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  #253  
Old 09-30-2013, 04:48 PM
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Thanks Willx/Milous/Scottina , guess I can get over it with those logical reasons...
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  #254  
Old 10-04-2013, 02:22 AM
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Re: Adaptive Cruise Control Stop-go

New ACC TSB 10/03/2013

SYMPTOM/CONDITION: A customer may experience that the forward collision feature will not operate over 55 MPH/88KPH.

Flash: Adaptive Cruise Control Enhancements (NH3)

For vehicles equipped with Adaptive Cruise Control w/Stop (sales code NH3) and Advanced Brake Assist (sales code BGG) built on or after July 20, 2013 through August 28, 2013.

TSB 08-076-13
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  #255  
Old 10-04-2013, 06:45 AM
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Re: Adaptive Cruise Control Stop-go

So why is this difference?
  • a different control module. If so, what is the new part number. Can it be replaced on the older vehicles?
  • a different calibration (firmware) of the same control module. If so, will it be available to the older vehicles and eventually installed by the dealer? Apparently not.
It is being discussed here. So yeah it went quietly into production in July. And Milous says the older ones are not upgradable. And Scottina says the SRTs are not getting it either due to issues with the brakes. What makes it not upgradable? Is it cost prohibitive? Assuming it is a module or a set of modeules, do(es) the new one(s) have extra sensors and extra wires and our current wiring architecture (harnesses et. al.) don't allow it?

I would like it broken down to part numbers, costs and their location (could be in the transmission or could be in the engine compartment) before I believe the not upgradable statement. Think about it, if it fails on one of the older cars say next year what are they replacing with? Parts that were produced during a short run, the year before, for 4 months or a current equivalent part? Look at people getting radios replaced. They are not getting theirs replaced with units made in April 2013 with the April UConnect 13.12 or 13.15 version either but rather new units with uconnect firmware that the rest of us cannot Download.

I would more readily believe the SRT brembo story than the inability to upgrade.
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  #256  
Old 10-04-2013, 06:54 AM
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Re: Adaptive Cruise Control Stop-go

Quote:
Originally Posted by f1anatic View Post
So why is this difference?
  • a different control module. If so, what is the new part number. Can it be replaced on the older vehicles?
  • a different calibration (firmware) of the same control module. If so, will it be available to the older vehicles and eventually installed by the dealer? Apparently not.
It is being discussed here. So yeah it went quietly into production in July. And Milous says the older ones are not upgradable. And Scottina says the SRTs are not getting it either due to issues with the brakes. What makes it not upgradable? Is it cost prohibitive? Assuming it is a module or a set of modeules, do(es) the new one(s) have extra sensors and extra wires and our current wiring architecture (harnesses et. al.) don't allow it?

I would like it broken down to part numbers, costs and their location (could be in the transmission or could be in the engine compartment) before I believe the not upgradable statement.
We don't have all of the parts information at this moment but, it is a completely different system. I am sure some of the components are "shared" but I know there were changes to the ABS system. Slowing down to a low speed vs stopping completely and starting going again require a different type of brake/throttle interaction.

Milous explains some of the differences between the 3 systems here :Jeep Grand Cherokee WK2 - Cruise Control

I am sure it is "possible" to upgrade the system as they are still working with the same electrical architecture... However you may be looking at many thousands of dollars as it is probably numerous different components such as the ABS Module plus all of the programming. I don't think anyone would even want to touch that project due to the safety aspects.

Anyway, as you will see by Milous' descriptions of the other system components, there will likely be some good detail to come in the future.
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  #257  
Old 10-04-2013, 10:04 AM
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Re: Adaptive Cruise Control Stop-go

Quote:
Originally Posted by Milous View Post
New ACC TSB 10/03/2013

SYMPTOM/CONDITION: A customer may experience that the forward collision feature will not operate over 55 MPH/88KPH.

Flash: Adaptive Cruise Control Enhancements (NH3)

For vehicles equipped with Adaptive Cruise Control w/Stop (sales code NH3) and Advanced Brake Assist (sales code BGG) built on or after July 20, 2013 through August 28, 2013.

TSB 08-076-13
Mine still waiting for shipping, but falls in this date range. Will Jeep do the software update before mine ships, or only if I have problems with this after I get the Jeep? - Which will be to late if I find out after it does not work, because that could mean an accident could occur.
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  #258  
Old 10-04-2013, 12:24 PM
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Re: Adaptive Cruise Control Stop-go

Quote:
Originally Posted by Shannon View Post
Mine still waiting for shipping, but falls in this date range. Will Jeep do the software update before mine ships...
Yes, most likely already done.
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