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Service bulletin RCL/637

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 id41031
Published by NHTSA1995-11-01
Manufacturer's numberRCL/637
Manufacturer's date1995-04-01
NHTSA componentELECTRICAL SYSTEM:IGNITION:MODULE

NHTSA's summary

RECALL 637 - CARBON MONOXIDE LEVELS MAY EXCEED THE LIMITS ALLOWED BY FEDERAL EMISSIONS STANDARDS. TO CORECT THIS CONDITION, THE POWERTRAIN CONTROL MODULE MUST BE REPLACED. *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

Electrical system, Ignition

Vehicles listed
DODGE ARIES1989
DODGE OMNI1989
DODGE SHADOW1989
PLYMOUTH HORIZON1989
PLYMOUTH RELIANT1989
PLYMOUTH SUNDANCE1989

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