Nissan Altima 1999–2000 — technical service bulletin
Bulletin NTB00053 · NHTSA communication 613952 · issued Jun 19, 2000
Technical service bulletin
communication type
Power Train
component
1999–2000
model years
4
vehicle entries
Official summary
Some applied vehicles may exhibit a chirp noise as the automatic transmission shifts from 2nd to 3rd gear, particularly when accelerating the vehicle with only 1/8 throttle applied, the noise may be coming from the high clutch assembly during operation. *tt
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.