Cadillac Seville 1998–2001 — technical service bulletin
Bulletin 030139001 · NHTSA communication 10001241 · issued Mar 1, 2003
Technical service bulletin
communication type
Equipment
component
1998–2001
model years
4
vehicle entries
Official summary
Rear hvac blower control knob may fall off. *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.