C99 ✓ Factory-verified

Hummer · Regular Production Option

Switch, inflatable restraints, instrument panel module manual suppression

Years 2007–09 Models 1 Factory citations 2

Query this via API →

Also documented for ChevroletGMCPontiac

Documented applications

H2 and H2 SUT — GMT820 (2003–2009) →

• 2007–2009 ✓ Factory-verified

  the 2007–2009 lists print "Mdl"; GM's other lists mostly print "Module".

  ⛭ GM factory document — 2007 hummer h2 rpo code list, p.1.

  ⛭ GM factory document — 2009 hummer h2 rpo code list, p.1.

This page aggregates every documented appearance of C99 in the Hummer reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.