Hummer H2 2003–2006 — technical service bulletin

Bulletin 050603002 · NHTSA communication 10017463 · issued Jul 1, 2005

Technical service bulletin

communication type

Electrical System

component

2003–2006

model years

vehicle entries

Official summary

Battery and charging system electrical diagnostics. 1997 - 2006 all gm cars and trucks. *tt

Vehicles covered

2003 Hummer H2
2004 Hummer H2
2005 Hummer H2
2006 Hummer H2
2006 Hummer H3

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.