# Service bulletin Dealer 91OL

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11038141
- Published by NHTSA: 2026\-10\-06
- Manufacturer's number: Dealer 91OL
- Manufacturer's date: 2026\-09\-03
- Campaign id or software version: 91OL
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

This OTA update provides improvements to connectivity stability and OCU module diagnostics, which will reduce OCU module replacements due to false DTC detection. This software update is also a prerequisite for future updates.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11038141-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11038141-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Vehicles listed

- 2023 VOLKSWAGEN ATLAS
- 2023 VOLKSWAGEN ATLAS CROSS SPORT
- 2023 to 2024 VOLKSWAGEN JETTA
- 2023 to 2024 VOLKSWAGEN TAOS
- 2023 to 2024 VOLKSWAGEN TIGUAN

JSON: [/v1/bulletins/11038141](/v1/bulletins/11038141)

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