Cadillac Deville 2000–2001 — technical service bulletin
Bulletin 010101 · NHTSA communication 617758 · issued Jan 1, 2001
Technical service bulletin
communication type
Power Train
component
2000–2001
model years
7
vehicle entries
Official summary
Gm powertrain is investigating a whining noise in the 4t80e transmission due to spalling / pitting on the drive and / or driven sprocket thrust bearings. *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.