Hummer H2 2003–2005 — technical service bulletin
Bulletin 3324 · NHTSA communication 10017176 · issued Oct 27, 2005
Technical service bulletin
communication type
Suspension
component
2003–2005
model years
3
vehicle entries
Official summary
Service air suspension message after replacing the air suspension compressor assembly from a single stage compressor to a dual stage compressor. May also have a current or history code c0660 and/or c0712. *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.