Chevrolet Corvette 1997–1998 — technical service bulletin
Bulletin 98831511 · NHTSA communication 601907 · issued Jun 1, 1998
Technical service bulletin
communication type
Structure
component
1997–1998
model years
2
vehicle entries
Official summary
Discoloration or staining of plenum (cowl) air inlet screen / grille / panel. *yc
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.