Cadillac Catera 1997–2000 — technical service bulletin
Bulletin 01037 · NHTSA communication 623422 · issued Jun 15, 2001
Technical service bulletin
communication type
Engine and Engine Cooling
component
1997–2000
model years
4
vehicle entries
Official summary
Vehicles may experience a hole in the secondary air injection hose between the check valve and shut off valve. *slc
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.