Hummer H2 2003–2005 — technical service bulletin

Bulletin 3367A · NHTSA communication 10017395 · issued Nov 7, 2005

Technical service bulletin

communication type

Suspension

component

2003–2005

model years

vehicle entries

Official summary

Rear air suspension - trim height tool set. *tt

Vehicles covered

2003 Hummer H2
2004 Hummer H2
2005 Hummer H2

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.