Cadillac Deville 2000–2003 — technical service bulletin
Bulletin 020137009 · NHTSA communication 10000742 · issued Dec 1, 2002
Technical service bulletin
communication type
Equipment
component
2000–2003
model years
4
vehicle entries
Official summary
Flutter noise with air conditioner on full cold, mode at bi-level, blower at med / hi and recirculation on. *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.