Hummer H2 2003–2007 — technical service bulletin
Bulletin 050089078 · NHTSA communication 10020762 · issued Sep 1, 2006
Technical service bulletin
communication type
Fuel System, Gasoline
component
2003–2007
model years
10
vehicle entries
Official summary
Fuel system treatment plus, fuel sending unit corrosion and fuel system deposits. 2007 and prior gm passenger cars and trucks including saturns. *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.