TSB 08-294-26 — Dodge Service bulletin
08-294-26 is a service bulletin on file with NHTSA for the Dodge Durango, 2021–2024 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Telematics Box Module (TBM) Firmware Over The Air Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Codes (DTCs): ● B22A9-00 - ECU Internal Performance. ● B1560-13 - Cellular…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 08-294-26 names
| Vehicle | Model years |
|---|---|
| Dodge Durango | 2021, 2022, 2023, 2024 |
Every document filed under 08-294-26
| Document ID | Filed | Type |
|---|---|---|
| 08-294-26 | July 25, 2026 | Service bulletin |
What 08-294-26 covers
Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 08-294-26?
08-294-26 is a service bulletin filed with NHTSA by Dodge, covering the Dodge Durango across the 2021–2024 model years. NHTSA's summary reads: Telematics Box Module (TBM) Firmware Over The Air Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Codes (DTCs): ● B22A9-00 - ECU Internal Performance. ● B1560-13 - Cellular…
Which vehicles does 08-294-26 cover?
NHTSA's file names Dodge Durango (2021–2024). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB 08-294-26 a recall, and is the repair free?
No. 08-294-26 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of 08-294-26?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 08-294-26, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 08-294-26. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.