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Service bulletin PIP6099A

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 id11027938
Published by NHTSA2026-02-01
Manufacturer's numberPIP6099A
Manufacturer's date2026-01-28
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This P/I is advising that the TCM should not be replaced for DTC P16F4 and to follow the repair instructions.

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

P16F4

Vehicles listed
BUICK ENCLAVE2026
BUICK ENVISION2026
CADILLAC ESCALADE2026
CADILLAC ESCALADE ESV2026
CADILLAC ESCALADE IQ2026
CADILLAC ESCALADE IQL2026
CADILLAC LYRIQ2026
CADILLAC OPTIQ2026
CADILLAC VISTIQ2026
CHEVROLET BLAZER EV2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET BRIGHTDROP 4002026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET BRIGHTDROP 6002026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EQUINOX2026
CHEVROLET EQUINOX EV2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2026
CHEVROLET TRAVERSE2026
GMC ACADIA2026
GMC SIERRA EV2026 (the catalog's model; the bulletin names a series or trim of it)
GMC TERRAIN2026
GMC YUKON2026
GMC YUKON XL2026

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