Can You Lock Rear Differential in 4High?

[atxatxatx]

Yup. Tazer does it

Yes indeed, thanks.
I was wondering if Jscan has this option

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[rnovia80]

I have a 2021 Rubicon. This works. Just tried it. The key is holding the ESC button until ESC OFF displays on the screen. Then hit the rear locker and it locks.

Thanks for the info.

so you got the 2021 rubicon gladiator to lock the rear in 4 Hi ?

 

[Druidirvin]

I have a 2021 Jeep rubicon diesel and I can lock the rear in 4H. Just like one of the guys said. You have to activate the off road +. Then hold ESC Bottom for about 5 sec until the stabilizer is off ( it will let you know in the screen ) then it will let you lock the rear axle in 4H. It makes a HUGE difference in the dunes.

 

[Uparms]

For some reason I was u DWR the impression that the rear differential could be locked in 4High. Tried it while on the beach this weekend and it said I need to be in 4Low. Is there a way to lock rear in 4High? Educate a novice, please ...

Good question for some, I own an unlocked Sport so ??????

But I have to ask, do you really need it locked on the surf? After 20 years on the surf with 2 unlocked TJs, I never saw the need for locker. Air down and enjoy. Damn TJs would go half or whole mile down the beach in 2WD with no problem until you came to a stop (you could feel it sink when you stopped). Then you just put it in 4WD High and finish the ride (fish)! 17-20 PSI everytime.

Surf fishing is always best March to June and Sept to Dec, when all the rich non-fishing posers are off the beach

 

[MrJeep]

Good question for some, I own an unlocked Sport so ??????

But I have to ask, do you really need it locked on the surf? After 20 years on the surf with 2 unlocked TJs, I never saw the need for locker. Air down and enjoy. Damn TJs would go half or whole mile down the beach in 2WD with no problem until you came to a stop (you could feel it sink when you stopped). Then you just put it in 4WD High and finish the ride (fish)! 17-20 PSI everytime.

Surf fishing is always best March to June and Sept to Dec, when all the rich non-fishing posers are off the beach

Everything you say is true and it does make a huge difference in sand. Yes/and

 

[Minkypozo]

Sorry for the late reply but I had the same issue and was able to google your thread and find useful info. So here is the solution I have from the dealer and it works fine.

he explains the proper sequence and talks about an update if it doesn’t work.

also the Mopar jeep videos aren’t helpful at all since the are a spoken version of the manual, which doesn’t explain the exact sequence and tips.

 

[Eric Kern]

Sorry for the late reply but I had the same issue and was able to google your thread and find useful info. So here is the solution I have from the dealer and it works fine.

he explains the proper sequence and talks about an update if it doesn’t work.

also the Mopar jeep videos aren’t helpful at all since the are a spoken version of the manual, which doesn’t explain the exact sequence and tips.

Minky, are you driving a 2020 Rubi? Or 2021?

 

[jac04]

So here is the solution I have from the dealer and it works fine.

Thanks for posting this. I previously could not get my rear locker to engage in 4HI on my 2021 Mojave.

I just tried the steps as shown in the video and the locker engaged no problem.

 

[Minkypozo]

Minky, are you driving a 2020 Rubi? Or 2021?

2021 sand runner

 

[HighTork]

New 2021 Rubicon JT diesel here. I followed the steps, 4 Hi, Off-road+, then ESC off by holding traction button for a few secs. Rear locker locked right in. Thanks for this thread, I had no clue the Rubi's were updated to do this.

 

[Eric Kern]

Hi smlobx,
I apologize, but that is all the information available at this time. Once it is released, I anticipate your question will be answered.
Alex
Jeep Social Care Specialist

@JeepCares it has now been released, so is their an answer to the question (is Jeep making this “back dateable”?) In other words, can I go to the dealer and get an update for my 2020 to allow me to unlock my rear in 4hi?

 

[atxatxatx]

@JeepCares it has now been released, so is their an answer to the question (is Jeep making this “back dateable”?) In other words, can I go to the dealer and get an update for my 2020 to allow me to unlock my rear in 4hi?

2nd that, is there a TSB number or something ?

 

[Dryfly24]

@JeepCares it has now been released, so is their an answer to the question (is Jeep making this “back dateable”?) In other words, can I go to the dealer and get an update for my 2020 to allow me to unlock my rear in 4hi?

2nd that, is there a TSB number or something ?

Another interested 2020 Rubi owner here. How about it @JeepCares?

 

[legacy_etu]

New 2021 Rubicon JT diesel here. I followed the steps, 4 Hi, Off-road+, then ESC off by holding traction button for a few secs. Rear locker locked right in. Thanks for this thread, I had no clue the Rubi's were updated to do this.

Jeep should make up laminated cards with this sequence and put them in the glovebox. Jeep, are you listening? much more useful then the airbag placard that gets tied to the glovebox for delivery to the first owner. Actually, even better would be a sticker affixed to the inside door of the glovebox with this sequence. This way it can’t get lost.

This seems overly complicated BTW.

 

[JeepCares]

@JeepCares it has now been released, so is their an answer to the question (is Jeep making this “back dateable”?) In other words, can I go to the dealer and get an update for my 2020 to allow me to unlock my rear in 4hi?

Another interested 2020 Rubi owner here. How about it @JeepCares?

Thanks for the tag. We recommend speaking directly with your dealer in regard to this inquiry.

Kate
Jeep Cares

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