Electrical Issues 2018 JL

[Chooser]

I searched for this problem but did not find anything similar.
During the summer of 2024 I started having electrical problems in my 2018 JL. Essentially all the lights on the dashboard would come on, vehicle would start but could not get it out of park, occasionally while driving power steering would turn off, windshield wipers wound come on, would disconnect transmission. After dropping Jeep off at dealership for the third time this past July they "identified" the issue as a bad antiskid module. My issue is part has been back ordered since July and new delivery date is no late February. What to do?
Help...

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[hoch]

I hate even linking this channel but this guy went through issues recently.

 

[Chooser]

Thanks for video, these gremlins are annoying. Anyone familiar with the antiskid module being backordered for 7 months?

 

[uffdaracer]

Thanks for video, these gremlins are annoying. Anyone familiar with the antiskid module being backordered for 7 months?

I have the same Jeep with an almost identical symptom. One day it wouldn't start then the dash gauges went nuts. Turns out my 2 year old battery was putting out 8.6volts. The culprit--- the negative battery clamp bolt was tight, the clamp completely closed but not tight on the post. I could wiggle the clamp by hand and pull it off. seems as though the clamp metal is too soft to firmly grip the post. So over time the battery was slowly being drained because of the loose connection until it wouldn't start. The replacement negative clamp I ordered on line has the vertical nut for tightening like the positive post has. Don't know why they didn't do that on the negative post at the factory--- probably because it saved 50 cents!

 

[Old Dogger]

Sounds like a Battery issue to me.

 

[uffdaracer]

Well --- I put it on the 15 amp charger and it took all night to charge. That implies lots of remaining capacity.

 

[SmokyMtnsJeepGirl]

Sounds like a Battery issue to me.

My husband just had similar issues in his 2012 JKU. I know his is a much older Jeep, but all of the problems you are having were the same problems he was having. Turned out it was the battery - specifically with the left side of the battery. I have no idea about the names of parts, etc - lol. All I know is the battery was replaced and all was back to normal!

 

[Chooser]

Again, thanks everyone. Batteries have been replaced, dealership is confident antiskid module is cause. It's just been almost seven months waiting for a the part.

 

[Heimkehr]

I put it on the 15 amp charger and it took all night to charge. That implies lots of remaining capacity.

I think you have that backwards. A battery that requires an overnight charge to reach (restore) full capacity, via a charger with a decently robust amperage rating, might be nearing the end of its practical service life.

 

[uffdaracer]

I think you have that backwards. A battery that requires an overnight charge to reach (restore) full capacity, via a charger with a decently robust amperage rating, might be nearing the end of its practical service life.

Duly noted. I'll check into that.

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