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OK, having issues here. My first Wrangler. I can't get the rear locker to lock in 4 high. Went right by the book, put it in 4H, turn off the traction control, press down on the rear locker switch, icon on dash flashes several times but does not lock. I can go to 4 low and get both axles to lock but not the rear in 4H. What am I not doing?
 

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I can go to 4 low and get both axles to lock but not the rear in 4H.
That's the answer. It's all written in your owners manual.
Hold Traction Control Off button for more then 8 seconds and the Stability Control will turn off.
 

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What model year is your Wrangler?

Jeep has not allowed lockers to engage in 4L...until recently. By design, Gladiator Mojave allows the rear locker to engage in 4H; it is a benefit in desert running. And I have seen reports from 2021+ JL Rubicon owners that they were being allowed to lock their axles in 4H.

Apparently you can customize the settings using a Tazer.

Good luck!
 

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If your Rubicon is enabled to lock in 4H, then you probably need to let the locker wiggle into place.

Try driving slowly forward just a little to see if the locker light stops blinking.
 
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