# Service campaign N262547330

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 campaign
- NHTSA id: 11032936
- Published by NHTSA: 2026\-05\-27
- Manufacturer's number: N262547330
- Manufacturer's date: 2026\-05\-27
- Campaign id or software version: N262547330
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

Certain vehicles may have a condition in which the Telematic Control Module may enter an unrecoverable state. Dealers are to reprogram the Telematic Control Module. IMPORTANT: The module may be several software versions behind and could take multiple programming events to bring it to the latest software level \(The same calibration screen MUST be displayed to validate the module has been programmed to the latest level\). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over\-the\-air \(OTA\) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11032936-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11032936-9999.pdf)

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

## Vehicles listed

- 2025 to 2026 BUICK ENCLAVE
- 2025 CADILLAC CELESTIQ
- 2025 to 2026 CADILLAC CT5
- 2024 to 2026 CADILLAC LYRIQ
- 2025 to 2026 CADILLAC OPTIQ
- 2026 CADILLAC VISTIQ
- 2024 to 2025 CADILLAC XT4
- 2024 to 2026 CHEVROLET BLAZER EV
- 2025 to 2026 CHEVROLET BRIGHTDROP 400
- 2025 to 2026 CHEVROLET BRIGHTDROP 600
- 2026 CHEVROLET CORVETTE CONVERTIBLE
- 2025 to 2026 CHEVROLET EQUINOX
- 2024 to 2026 CHEVROLET EQUINOX EV
- 2025 to 2026 CHEVROLET SILVERADO EV
- 2025 to 2026 CHEVROLET TRAVERSE
- 2025 to 2026 GMC ACADIA
- 2025 to 2026 GMC SIERRA EV
- 2025 to 2026 GMC TERRAIN

JSON: [/v1/bulletins/11032936](/v1/bulletins/11032936)

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