DASM issue

[Firecracker392]

2026 Moab, 2400 miles, upgraded to 37” Mickey A/Ts. Dealer is having issues with software not accepting the tire size, also park sense feature has never worked properly, not that it’s a huge issue.

 

[OldVetteGuy]

2026 Moab, 2400 miles, upgraded to 37” Mickey A/Ts. Dealer is having issues with software not accepting the tire size, also park sense feature has never worked properly, not that it’s a huge issue.

Check this out:

Amazon.com: Z Automotive DASM Whisperer fits 2025-2026 Wrangler JL, Wrangler 4xe & Gladiator JT | Quick Fix | Custom Fit | Improves Handling and Performance | OEM Quality | Easy Installation : Automotive

Buy Z Automotive DASM Whisperer fits 2025-2026 Wrangler JL, Wrangler 4xe & Gladiator JT | Quick Fix | Custom Fit | Improves Handling and Performance | OEM Quality | Easy Installation: Code Readers & Scan Tools - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

 

[Firecracker392]

Sounds like what I’m looking for!

 

[Florida-Man]

Sounds like what I’m looking for!

Or, just get the dealer to upgrade the DASM module under

TSB 08-114-26​

It's a 30 minute software update for them. They did for free for me, but I had to ask nicely. After the update, any programmer can change your tire size (Procal, Tazer, etc). You do not need whiperer.

"

• Note for 2025 - 2026 Wrangler Owners: Certain 2025 and 2026 Jeep Wrangler (JL) and Gladiator (JT) vehicles built on or after March 24, 2025 were produced with a faulty Driver Assistance System Module (DASM) software calibration, affecting the AEV ProCal and all other dealer and aftermarket programming tools. This DASM calibration could not properly accept tire size which then caused lane departure and auto high-beam warning faults and disabled certain driver assistance features. Please see attached Customer Bulletin for instructions on how to resolve the issue from your local Stellantis dealer.

"

Also here:

2026 Jeep Wrangler DASM Software Update TSB 08-114-26

Experiencing a Malfunction Indicator Lamp or ADAS warnings in your 2026 Jeep Wrangler? TSB 08-114-26 addresses DASM software issues, DTCs C2206-00 and…

carandproblems.com