JK Oman

I have 2012 jeep wrangler sahara auto trans, the 4wd light not getting off when i shifting from 4H to 2wd. and i disconnect the battery off and the problem is the same.

TrailBadger

Possible Solution: The Jeep's four wheel drive vacuum switch needs to be replaced.

ronjenx

2012s have a vacuum switch?

TrailBadger

Note: I said "Possible Solution"

ronjenx

I saw that, but why send him in the wrong direction?

JK Oman,

Is the lever floppy as if disconnected?
Can you tell if the t-case is shifting in and out of 4wd?

TrailBadger

Never having a 2012, I will admit I don't know everything, but having encountered the dreaded 4wd light left on, I was forced to have the switch replace, thus how I reached my conclusion. In other words, if you have a solution, then why find fault in my comments when you clearly could have informed the Oper the "correct" answer and avoided my comment all together.

jedg

With ronjenx... I'm betting the problem is with your transfer case linkage. If, as ronjenx said, the shifter feels loose, then this might be of use to you.

https://www.jk-forum.com/how-tos/a/j...linkage-407883

karls10jk

If it isn't the linkage then it can be the switch on the top of the case. Trail Badger has no idea what he's talking about, ignite the post. The 4wd switch sits on top of the tcase and is just a threaded switch. There's a single connector on top and it threads out. Advance auto had one when I replaced it on my TJ (same spot and style of switch).

resharp001

Karl - looking back at some threads like this one, it's so obvious. I can't believe I didn't put two and two together sooner.

Sixty4x4

My guess, as others have said, is the Transfer Case switch located on the top of the case and has 2 wires and a plug going to it. Bit of a bitch to get at but if it were me I would drop the rear cross member a bit (2 ") with a couple of mechanical scissor jacks. It unscrews with a wrench unsure of size though. Be careful and don't drop the cross member and tranny and TCase etc. Passenger side won't drop much as it has the tank skid plate attached but driver side should give you the needed clearance.