Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > Trouble Shooting/Problems/Service

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 11-06-2013, 12:46 PM
New Member
 
Join Date: Nov 2013
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
arib is on a distinguished road
ACC with stop not stopping anymore

After a minor front end bump, the front radar sensor on my 14 grand Cherokee was scratched And replaced. The new radar was in plant mode. The dealer got it out of plant mode but now my ACC that used to go down to stop disengages at 15mph. This originally had stop and the window sticker says as much. Dealer is dumbfounded. Any ideas? Thanks in advance.
__________________

__________________
Reply With Quote
  #2  
Old 11-09-2013, 04:24 PM
Member
 
Join Date: Jul 2013
Posts: 9
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 431
Carson14 is on a distinguished road
Re: ACC with stop not stopping anymore

Quote:
Originally Posted by arib View Post
After a minor front end bump, the front radar sensor on my 14 grand Cherokee was scratched And replaced. The new radar was in plant mode. The dealer got it out of plant mode but now my ACC that used to go down to stop disengages at 15mph. This originally had stop and the window sticker says as much. Dealer is dumbfounded. Any ideas? Thanks in advance.
I don't have any ideas, but this seems like it could somehow help us with the problem of retrofitting ACC w/stop into our w/o stop vehicles.
__________________

__________________
Reply With Quote
  #3  
Old 11-10-2013, 12:16 AM
Premium Member
 
Join Date: Sep 2013
Posts: 487
Thanks: 0
Thanked 51 Times in 40 Posts
Rep Power: 5075
Peter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond repute
Kind of sounds like the module was replaced with the older version when they did the repair.
__________________
Reply With Quote
  #4  
Old 11-10-2013, 03:51 AM
exlr8's Avatar
Premium Member
My Jeep: 2013 3.0L WK2
 
Join Date: May 2012
Location: Brisbane, Australia
Posts: 262
Thanks: 0
Thanked 4 Times in 4 Posts
Rep Power: 1915
exlr8 has a reputation beyond reputeexlr8 has a reputation beyond reputeexlr8 has a reputation beyond reputeexlr8 has a reputation beyond reputeexlr8 has a reputation beyond reputeexlr8 has a reputation beyond reputeexlr8 has a reputation beyond reputeexlr8 has a reputation beyond reputeexlr8 has a reputation beyond reputeexlr8 has a reputation beyond reputeexlr8 has a reputation beyond repute
Garage
Re: ACC with stop not stopping anymore

Quote:
Originally Posted by Peter_K View Post
Kind of sounds like the module was replaced with the older version when they did the repair.
Exactly where I was going. Other than that, are you 100% sure the sensor is aligned properly? As it seems to be working to a point, I guess it is.

I am only speaking from my own experience (with a MY13) that it went to a dealer 3 times and the third time they said I needed a new sensor. From that I pulled off the air dam and inspected it myself only to notice it was bent downward several degrees. I straightened to the vertical and it has been perfect since (yes, no confidence in that dealer whatsoever).

Anyway, just thought it was worth checking alignment (yourself) first, process of elimination.
__________________
Arrived 23/10/12
MY2013 Mineral Grey Overland CRD
Rear DVD - Tint - Tow Bar - Mopar Chrome Fog Light Bezels - Front Recovery Hook - Mopar Under Body Protection Plates - Pirelli Scorpion ATR 265/60R18 - And sand capable! - Car Audio: HAT Imagine 6x9 front component speakers - HAT Mirus 6.5 rear coaxials
Reply With Quote
  #5  
Old 11-14-2013, 06:08 PM
f1anatic's Avatar
Premium Member
My Jeep: 2014 3.6L WK2
 
Join Date: Jan 2013
Location: Illinoize
Posts: 956
Thanks: 5
Thanked 68 Times in 50 Posts
Rep Power: 158184
f1anatic has a reputation beyond reputef1anatic has a reputation beyond reputef1anatic has a reputation beyond reputef1anatic has a reputation beyond reputef1anatic has a reputation beyond reputef1anatic has a reputation beyond reputef1anatic has a reputation beyond reputef1anatic has a reputation beyond reputef1anatic has a reputation beyond reputef1anatic has a reputation beyond reputef1anatic has a reputation beyond repute
Re: ACC with stop not stopping anymore

Well this is interesting. Thank you for the information, Carson, and for linking this thread here.
I have started a thread not too long ago, trying to add the feature of ACC with STOP to those 2014 Jeep Grand Cherokee's who came from the factory with ACC without STOP. You can find the thread at this link.

The information that ARIB is sharing with us is isgnificant in ways we do not fully comprehend. Based on my research, using VIN numbers of different 2014 vehicles, the difference is in the ABS control module, as the radar eye (ACC Module) is the same. If I may speculate:

1) they either installed an ACC Module from a 2011-2013 model
2) they installed the proper module but they did not flash it with the correct firmware revision.

By any means, please keep us informed. Maybe after all, there is a firmware upgrade solution for us. As I said it in numerous other places, I believe the retrofit of STOP on a 2014 MY Jeep is not only possible but also economical (several hundred dollars). It would not be possible on prior MY vehicles because they lack other sensors such as the camera by the rear view mirror.
__________________
Reply With Quote
  #6  
Old 11-15-2013, 01:54 PM
Member
 
Join Date: Feb 2011
Posts: 464
Thanks: 0
Thanked 15 Times in 12 Posts
Rep Power: 1788
Snipe315 is on a distinguished road
Re: ACC with stop not stopping anymore

Quote:
Originally Posted by arib View Post
After a minor front end bump, the front radar sensor on my 14 grand Cherokee was scratched And replaced. The new radar was in plant mode. The dealer got it out of plant mode but now my ACC that used to go down to stop disengages at 15mph. This originally had stop and the window sticker says as much. Dealer is dumbfounded. Any ideas? Thanks in advance.
Yup, sure sounds like they replaced your unit with an older one.

Please let us know if the dealership admits to this error and how they are fixing/resolving it.
__________________

__________________
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
CROWD PROJECT: Retrofitting "STOP" on the 2014 JGCs with ACC f1anatic Tech Tips/DIY/How To 30 01-29-2014 10:56 PM
CROWD PROJECT: Retrofitting "STOP" on the 2014 JGCs with ACC f1anatic Technical Tips/DIY/How-To 0 10-08-2013 08:04 PM
Worth stopping for...... Overspin Grand Cherokee SRT - WK2 6 11-10-2012 04:12 PM
How do you stop door open chime when in ACC? savvas Export Grand Cherokee 2011+ 30 07-16-2012 04:21 AM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 01:36 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community