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Electrical Issues and Resolutions on Gladiators

JDTATTOOING

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Jonatha
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2020 Jeep Gladiator
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I wanted to share my issues and what was done to solve the problems with my 2020 gladiator. There is a lot of threads on the electrical issues, and a lot of possible solutions, here is my experience...

After about 85000km the vehicle started to experience an electrical issue where all of the sensors and functions would shut down while driving. The cluster would stop reading out speed and RPM, the wipers would turn on sporadically and the power steering would stop working. When I would stop the Jeep and start up, I was unable to shift from park getting a service shifter alarm on the cluster. When I would turn on the AC this would fix it enough for me to supercede the electrical issue, and drive normally.
This problem was resolved by swapping the electrical canbus module behind the dash on the passenger side of the Jeep. Not the big harness behind the fender.

After a few month's my start stop was not working, although I hate the feature, I still don't want any electrical related issues to be present. Swapping the AUX battery resolved this issue.

Again a few months later the vehicle stated having charging issues. Though it was the main battery, so swapped it out. No change. Did a recharge test and the alternator was only charging at 11.7v. Should be 13-14. Swapped the alternator. All good.

Start stop function was not working after this, saying it needed service. I took the IBS (intelligence battery sensor) off the nagative terminal-- little black module attached to the post, and let it sit for about 10 minutes. Put the negative back together, and this resolved the start stop issue.

Recently started having a clunking or clicking noise as I would accelerate and slow down. It was related to the wheels or drive train and motion. Traced it to a worn ubolt at the passenger side front wheel.

Currently running problem free. Here's hoping that was everything it had to throw at me. Hopefully this helps anyone experiencing the same issues troubleshoot and resolve more effectively.

PS I am not a mechanic, I love to wrench on my vehicles, so terminology may not be 100%.
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yoda13

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I’ve disconnected the aux battery, replaced the main battery, and replaced the third tail light in mine.
 
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JDTATTOOING

New Member
First Name
Jonatha
Joined
Oct 1, 2024
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Location
Cambridge, Ontario, Canada
Vehicle(s)
2020 Jeep Gladiator
Occupation
Plant Manager
What did the third tail light resolve? I haven't heard or seen this one yet!
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