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Service bulletin PIT6521

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 id11033988
Published by NHTSA2026-06-18
Manufacturer's numberPIT6521
Manufacturer's date2026-06-09
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This PI advises dealers that if DTC P0606 and/or P0607 are set in the K160 EBCM, additional diagnostic aids should be followed to ensure the module requires 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

P0606, P0607

Vehicles listed
BUICK ENCLAVE2025
CHEVROLET COLORADO2023, 2024, 2025, 2026
CHEVROLET TRAVERSE2024, 2025
GMC CANYON2023, 2024, 2025, 2026

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