Chevrolet Express 2011–2012 — technical service bulletin
Bulletin PI-0759 · NHTSA communication 10045519 · issued Jul 1, 2012
Technical service bulletin
communication type
Electrical System
component
2011–2012
model years
8
vehicle entries
Official summary
Gm-express/silverado/savana/sierra: due to poor connections and intermittent condition of map sensor connector wiring harness terminal crimps, trucks have a malfunction indicator lamp (mil) illumination and reduced engine power display message. *pe
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.