Chevrolet Express 2011–2013 — technical service bulletin
Bulletin PIE-0253 · NHTSA communication 10052205 · issued Apr 1, 2013
Technical service bulletin
communication type
Engine and Engine Cooling
component
2011–2013
model years
12
vehicle entries
Official summary
General motors: service engine soon light illuminated on dash. There may also be increased engine noise, or possible higher rpm shifts, and reduced a/c performance. *kb
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.