- 2000, 2001, 2004, 2005 Factory-verified
2004 and 2005 lists read "Left Hand Headlamps, Rule of the Road".
T72 Factory-verified
Also documented for CadillacChevroletPontiac
Documented applications
This page aggregates every documented appearance of T72 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.