Cadillac Deville 2001 — technical service bulletin
Bulletin 4T80E · NHTSA communication 625069 · issued Jan 1, 2001
Technical service bulletin
communication type
Power Train
component
2001
model years
4
vehicle entries
Official summary
Subject regarding possible issues with the internal mode switch for automatic transmissions. *jg
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.