Chevrolet Silverado 1500 2007–2009 — technical service bulletin
Bulletin 09184C · NHTSA communication 10089486 · issued Dec 9, 2015
Technical service bulletin
communication type
Equipment
component
2007–2009
model years
6
vehicle entries
Official summary
"09184c - customer satisfaction program (revised service procedure). This bulletin has been revised to clarify step 5 of the service procedure. Certain 2007-2009 model year chevrolet silverado and gmc sierra vehicles currently or previously registered in alaska, connecticut, delaware, district of columbia, illinois, indiana, iowa, maine, maryland, massachusetts, michigan, minnesota, missouri, new hampshire, new jersey, new york, ohio, pennsylvania, rhode island, vermont, west virginia, and wisconsin may have a condition in which the sensing and diagnostic module (sdm) may corrode due to a sign
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.