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2018 Wrangler 2.0 Electrical issues

RBRNKINJL

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LeEtta
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2018 Wrangler Rubicon
Have not had any issues with our 2018 2.0 Wrangler leading up to week before last. Jeep has start/stop and has been working fine. Drove it on Monday for about 30 minutes. Go to start it Thursday, dead as a door nail. Charged it. Wouldn’t start but the wipers came on (they weren’t turned on), instrument cluster acting weird and flashing. Charged battery. Started. Made sure all interior lights were off. Drove for about 30 minutes. Parked it. Dead as a door nail come Sunday. Charged it. Our battery reader showed battery was good. Figured it must be the auxiliary battery. Drive to get aux battery. At first the start stop wasn’t working but after a while, it started working almost like it charged. Parked it. Dead on Monday. Go to replace aux battery but there isn’t one. Thought maybe they didn’t pull the fuse, it’s been pulled. Took battery to get tested it’s good. Just needs a charge. Take it home put it back in. Starts up. Run into town to take aux battery back. Start/stop works so turned it off by the button. Drove it for about an hour. Shutting it off and restarting it a couple of times. Parked it. Started yesterday. Let it run for a minute. Dead again. Took battery out bought a new one fired right up. Ran two days no problems. Go to start today. Instrument cluster acting up again and wipers came on (again not on). Unplugged battery. Any insight? Could it be the software recall they have out?

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RBRNKINJL

RBRNKINJL

New Member
First Name
LeEtta
Joined
Mar 4, 2024
Threads
1
Messages
2
Reaction score
0
Location
Missouri
Vehicle(s)
2018 Wrangler Rubicon
Replace your Z-case fuse in addition to both batteries.
Hi, I was informed that since I have etorque I do not have an auxiliary battery. I will look into the z-fuse. Thank you for your help. I’m a rookie and beyond baffled.
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