Like I said, the gap tool works 100% as intended, all functions but only after GAP worked on the firmware for a couple weeks when I alerted them about the issue.

I'll check the date but it was roughly in October 2025 -ish.

Mine is an octa and I have also not seen any over-the-air PIVI update notifications yet. I will NOT be installing when I do see one though LOL

 

Just curious about the coding and programming since that is where the new Secure Diagnostics protocol is in effect. "100 percent functional" means that you have successfully edited your vehicle ccf file to activate something that your vehicle did not have. It I understand that is what you have done, then it looks like maybe it is just a new thing in europe unless they are planning on rolling it out in an ota update which is a good reason amongst others to try to avoid the update

 

In the UK the ODB port is effectively locked for doing anything beyond basic fault code and live readings for the MY26 models. Confirmed to me by GAP just 24 hrs ago. This is because the newer Secure Diagnostics that JLR have implemented in the MY26. As far as I can tell, things like CCF changes, updating flash etc. require authentication via the TOPIx system to perform updates. Maybe this is not the case in other territories such as the USA.

 

This is what i was thinking was the case. I am waiting to get my hands on a 26 to confirm.

 

Interesting read.

since my last update my parking sensors at the front don’t work.

My Parking assist feature is also disabled telling me there’s dirt on sensors.

I wonder in the new software is battling with my park assist feature.

I’ve checked the fuse, and the connection to the front sensors in the bumper.

either it’s software or I’ve got a parking sensor or near field sensor malfunction. Wade sensing and reverse sensor work which would seem to support a functioning NFSM

 

Take a stethoscope or a long screwdriver and hold it against each sensor on the front. You should hear a rapid clicking from each one. Curious if any of them are not clicking

 

fantasti@sarek

thank you for the tip. I will investigate further.

Edit: I just listened to each sensor in the front bumper. All 6 are clicking away. I just used my ear directly against each one.

 

If JLR has implemented new protocols in the 2026 to prevent changes to .ccf files using the Gap tool, should we fear them instituting those changes in an OTA software update in the older models to further handcuff owners of pre-2026 from making ,ccf changes going forward? This is like a game of chess, except JLR has as many Kings as we have pawns.

 

Sounds like the update corrupted something. You can use Topix to roll back the update tonsee if it fixes it.

 

They would not do this and here is why.

As context, this isn’t JLR proactively “Locking down” and preventing access - it’s compliance to EU cybersecurity laws. Starting with 2026 (or 2025 some build date) model year, EU mandating strict regulations about anti-hacking on vehicles.

If someone with ill intentions wanted, they could stick something in our OBD port and hack our car. Or - worse - hack via OTA if they figured it out. Remotely mess with our cars. Cause accidents. Chaos. That is what this lockdown is trying to prevent. So to avoid the EU coming after them, and fines, or stop sales, they have to “lock it down” on new models. That’s all they did here. They knew this was coming for like 5 years btw so the L663 / L460 / L461 etc architecture supports the change without a wholesale vehicle redesign. BTW, the older cars... L494, L405 etc would not.

Porsche community is up in utter ****ing arms about this right now on 2025+ Porsches... Rennlist is high comedy with complaints on the 992 message board.

Yes, it’s lame. And yes, it’s over-regulation but that’s what is going on. And yes, it royally screws home mechanics and independent shops.

Since it is a regulatory compliance issue, I see no mechanism by which JLR would retroactively apply this to the older Defenders because there is no legal justification, regulatory reason or basis to. When the older cars were sold, they complied with the law.

So rest easy your older Defender is probably safe from the change.