Grand Prix V6-191 3.1L (1989)
1.
Remove wheel cover, using care to avoid damage to cover and wheel surfaces.
2.
Thoroughly clean outer surface of wheel using appropriate cleaning materials and tools.
NOTICE:
Wheel must be cleaned to assure correct reading and interpretation of date code stamped on the center portion of wheel.
3.
Read and record on the repair order, the date code data stamped on center portion of wheel in the following order (see figure).
A.
Manufacturer, Plant and Year Codes
B.
Disc Code
C.
Day Code is not to be considered
If codes match any of the combinations listed in the chart or are unreadable/illegible, the wheel must be replaced.