Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Cadillac for this TSB. Call your local Cadillac dealer's service department & ask for a copy of TSB# SB-09-06-04-003A.
CADILLAC: CHECK ENGINE LIGHT ON, DTC P0174 SET (CHECK FOR VACUUM LEAK AND REPLACE ECM, IF NECESSARY). IF THE UPDATED ECM IS INSTALLED WITHOUT OBTAINING THE 2009 MODEL YEAR CALIBRATIONS, THE VEHICLE MAY RETURN WITH A P0174 AGAIN. *PE
