- 2000, 2001 Factory-verified
N12 Factory-verified
Also described as Exhaust, rear exit
Also documented for CadillacChevroletOldsmobilePontiac
Documented applications
- 1999–2005 Factory-verified
- 1998–2002 Factory-verified
- 2006–2010, 2014–2018 Factory-verified
- 1999–2007 Factory-verified
- 2000–2004 Factory-verified
- 2000–2002, 2004–2006 Factory-verified
the 2002 list words it "Rear Exit Tail Pipe"
- 2007–2009 Factory-verified
This page aggregates every documented appearance of N12 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.