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Service bulletin MSG01396

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 id37830
Published by NHTSA1995-01-10
Manufacturer's numberMSG01396
Manufacturer's date1994-11-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

MESSAGE TO DEALERS CORRECTING INCORRECT INFORMATION CONTAINED IN MANUFACTURER RECALL 90C51. *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
GEO METRO1990

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
CAMP/90C511995-02-09. Service bulletin. THE ADMINISTRATOR OF THE US ENVIRONMENTAL PROTECTION AGENCY (EPA) AND GENERAL MOTORS HAVE DETERMINED THAT CERTAIN 1990 GEO METRO VEHICLES WITH 1.0L ENGINES MAY EXCEED HIGH ALTITUDE CARBON MONOXIDE FEDERAL EMISSION STANDARDS. THIS CONDITION APPLIES TO VEHICLES REGISTERED IN COLORADO, NEVADA NEW MEXICO AND UTAH (VEHICLES WHICH HAVE MOVED TO THES STATES FROM CALIFORNIA WHICH ARE EQUIPPED WITH RPO YF5 DO NOT REQUIRE THIS CAMPAIGN REPAIR). THESE STANDARDS WERE ESTABLISHED TO PROTECT THE THE PUBLIC HEALTH AND WELFARE FROM DANGERS OF AIR POLLUTION. EXCESS EMISSION OF POLLUTANTS MAY CAUSE A VEHICLE TO FAIL STATE MANDATED EMISSION TESTS. TO CORRECT THIS CONDITION, VEHICLES REGISTERED IN THE FOUR AFFECTED STATES WILL HAVE A REDESIGNED OXYGEN SENSOR INSTALLED. *TW
MSG013831995-01-10. Service bulletin. MESSAGE ANNOUNCING MANUFACTURER RECALL 90C51. *TW
MSG013981995-01-10. Service bulletin. MESSAGE ANNOUNCING MANUFACTURER RECALL 90C51. *TW