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Service bulletin 776512

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 id52347
Published by NHTSA1997-07-24
Manufacturer's number776512
Manufacturer's date1997-04-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

NHTSA's summary

ENGINE ROUGH, MISS, AND OXYGEN SENSOR DTC'S (REPLACE OXYGEN SENSOR JUMPER HARNESS). *TW

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Exhaust and emissions

Vehicles listed
CHEVROLET BLAZER1996, 1997
GMC JIMMY1996 to 1997
OLDSMOBILE BRAVADA1996, 1997

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

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