- 2015 Factory-verified
18 x 8 steel spare; the 2015 guides print it with the PYR wording and mark it no longer available from September 18, 2014; Sierra: not offered; SLE, SLT: O
PTW Factory-verified
Also documented for CadillacChevrolet
Documented applications
This page aggregates every documented appearance of PTW in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.