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Old 08-16-2013, 06:11 PM
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4WD Systems

There seems to be 3 4WD systems on the new Cherokee. I have looked for details on what the differences are and what is common to all of them but there is very limited info on the Jeep site on it.

There is...

Active Drive I ( ADI )
Active Drive II (ADII )
Active Drive Lock ( ADL )

I am mainly interested in more info on ADI and ADII.

In ADI can you flip a switch to turn 4WD on like you can in an FDI Patriot/Compass or is it a fully automated system you have no control over as far as when the rear diff locks in? Do you turn it on but it only locks when it detects slippage? It just doesn't say anywhere I have seen. Do you need to move up to ADII to be able to turn 4WD on/off?

Also, can you select different conditions in ADI like you can in ADII and ADL( Select Terrain )? It looks like you get Select Terrain in all models and I 'assume" this means the knob that lets you pick auto, snow, sand, etc... but not sure.

I looked but didn't see any in depth discussions on the 3 systems. If there has been could someone link me to it. I want to learn more about ADI and ADII. I won't be getting a Trailhawk so ADL is out for me.

Thanks in advance.
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Old 08-16-2013, 10:19 PM
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Quote:
Originally Posted by NHPATRIOT View Post
There seems to be 3 4WD systems on the new Cherokee. I have looked for details on what the differences are and what is common to all of them but there is very limited info on the Jeep site on it.

There is...

Active Drive I ( ADI )
Active Drive II (ADII )
Active Drive Lock ( ADL )

I am mainly interested in more info on ADI and ADII.

In ADI can you flip a switch to turn 4WD on like you can in an FDI Patriot/Compass or is it a fully automated system you have no control over as far as when the rear diff locks in? Do you turn it on but it only locks when it detects slippage? It just doesn't say anywhere I have seen. Do you need to move up to ADII to be able to turn 4WD on/off?

Also, can you select different conditions in ADI like you can in ADII and ADL( Select Terrain )? It looks like you get Select Terrain in all models and I 'assume" this means the knob that lets you pick auto, snow, sand, etc... but not sure.

I looked but didn't see any in depth discussions on the 3 systems. If there has been could someone link me to it. I want to learn more about ADI and ADII. I won't be getting a Trailhawk so ADL is out for me.

Thanks in advance.
Try this link http://www.allpar.com/SUVs/jeep/2014-cherokee.html its got some info that may help.
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Old 08-16-2013, 10:22 PM
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Try this link see if it helps. http://www.allpar.com/SUVs/jeep/2014-cherokee.html
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Old 08-17-2013, 09:09 AM
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Re: 4WD Systems

Thanks. Does explain a bit more but still not sure if you have ADI if you turn 4WD on/off with a switch or if it is 100% auto? Sounds like there is driver control to it at least to a degree. I like the sound of the Select-Terrain more and more as I read about it.

Thanks again.
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Old 08-17-2013, 09:59 AM
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The latest press reviews in Moab indicate the 'system' always has control to some extent, for instance, even in 4wd Low either the locker engaged, they reported some wheel spin before the tire with traction was engaged. The caveat was that they were pre-production models.
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Old 08-17-2013, 11:45 AM
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Re: 4WD Systems

Quote:
Originally Posted by NHPATRIOT View Post
Thanks. Does explain a bit more but still not sure if you have ADI if you turn 4WD on/off with a switch or if it is 100% auto? Sounds like there is driver control to it at least to a degree. I like the sound of the Select-Terrain more and more as I read about it.

Thanks again.
Jeep states in their brochure that ADI is a single speed, fully automatic 4WD system. No option to turn it on or off.
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Old 08-17-2013, 12:00 PM
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Re: 4WD Systems

4WD systems are covered starting on page 428 of the owner's manual. The vehicle isn't out and they're up to the second edition. The User's guide is also listed.

Jeep Owners | Download an Owners Manual 2004 - 2011 | Jeep
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Old 08-17-2013, 12:05 PM
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No, there is no switch, there is a button on the dial to engage 4 low, and the locker of you have it, but there is no way to engage 4 hi, for that matter though the grand cherokee is he same way, you can only lock it in 4wd low.
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Old 08-19-2013, 06:31 PM
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Re: 4WD Systems

Thanks to the member that posted that the OM and UG are now up. I spent some time and read through them. It helped explain the 4WD systems to me.

Have to say I am kind of turned off on the vehicle a bit now. I am just not a fan of automated systems. Been there before with an AWD vehicle that was 100% automated. It was fine for on road driving but was lacking overall. Waiting for the wheels to slip before 4WD activates can lead to problems in some situations( such as a snow and ice covered boat ramp ).

ADI is nothing more than what any other automated AWD suv/cuv out there has pretty much. Very disappointed they did this. Select-Terrain may help a little but it is very upsetting to see they take the ability to manually engage 4WD, when you know you need/want it, away from the driver unless you go to ADII or a TH with ADL. Just stupid. Not my idea of 4WD. ADI = AWD to me now and that is not as good for my needs.

I wonder if going to ADII, so you can put it in 4WD Low when needed, will result in a MPG hit? I don't mean when in 4-Low. I mean overall( change in gearing? ). On the Patriot and Compass systems there is a pretty big MPG hit between the standard 4WD system( FDI )and the 4WD system with 4WD Low( FDII ). If it is the same with ADI and ADII on the Cherokee I may be out. If ADII won't negatively impact daily driving MPG then I am back in.

When will car mfg's stop thinking they always know what is best and take away things that make sense and add things that don't?
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