Chevrolet Malibu 2003 — technical service bulletin
Bulletin 01477 · NHTSA communication 10005512 · issued Jan 1, 2004
Technical service bulletin
communication type
Power Train
component
2003
model years
3
vehicle entries
Official summary
4t45e 4t40e automatic transmission false diagnostic trouble code (dtc) p1815. *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.