Interesting phone call, service manager quoted me 7k to install adaptive cruise control on my 2018 compass.... for non Trailhawk compasses, 1700 to change front ends to trailhawk with steel impact bar, they also have to calibrate the radar if it’s removed. Putting on bigger tires? 97 dollars to calibrate speedo, that lets you keep the warranty on everything. The ACC they said they have to change the body control module as well as the drive train module as well.
Adaptive Cruise Control and More
Housekat23
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great will do when buttons arrive.
Just one maybe stupid question
"proxy alignment." how to perform it ?its not a stupid question i too didnt know how was done.great will do when buttons arrive.
Just one maybe stupid question
depending on which software you use interface might differ but the process should be exactly the same.
So after you disable the regular cruise control and then enable the ACC, that page you will have an option of somewhere around that there called proxy alignment clicked and follow the instructions at some point will tell you to change to grey adaptor then blue one so just follow all that.
Success, Adaptive cruise control (ACC) works great.
Car:
Jeep Compass 2018 Limited with:
If your car has these modules keep reading
what's needed:
Replace switches:
Alfaobd:
Speed limiter, standard and ACC works fine
Funny because ASO said that it's not possible to that model.
I spent about 200 USD on it
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Car:
Jeep Compass 2018 Limited with:
- Cruise Control and Speed limiter
- front camera with FCW and active breaks
- front radar
If your car has these modules keep reading
what's needed:
- Genuine Mopar Speed Control Switch 5YL24XSAAC
- Alfaobd with full license + some laptop with WIN10
- ELM327 USB+ GREY and BLUE adapter (proxy alignment)
- Security Gateway Bypass if SGW exists in your car (mine doesn't have it)
Replace switches:
- you need a screwdriver
- push screwdriver into 3 holes to unlock horn -
- unscrew two screws on the back with the volume change buttons
- after that you'll be able to replace switches
Alfaobd:
- connect ELM327 to OBD2 and to USB laptop
- run program and choose: Jeep, Compass MP MY2017, Body Computer and select Body Computer Delphi/Marelli and connect
- to connect be sure that COM port is availabe via drivers (2008)
- when connected go to Staus/Faults and check/clear faults and check "Save log"
- go to Active Diagnostic tab
- choose Proxy Tools and select backup proxy configuration !!!
- choose Car Configuration change
- find Cruise Control and disable it (absent)
- find Adaptive Cruise Control Type and enable ACC plus (present)
- find ABS Function - Adaptive Cruise Control and enable it (present)
- after that go to PROXY alignment and run it. In that step you need BLUE and GREY adapter
- if proxy stuck please close alfaobd, connect to car and try to proxy again
- if every item on the list succeed close program, turn off car and turn on again
- that's it
Speed limiter, standard and ACC works fine
Funny because ASO said that it's not possible to that model.
I spent about 200 USD on it
Joined
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36 Posts
Yes it is possible, I found an Italian forum where some people did it.
I ordered my switch and I will get back to you when it's installed.
I have the 9 speed automatic which is the same as the trailhawk so I don't think there should be any problems there. The final drive ratio of the trailhawk is somewhat higher due to a different axle ratio but I don't think it will make much of a difference.
Joined
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36 Posts
So I succesfully installed 4wd low, Rock mode and Hill Descent Control (HDC) on my 2018 jeep compass 4x4 limited.
Requirements:
- New Transfer Case Switch 5XF15LXHAA or 5XF15LXHAB (I got mine on aliexpress for 38$ and it works fine)
- 9 speed automatic transmission
- AlfaOBD and adapter cables (I use an OBDLink EX and an extra "grey" adapter to complete proxy alignment)
- Axle ratio of 4334 (You can check your axle ratio with AlfaOBD in the Body Computer in the status/faults tab and click on "system status" next view log and search for Axle ratio)
Installing the switch:
- Use a plastic prying tool or credit card to undo the clips of the shiny black frame (I started at the top right corner and worked my way down and then to the other side)
- Put the shifter in neutral so you can lift the shiny black plastic a little more to access the metal clips holding the Transfer Case Switch in place.
- Undo the 2 left metal clips first and then the bottom one, it should come out after that with some wiggling.
- Disconnect it and put the new one in and just push everyting back into place.
AlfaOBD:
- Select Body Computer Delphi/Marelli and connect
- Go to Active Diagnostic tab
- Choose Car Configuration Change
- Find Terrain selector modes and set it to 5 modes
- Find 4 Wheel Drive Low Button and set it to present
- Find Hill descent control and set it to present
- After that go to PROXY alignment and run it
- Turn car off and let it sit for a few minutes
Joined
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36 Posts
I installed a chinese one which was listed with 3 product numbers. I don't know what the difference is but I think they will all fit until the 2021 model.
29.8US $ 14% OFF|Nbjkato Gloednieuwe Echte Overdracht Case Schakelaar 5XF15LXHAB,5XF15LXHAA = 5XF15TRMAA Voor Jeep Compass 2017 2018 2019|Auto Schakelaars & Relais| - AliExpress
Smarter Shopping, Better Living! Aliexpress.com
nl.aliexpress.com
ok, checked and i have same Axle ratio 4334. Found some used one 5XF15LXHAB ~60$I installed a chinese one which was listed with 3 product numbers. I don't know what the difference is but I think they will all fit until the 2021 model.
If you want to be sure buy the mopar one but it's around 120$. For me the price difference is a bit too much to justify buying the mopar one.29.8US $ 14% OFF|Nbjkato Gloednieuwe Echte Overdracht Case Schakelaar 5XF15LXHAB,5XF15LXHAA = 5XF15TRMAA Voor Jeep Compass 2017 2018 2019|Auto Schakelaars & Relais| - AliExpress
Smarter Shopping, Better Living! Aliexpress.com
@Laurens what about "4wd low", is it working?
Joined
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36 Posts
It seems to be working. When I push 4wd low, it turns FCW and ESC off so it definitely does something.
When I go to rock, it is locked in second gear and you can't change it.
However I expected it to lock in first gear in rock mode because that is what you read everywhere. I made a new thread to ask trailhawk owners about this behaviour because nobody seems to know what 4wd low exactly does.
I can get it to lock in first gear by going to mud mode and putting the shifter to manual shifting (mud starts in first gear) and then change to rock mode with the shifter still in manual.
When I do it like this it is locked in first gear and putting it back to automatic shifting still keeps it in first gear.
Joined
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36 Posts
Nice!!ok, it works
I've bought used one 5XF15LXHAB from Grand Cherokee
View attachment 16673
View attachment 16674
View attachment 16672
Did you check the gear while in rock and 4wd Low?
Mine is in second gear.
not yet, just installed it today. Will try within next days
go to status/faults tab and click on "system status" next view log and search for Axle ratio
Will try that thanks.
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