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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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService campaign
NHTSA id11031366
Published by NHTSA2026-04-17
Manufacturer's numberN262547330
Manufacturer's date2026-04-16
Campaign id or software versionN262547330
NHTSA componentUNKNOWN 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

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Vehicles listed
BUICK ENCLAVE2025, 2026
CADILLAC CELESTIQ2025
CADILLAC CT52025, 2026
CADILLAC LYRIQ2024, 2025, 2026
CADILLAC OPTIQ2025, 2026
CADILLAC VISTIQ2026
CADILLAC XT42024, 2025
CHEVROLET BLAZER EV2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET BRIGHTDROP 4002025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET BRIGHTDROP 6002025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET CORVETTE CONVERTIBLE2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET CORVETTE COUPE2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EQUINOX2025, 2026
CHEVROLET EQUINOX EV2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO EV2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TRAVERSE2025, 2026
GMC ACADIA2025, 2026
GMC SIERRA EV2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
GMC TERRAIN2025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.