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Service bulletin PIC6587C

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 id11019528
Published by NHTSA2025-06-16
Manufacturer's numberPIC6587C
Manufacturer's date2025-06-05
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.

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
CADILLAC CT42025
CADILLAC CT52025
CADILLAC ESCALADE2025
CADILLAC ESCALADE ESV2025
CADILLAC ESCALADE IQ2025
CADILLAC OPTIQ2025
CHEVROLET BLAZER EV2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EQUINOX EV2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO EV2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 15002025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2025
CHEVROLET TRAVERSE2024, 2025
GMC ACADIA2024, 2025
GMC SIERRA EV2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2025
GMC YUKON XL2025

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