2023 Grand Cherokee WL OEM Retrofit Project (ADA, TSR, Nav in Cluster, More)
I bought this 2023 Jeep Grand Cherokee WL as a salvage vehicle and rebuilt the front end, but while I loved the truck, it was missing basically every feature that makes the higher trims worth owning. My goal was to retrofit all the OEM features I actually wanted and make the vehicle function like a Summit.
The main things I wanted were:
- Navigation in cluster
- Album art in cluster
- Traffic Sign Recognition
- Active Driving Assist instead of the standard Active Lane Management
The hardest retrofit by far was Active Driving Assist, so I’ll start there.
For ADA, I sourced a brand new Central ADAS Decision Module from a Summit. I cross-referenced the part number using service information to make sure I got the correct module. Along with that, I also needed a steering wheel with the capacitive touch leather so the vehicle could detect my hands on the wheel. The used steering wheel I bought also came with the Steering Wheel Sensing Module already installed.
After installing all the hardware, I programmed and calibrated the new ADAS module using WiTECH.
Now comes the annoying part that nobody really talks about on WL chassis vehicles: coding.
Since you can’t truly bypass the Security Gateway on these, this is the method I use:
I connect a Y-splitter to the OBD port. One side gets connected to the MDP OEM passthrough device and the other side gets connected to an Autel V200. I unlock the gateway using WiTECH and simply leave the session open. Once the gateway is authenticated, I use AlfaOBD through the V200 to perform all the coding changes.
The coding changes that made ADA work were:
- Changing the autonomy level to Level 2
- Changing the SWSM from “Absent” to “Present”
After that, everything worked exactly as it should from the factory.
While I was already in AlfaOBD, I also enabled all the other cluster-related features including:
- Navigation in cluster
- Album art in cluster
- Traffic Sign Recognition
Now the truck behaves exactly like a Summit in terms of cluster functionality.
The only thing I still don’t have is the upgraded ambient lighting system with the color-changing surround lighting. Because my truck only has the standard white ambient lighting, the cluster surround doesn’t change colors when Active Driving Assist is enabled like it does on higher trims.
Eventually I plan on retrofitting the OEM ambient lighting system completely, including the wiring and modules, so everything matches properly.
Next retrofits planned:
- OEM massaging seats
- Front passenger display
- Full OEM ambient lighting system
Honestly, the WL platform is way more capable than people think. Most of these features are already supported by the architecture — it’s usually just a combination of missing hardware, calibration, and configuration changes. The biggest issue is that almost nobody documents WL coding information because of how annoying Stellantis made the SGW and module configuration process.
Hopefully this helps somebody else attempting these retrofits.