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Service bulletin PIT6144G

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 id11017315
Published by NHTSA2025-04-29
Manufacturer's numberPIT6144G
Manufacturer's date2025-04-18
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This Preliminary information communicates A diagnostic tip from root causing DTC: C1197 SYM 92 caused by a pinched air inlet hose to the suspension compressor air leveling system or internal software concern

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

C1197

Vehicles listed
CADILLAC ESCALADE2021, 2022, 2023, 2024, 2025
CADILLAC ESCALADE ESV2021, 2022, 2023, 2024, 2025
CHEVROLET SUBURBAN2021, 2022, 2023, 2024
CHEVROLET TAHOE2021, 2022, 2023, 2024, 2025
GMC HUMMER EV PICKUP2022, 2023, 2024, 2025
GMC SUBURBAN2001
GMC YUKON2021, 2022, 2023, 2024, 2025
GMC YUKON XL2022, 2023, 2024, 2025

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