GMC S Series 1998 — technical service bulletin
Bulletin 990842002 · NHTSA communication 606093 · issued May 1, 1999
Technical service bulletin
communication type
Exterior Lighting
component
1998
model years
3
vehicle entries
Official summary
Some customers may complain that the daytime running lights are inoperative. *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.