Chevrolet C Series 1999 — technical service bulletin
Bulletin 990848001 · NHTSA communication 606578 · issued Apr 1, 1999
Technical service bulletin
communication type
Visibility
component
1999
model years
8
vehicle entries
Official summary
Concerns with wind noise from rear quarter window. *tt
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.