- 2012 Single-source
no longer available on the 4GR69 models for 2013 (GM Authority 2013 changes); single-source: GM Authority 2013 changes does not credit GM
NWT Single-source
Also documented for Chevrolet
Documented applications
This page aggregates every documented appearance of NWT in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.