Today in the shop, we have a 2018 JL Rubicon Unlimited that needs a couple of upgrades. This impressive setup features a three and a half inch lift from Teraflex and 35-inch tires. Despite its amazing specs, there’s a dashboard light indicating that the auto start stop function isn’t working.
While I wouldn’t be overly concerned about the auto start stop feature personally, I want to ensure everything is in proper working condition. I’ll show you some troubleshooting steps you can take and how to disable the auto start stop function if desired. This issue isn’t uncommon, and there are simple solutions to address it.
Troubleshooting the Auto Start Stop Issue
With only 15,000 miles on the vehicle, it’s likely that it may have sat unused for a period, causing the auxiliary battery to drain. The first thing to check is the connectors underneath the vehicle for the auto start stop function. There are two connectors, and if either of them is disconnected, the auto start stop won’t work. Additionally, a faulty auxiliary battery can also cause this issue.
Upon inspecting the auxiliary battery, it appeared to be the original one, suggesting it might need replacement. After getting a new battery and installing it, I ran into a power steering issue. Upon further investigation, I found that the problem was with a fuse in the fuse panel, which I replaced, resolving both the power steering and the auto start stop problem.
Fixing the Auto Start Stop Function
I documented the entire process of troubleshooting and fixing the auto start stop function in the Jeep. The repair involved some simple steps, including removing the fuse box, replacing the auxiliary battery, and fixing the fuse in the panel. The video also features a walk-around of the 2018 JL Rubicon Unlimited, showcasing its impressive features and capabilities.
Technology in the JL surpasses the previous JK model, and while it brings many advancements, it also introduces new potential failure points. In the next video, I’ll share a repair for a common issue with the JK’s sway bar disconnect and discuss upgrades to address it.
Conclusion
The troubleshooting process for the auto start stop issue in the 2018 JL Rubicon Unlimited proved to be an example of how modern vehicle technology can lead to unique challenges. Taking a step back, it’s exciting to witness the innovations in the JL model, but it’s also essential to address potential weak points. Through simple repairs and upgrades, it’s possible to overcome these challenges and ensure the vehicle operates at its best.
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What is the issue with the 2018 JL Rubicon Unlimited in the shop?
The issue is that there is a light on the dash that indicates that the auto start stop function is not currently working.
What are the potential causes for the auto start stop light to be on?
The potential causes for the auto start stop light to be on include a disconnected connector for the auto start stop function, a faulty auxiliary battery, or a malfunctioning fuse in the fuse panel.
How was the issue with the auto start stop function resolved?
The issue was resolved by replacing the auxiliary battery and the malfunctioning fuse in the fuse panel.
What are some other repairs and upgrades mentioned in the video?
Other repairs and upgrades mentioned in the video include repairing the sway bar disconnect, considering upgrades from Evo manufacturing, and discussing the differences between the 2018 JL and JK models.
What are the key features of the 2018 JL Rubicon Unlimited?
The 2018 JL Rubicon Unlimited features a three and a half inch lift from Teraflex, 35-inch tires, Falcon shocks, aftermarket bumper, Smittybilt 10,000-pound winch, and rigid lights.