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Service bulletins for the 1997 Chevrolet Blazer

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.

59 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
1300890092023-12-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
PI09692018-06-04. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This preliminary informational bulletin provides information on High Oil Pressure on Startup After Engine Replacement Concern.
017272004-04-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.3 L35 LU3 RATTLE OR BUZZ NOISE FROM ENGINE. SIT BULLETIN 1457619. *TT
0306010242003-12-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. RATTLE NOISE IN ENGINE. *TT
030601024A2003-12-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. RATTLE NOISE IN ENGINE. *TT
0206050022002-10-07. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SOME CUSTOMERS MAY COMMENT ON AN EXHAUST BOOM / GROAN NOISE IN THE PASSENGER COMPARTMENT. *TT
990602012D2002-09-28. Service bulletin. ENGINE AND ENGINE COOLING. SUBJECT REGARDING RUST IN COOLING SYSTEM, HEATER INOPERATIVE, BLOWS COLD AIR, ENGINE OVERHEATS (FLUSH COOLING SYSTEM). NLM
3110012002-03-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SOME VEHICLES MAY EXHIBIT AN EXHAUST NOISE, RATTLE NOISE AT 550 RPM. *TT
990602012C2001-10-26. Service bulletin. ENGINE AND ENGINE COOLING. SOME CUSTOMERS MAY COMMENT THAT THE HEATER IS INOPERATIVE, BLOWS COLD AIR, ENGINE MAY EXHIBIT AN OVERHEAT CONDITION OR THE COOLANT RESERVOIR HAS RUST IN IT. *TT
990602012B2000-05-31. Service bulletin. ENGINE AND ENGINE COOLING. SOME CUSTOMERS MAY COMMENT THAT THE HEATER IS INOPERATIVE, BLOWS COLD AIR, ENGINE MAY EXHIBIT AN OVERHEAT CONDITION OR THE COOLANT RESERVOIR HAS RUST IN IT. *TT
990602012A2000-04-07. Service bulletin. ENGINE AND ENGINE COOLING. SOME CUSTOMERS MAY COMMENT THAT THE HEATER IS INOPERATIVE, BLOWS COLD AIR, ENGINE MAY EXHIBIT AN OVERHEAT CONDITION OR THE COOLANT RESERVOIR HAS RUST IN IT. *TT
9906020121999-08-26. Service bulletin. ENGINE AND ENGINE COOLING. CONDITIONS WITH HEATER INOPERATIVE, BLOWS COLD AIR, ENGINE OVERHEATS, AND RUST IN THE COOLANT SYSTEM. *TT
676114A1997-08-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE NOISE (INSTALL VALVE STEM OIL SEAL). *TW
7765121997-07-24. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. ENGINE ROUGH, MISS, AND OXYGEN SENSOR DTC'S (REPLACE OXYGEN SENSOR JUMPER HARNESS). *TW

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.