Isuzu Hombre 1997–2000 — technical service bulletin
Bulletin 0405S001 · NHTSA communication 10006092 · issued Jan 1, 2004
Technical service bulletin
communication type
Power Train
component
1997–2000
model years
4
vehicle entries
Official summary
Harsh 1-2 upshift and malfunction indicator lamp (mil) illuminated with diagnostic trouble code (dtc) p1870 set. *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.