Hummer H2 2003–2005 — technical service bulletin
Bulletin 3461 · NHTSA communication 10017239 · issued Oct 29, 2005
Technical service bulletin
communication type
Suspension
component
2003–2005
model years
3
vehicle entries
Official summary
Rear air suspension in-op dtc c0563. *tt
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.