JL Package Protected for 35s

[Carlton_Banks]

I read that the JL will automatically compensate/reprogram for 35 inch tires. Do we know if this is true for larger sizes as well, for example 37-40s?

Previously you needed an AEV Procal or Superchips Flashcal to achieve this. I'm assuming you will still need one to recalculate a regear. If not, that would be great.

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[BillyHW]

I read that the JL will automatically compensate/reprogram for 35 inch tires. Do we know if this is true for larger sizes as well, for example 37-40s?

Previously you needed an AEV Procal or Superchips Flashcal to achieve this. I'm assuming you will still need one to recalculate a regear. If not, that would be great.

I know someone quoted someone from the L.A. auto show that the JL will automatically adjust for 35s, but there's nothing about this feature in the owner's manual.

 

[Carlton_Banks]

It would be a great feature if it recalculated everything itself but probably unlikely.

 

[Schmeegz]

I remember them specifically saying if you slap 35’s on a Rubi. Nothing else is needed. No lift, no fenders, no recalculation.

 

[FCrackerJLRubi]

I wonder how can it automatically adjust? Cant be weight since various 35s are all over the scale, could be something to do with the height i guess. Revolutions (360 tire rotation) vs speed could also trigger it to auto cal I guess up to a 35....but I dont see how that would work either since thats the exact reason you need a cal tool.

Or does automatic possibly imply that you just adjust a setting in the dash, no calibration/calibration tool needed?

 

[Billy]

I find it hard to believe it can calibrate itself.

 

[Boatbuilder88]

I'm skeptical that it can auto calibrate to a larger tire.

 

[Karl_in_Chicago]

I assumed there is a function you can engage to tell the system that you've switched to 35's and it had the ability to adjust for that. I can't see it automatically sensing the tire swap.

 

[DanW]

Entering the exact measured height of the tire, mounted on the Jeep with it's normal load on it, would be the way to go.

 

[Niteshooter]

I assumed there is a function you can engage to tell the system that you've switched to 35's and it had the ability to adjust for that. I can't see it automatically sensing the tire swap.

I suppose if you had the built in GPS it could 'talk' to the speedo computer and this could calibrate it to the larger tires.

 

[JAY]

It would be a great feature if it recalculated everything itself but probably unlikely.

I remember them specifically saying if you slap 35’s on a Rubi. Nothing else is needed. No lift, no fenders, no recalculation.

I find it hard to believe it can calibrate itself.

I'm skeptical that it can auto calibrate to a larger tire.

Yes, that's what Jeep told us when we asked at the LA Auto Show debut -- read the full FAQ here. That computers will compensate. We did not delve into how it does so exactly, however.

 

[Carlton_Banks]

Yes, that's what Jeep told us when we asked at the LA Auto Show debut -- read the full FAQ here. That computers will compensate. We did not delve into how it does so exactly, however.

Any idea if this is true for 37-40 inch tires as well or if it can calculate ring and pinion gear swaps?

 

[word302]

Any idea if this is true for 37-40 inch tires as well or if it can calculate ring and pinion gear swaps?

I doubt it.

 

[BillyHW]

Yes, that's what Jeep told us when we asked at the LA Auto Show debut -- read the full FAQ here. That computers will compensate. We did not delve into how it does so exactly, however.

I can't wait to find out how it does this.

 

[Carlton_Banks]

I can't wait to find out how it does this.

Many transmissions are adaptive/learn these days. The JKU had some adaptive properties.

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