Buick Lesabre 1998 — technical service bulletin
Bulletin 98003 · NHTSA communication 600193 · issued Feb 1, 1998
Technical service bulletin
communication type
Electrical System
component
1998
model years
5
vehicle entries
Official summary
Information on spark plug tip erosion calibration pcm reflash. *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.