Cadillac Catera 1999–2001 — technical service bulletin
Bulletin 3636 · NHTSA communication 10018603 · issued Jan 7, 2006
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999–2001
model years
3
vehicle entries
Official summary
Dtc p0411 set for low flow detected from the secondary air injection (sai) system (air pump).
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.