Advanced Safety System Errors

[nU7OuxIx]

I have a 2025 JLURX with the advanced safety system. Had the jeep for 3 months and had the windshield replaced a few months ago. The Adaptive Cruise Control has been working fine since, and safelite recalibrated the system after the installation.

Had a strange thing happen yesterday where I was parked in direct sunlight. The windshield was a bit splattered with bugs. Upon starting, I had the wipers go off once (mist mode), but I didn't hit anything. After that, the ESC (Electronic Stability Control) light didn't go off (was ESC, not ESC OFF), the Service Forward Collision Warning light stayed lit, the Service Adaptive Cruise Control Warning Light stayed on, and the Cruise Control Fault Warning Light was all lit up. There were no weird noises from ESC being activated, just the light was on.

Drove it for about an hour and those lights still lit. Turned the Jeep off for about a half hour and restarted. No lights were on and ACC worked fine.

My old jeep's ACC did something like this when I was driving in direct sun, so I figured it was something like that. But the ESC light was weird, as I can't see how it would be related to the collision system. To rule things out, I pushed all the fuses down when I got the jeep. I also just finished a semi mild offroad trip for the previous couple of days that just saw lots of dust, some mud, and some rocky hill climbs, but nothing like rock walls....just embedded larger rocks that you could pick up and move with your hands.

Is there something I should watch out for? Check or keep an eye on? Just chalk it up to a fluke?

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[Mifsuud]

You do not need to calibrate the sensors after replacing a windshield. They are separate pieces due to the fold down nature of the windshield. I'm pretty sure Safelite, and others, do this for additional insurance billing.

Most likely the bug juice haze and direct sun probably irritated the sensors. Just like cameras they hate direct sunlight. Then your situation diffused the sunlight to an even bigger area blinding the sensors. So it wigged out. Not sure how the ESC would be impacted by this unless it freaked from everything else being janky.

 

[nU7OuxIx]

Most likely the bug juice haze and direct sun probably irritated the sensors. Just like cameras they hate direct sunlight. Then your situation diffused the sunlight to an even bigger area blinding the sensors. So it wigged out. Not sure how the ESC would be impacted by this unless it freaked from everything else being janky.

That's kind of what I was thinking as well. My old Wrangler did something similar when I washed the windshield in the sun while driving. Interesting, the manual says that a message will pop up showing 'Wipe front radar sensor in front of vehicle' when there's poor visibility. The message on mine was definitely 'service the system' instead of wiping it. I also wasn't washing the window, but maybe that bug juice had something to do with it.

Also interesting, I got an email from Jeep today that said a warning was triggered and to schedule service. I *could* make an appointment and take it in. All the dealers near me are not great and I know if I do, they will be like "Oh, the lights not on now, you are good".

The Electronic Stability Warning is a mystery though. I've heard that mud near the sensors could trigger it. While I was off pavement and hit *some* mud, there was much more dust than mud. Very minimal mud.

 

[nU7OuxIx]

Quick update. I pulled codes with jscan and had the following:

C0063-9A: yaw rate sensor
U0415-00: invalid data received from abs control module "a".
C227-00: abs disabled ecu
U0429-00: implausible data received from steering column control module
U0212-00: lost communication with steering column control module
U0418: implausible data received from brake system control module 1
B15a1-00: media port 1 connection

So far, no lights or errors since the one yesterday and everything seems to be working OK. A google search looks like there may be a pinch point in the steering wheel but I have no clue. I tried looking around the jeep, under it, under the hood, where the gas pedal is, behind the glovebox. Nothing seems to be sticking out as weird or worn wiring.

Hoping it's nothing but it is a concern. We do use the jeep as intended, and some of the areas where we go to are VERY remote. We don't have any trips planned until next year so hopefully it's a nothingburger or will pop up again soon.

 

[Murphydog]

People have reporting similar behavior when the 12 volt battery has low voltage. I experienced this in my 2021 when my dash camera ran the battery down.

 

[nU7OuxIx]

People have reporting similar behavior when the 12 volt battery has low voltage. I experienced this in my 2021 when my dash camera ran the battery down.

Thank you. I've seen similar things and it crossed my mind. The jeep was built from the factory and I just picked it up in July...so while it's something to check and hope this is it, I don't know...

I will say that I drove it yesterday for a solid hour before this happened. I hoped the battery would had fully charged during that time but who knows. I also have a minipc that runs off of 12v that I accidentally left on overnight. The minipc runs off an anker cigarette lighter rated at 167 watts but the minipc pulls much less than that. On that minipc, I have a voltage protector that cuts off the minipc after the battery hits 12.1v. I know this works because it's happened on my old jeep and cut the power to prevent further discharge. I also have a dashcam that uses minimal power and never had any issues with it. The dashcam also has a battery cutoff that I think I have set to 12.4v.

I'm going to keep an eye on this and hope that it's a battery issue related to the minipc being left on. I would think the issue would appear at first start in the morning, but it really happened the third start of the day. But if the battery was already low, maybe it just at that point. Something that gives me hope is that the codes are all over the place. It's not just one thing, it's ABS, ESC, and the advanced warning system. Usually when the battery is low/dies it seems like things start lighting up like a christmas tree.

Thank you for this though as it's something to keep an eye on. Totally forgot about the minipc being left on overnight.

 

[nU7OuxIx]

Knock on wood, but I think Murphydog may be onto something.

I took a look at the jeep today. My computer I talked about is plugged into voltage disconnect module. The module kills voltage at 12.1v. I left the computer on overnight, and I know it pulls a good amount of electricity. I'm guessing (hoping) that the voltage dipped down to 12.1v and then the two starts plus driving for a bit didn't allow it to charge all the way.

It's definitely something to keep my eyes on. But the more I see of it the more I think it may had been the problem.

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