue (car wont start with engine light on) when i charged my car at a charging station near by. I had to wait for few minutes and it started with no errors. Not sure if pacifica does not like public charging stations :)
Yea that's very strange and also a bit ridiculous. "Hey guys let's create a hybrid vehicle that doesn't play nice with one of the larger charger networks!"... Okay I know that's not what folks had intended and I know my cynicism is taking over a lit due to the frustrating nature of already having issues on a new vehicle.

It'll be hard to trust this van as a family hauler again.
 

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Discussion Starter #10 (Edited)
Got a text from the service advisor indicating that the car shows about 10 "low voltage codes" which the shop foreman suspects was due to the Chargepoint charger. They don't know for sure yet, but they're going to give my car a full charge on the dealer's charger and hold on to it overnight to continue diagnosing.

I asked for further details as to what those low voltage codes are, but he's not sure. It sounds like he's just passing messages from the foreman to me.

Unclear how long the diagnosis would take at this point unfortunately.

I'll continue to provide updates as I have more to share...

In the meantime, if you guys have any experiences with these "low voltage codes" please chime in and share!
Following up.

I'm tracking the vehicle via the Uconnect app (which all owners should set up upon taking delivery, by the way) - it looks like folks are trying to deplete the battery, as I see the battery % going down from 90%+ to 17%. The car has also been driven for 20 some miles, with 8-9 miles of EV range left.

My guess is that they'll try to drain the battery and then charge it up overnight, and see if they can recreate the problem. So I guess that means I won't have the vehicle back tomorrow.

Quick update:

Yes I was correct. The car is now at 1% and they're charging on a L2 charger which will require a bit over 2 hours to fully charge the vehicle. It's 3:15PM in CA now, which means the van would be fully charged by ~5:30PM. Given that, I don't suspect the tech will work on the vehicle anymore today.
 

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Hmmn.... low voltage codes. I wonder if you have a bad 12v battery? Multiple low voltage codes could be multiple modules reporting the low 12v voltage. Looking at your cluster shots, the battery is at 90%+ which is derived from voltage so I doubt the main traction battery is bad (also verified by the car driving for 30mi on battery).
 

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Discussion Starter #12
Hmmn.... low voltage codes. I wonder if you have a bad 12v battery? Multiple low voltage codes could be multiple modules reporting the low 12v voltage. Looking at your cluster shots, the battery is at 90%+ which is derived from voltage so I doubt the main traction battery is bad (also verified by the car driving for 30mi on battery).
Yea I don't know if it's a low voltage issue. Maybe something's lost in translation between the foreman and the service rep. I'll call back tomorrow and ask about what exactly is going on, as it didn't sound like the foreman and the sales rep had a clear grasp of the issues yet.
 

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Discussion Starter #13 (Edited)
Ok. Just picked up the van from the dealer. Service rep said they updated the software. Service invoice indicated that they did a BPCM flash from 05193183ad to 05193183ae. Does anyone have any experience with this flash?

See first screenshot below of the details. 2nd screenshot is of the error codes that the car threw.

I haven't charged the van on a commercial charger yet, so won't know the issue has actually been resolved for sure. But I will try and replicate the scenario whereby I charge the vehicle at a ChargePoint station, unplug it, drive around a bit and plug it back again for until full and leave it plugged in for a bit longer.

Will report back after I've done that.

Service invoice (repair / maintenance was provided free of charge):
46125


Error codes:
46126
 

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Discussion Starter #14
Also going to get an OBDII reader to check if the van is still spitting out these errors even if the CEL / MIL is off.
 

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Guys - by the way, for what it's worth, please see the attached PDF that I found on the web via a quick Google search.

If I'm reading this correctly, the PDF seems to show the latest version of software/parts that you should have. If you scroll to page 185, you'll see that the latest version BPCM software version is 05193183AE (under the New Part Number column) for the '21 PacHY.

Thought this was an interesting find.
 

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Discussion Starter #16
To fellow PacHY owners - can you do me a favor and see if the error light below shows up during start-up and then disappears? I didn't recall seeing this before during the start-up sequence.

46131
 

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2021 Pacifica Pinnacle Hybrid
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Did the dealership provide a loaner?

My wife experienced the same thing on a ~300 mile 21 PacHy Pinnacle and was able to get it restarted after 10 minutes. She was sitting in the parking lot and I activated the horn/lights with SiriusXM app trying to fix a communication error. We haven't seen it since and no public charging usage, only 120v at home. If we see it again, we'll bring it to the dealer and ask them to update the BPCM.
 

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Discussion Starter #18
Did the dealership provide a loaner?

My wife experienced the same thing on a ~300 mile 21 PacHy Pinnacle and was able to get it restarted after 10 minutes. She was sitting in the parking lot and I activated the horn/lights with SiriusXM app trying to fix a communication error. We haven't seen it since and no public charging usage, only 120v at home. If we see it again, we'll bring it to the dealer and ask them to update the BPCM.
No loaner - the car was in the shop for less than 24 hours. Seemed like they did the BPCM flash, cleared the DTC codes, depleted the battery, charged on at L2 charger and left vehicle plugged in overnight.
Unclear to me at the moment whether there are still DTC codes being thrown since my OBD2 reader isn’t here yet, but at least the car seems to be running fine and the CEL isn’t on yet.
 

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Discussion Starter #19
No loaner - the car was in the shop for less than 24 hours. Seemed like they did the BPCM flash, cleared the DTC codes, depleted the battery, charged on at L2 charger and left vehicle plugged in overnight.
Unclear to me at the moment whether there are still DTC codes being thrown since my OBD2 reader isn’t here yet, but at least the car seems to be running fine and the CEL isn’t on yet.
Quick update - today I replicated the sequence leading up to my malfunction. I drove until the battery was depleted and then some, and then charged at a local Chargepoint L2 charger. On purpose, I unplugged the charger, then plugged in again, a sequence which I repeated after another minute - so I plugged and unplugged twice. Then I left the van plugged in to charge until full.

About 3 minutes into the charge, I got a "charging failure" message via the Uconnect app. That was pretty worrisome. So I went back to the van, unplugged and see if I can start the vehicle. The van started up just fine and I didn't see any alerts or warnings from the van or from the charging station. So I kept the van charging.

After two or so hours, the van was charged full. I left the van plugged in for another 20 - 30 minutes on purpose to replicate the situation leading up to the original malfunction. The van started up just fine. It's now at home with the L1 charger.

I'm not entirely convinced yet that the issues / codes were completely resolved even though the vehicle is driving just fine. I'll have to wait for the OBDII reader to show up tomorrow to check for sure. If the OBDII reader shows that the more serious DTC codes are recurring, then I'll know the van is an accident waiting to happen. This should be grounds to declare this vehicle a lemon, since I've already gave the dealer an opportunity to remedy this serious issue that may cause bodily harm, as the vehicle was in the shop earlier this week.

I'll keep ya'll updated. Of course I'm hoping that the issues have been fully resolved, but I'm not holding my breath given what I've read on this forum.

On a side note: how much time have we all wasted in diagnosing a Chrysler product? The value of our time spent has got to represent some percentage of the U.S. GDP!
 

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Discussion Starter #20 (Edited)
Guys - by the way, for what it's worth, please see the attached PDF that I found on the web via a quick Google search.

If I'm reading this correctly, the PDF seems to show the latest version of software/parts that you should have. If you scroll to page 185, you'll see that the latest version BPCM software version is 05193183AE (under the New Part Number column) for the '21 PacHY.

Thought this was an interesting find.
Wanted to also share another file of old vs. new parts for your FCA vehicle.

For PacHY owners, check out page 01262 and do a keyword search for "RC-Y12-21" - looks like there's already a recall AND a TSB (08-048-21) on a HVAC component on a 2021 model car? That's pretty bad...
 

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