Dodge Aries 1989 — technical service bulletin
Bulletin RCL/637 · NHTSA communication 41031 · issued Apr 1, 1995
Technical service bulletin
communication type
Electrical System
component
1989
model years
6
vehicle entries
Official 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
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.