Oldsmobile Alero 2004 — technical service bulletin
Bulletin 1539 · NHTSA communication 10005378 · issued Jan 1, 2004
Technical service bulletin
communication type
Suspension
component
2004
model years
1
vehicle entries
Official summary
Bang or crunch type noise coming from the rear of vehicle when traveling over bumps (rear suspension). Sit bulletin 1409020. *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.