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Service bulletin PIT6512

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 bulletin
NHTSA id11032768
Published by NHTSA2026-05-19
Manufacturer's numberPIT6512
Manufacturer's date2026-05-11
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This PI states that if SDGM DTC P0604/P0607 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM. Advises of how to contact PQC to authorize SDGM replacement.

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.

Trouble codes named

P0604, P0607

Vehicles listed
BUICK ENCLAVE2025
BUICK ENVISION2023, 2024, 2025
CADILLAC CT52025, 2026
CADILLAC ESCALADE IQ2025
CADILLAC LYRIQ2023, 2024, 2025
CADILLAC OPTIQ2025
CADILLAC XT42024, 2025
CHEVROLET BLAZER EV2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET COLORADO2023, 2024, 2025
CHEVROLET CORVETTE2024, 2025
CHEVROLET EQUINOX2025, 2026
CHEVROLET EQUINOX EV2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TRAVERSE2024, 2025, 2026
GMC ACADIA2024, 2025
GMC CANYON2023, 2024, 2025
GMC HUMMER EV PICKUP2023, 2024, 2025
GMC HUMMER EV SUV2024, 2025
GMC SIERRA EV2024, 2025 (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.