Activate illuminated door sill on 2026 Mustang with ForSCAN

[ugasouthernpride]

@Whoznex ..... great post. Question: when you find code line 726-37-02 do you click on restore or write to activate the code? BTW I ordered two, was called into the dealer to pick them up. Paid for them while a parts guy went to the back to get them. He came back without them and said he guessed they hadn't shipped. Ha Ha - I think I know what happened to them. Anyway here's a tip from me. When I wanted to install a kill switch on my 2024 GT I called Ford Client Service they heard me out, agreed (I was shocked) gave me a file number and said I had to have a Ford dealer contact them before the install to confirm and it WOULD be covered by warranty. So, obviously, this time I will call and using your kindly provided directions see if Ford will cover the installation under warranty if a Ford dealer does the install and programming. If so I'll get a case number for any future potential warranty hassles. thanks again for posting.

Did you figure out how to do it? I’m getting forscan for this and a few other things. Just don’t know exactly what to do.

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[jmatero]

You would Write the code

FINALLY GOT IT WORKED OUT!

For anyone with a 2026 401A Mustang GT who was bummed about Ford de-contenting the illuminated door sills this year—there is hope! If you grab a set of the factory plates and plug them into the hidden harness tracks, you can officially get them activated and lighting up using FORScan!

(For anyone looking to buy the physical sills, you can source a set of OEM factory "take-offs" from a 2024–2025 Premium model or look up Ford's Illuminated Door Sill Kit).


DISCLAIMER: Using FORScan always comes with built-in risks of messing up your car's modules, so please do this completely at your own discretion. I cannot guarantee this exact value will work for future Over-The-Air updates or any other model year.

If you want to try it yourself, the exact block and value that need to be changed are highlighted in one of my pictures below.

Huge shoutout to @thatvaporsblue650_ on Instagram for finding the fix—I can’t take the credit for cracking the code, but I can confirm it works!


#S650Mustang #MustangGT #FORScan #MustangPremium #2026Mustang #Gen7Mustang #S650Mods

Do you know which module to look under in fors

 

[jmatero]

So did this in ForScan on my 2026 GT 401A and the door sills work! YAY!

However... now the driver's footwell LED is a different color than the ambient lighting setting. Appears to be missing blue hues. It worked fine before recoding.

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