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Service bulletin 21NA088

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 id10199263
Published by NHTSA2021-07-19
Manufacturer's number21NA088
Manufacturer's date2021-05-03
NHTSA componentENGINE

NHTSA's summary

This service bulletin provides repair information to correct a customer concern of a Check Engine Light Displayed on Driver Information Center (DIC), Engine Cooling Fan Windmilling, DTC P0494 Set.

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.

Components

Engine

Trouble codes named

P0494

Vehicles listed
BUICK ENCLAVE2021
CADILLAC XT52020, 2021
CADILLAC XT62021
CHEVROLET BLAZER2020, 2021
CHEVROLET TRAVERSE2021
GMC ACADIA2020, 2021

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

Other bulletins for the same vehicles and component
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