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Service bulletin PIT6222

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 id11007762
Published by NHTSA2024-09-13
Manufacturer's numberPIT6222
Manufacturer's date2024-09-13
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This Preliminary information communicates that a ticking/clicking noise from the rear HVAC case can be caused by a binding mode door.

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
CADILLAC ESCALADE2023, 2024
CHEVROLET SUBURBAN 15002023, 2024 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2023, 2024
GMC YUKON2023, 2024

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