Chevrolet Express 2010–2011 — technical service bulletin
Bulletin 11-06-04-001 · NHTSA communication 10037554 · issued Feb 1, 2011
Technical service bulletin
communication type
Engine and Engine Cooling
component
2010–2011
model years
6
vehicle entries
Official summary
Gm: the malfunction light is on and the engine performance is poor. *rm updated on 6/14/2011. *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.