- 2002–2009 Factory-verified
DR1 Factory-verified
Also described as Mirror, outside, left-hand and right-hand, manual control, color
Also documented for BuickChevroletOldsmobilePontiac
Documented applications
- 1998 Factory-verified
- 1998 Factory-verified
- 1998 Factory-verified
This page aggregates every documented appearance of DR1 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.