Cadillac Deville 2000–2005 — technical service bulletin
Bulletin 050854002 · NHTSA communication 10017500 · issued Sep 1, 2005
Technical service bulletin
communication type
Electrical System
component
2000–2005
model years
6
vehicle entries
Official summary
Horn(s) inoperative (install new horn(s) in a rearward facing position). *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.