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Service bulletins for the 2009 Cadillac STS

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1080 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
PIP4786C2016-10-20. Service bulletin. ENGINE AND ENGINE COOLING. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE LOW OIL PRESSURE MESSAGE. TECHNICIAN MAY ALSO FIND A DIAGNOSTIC TROUBLE CODE P0521 IN THE ENGINE CONTROL MODULE. TECHNICIAN SHOULD FOLLOW ALL PUBLISHED SERVICE INFORMATION DIAGNOSIS. WHEN USING A SCAN TOOL IF THE OIL PRESSURE IS LOW BUT THE OIL PRESSURE AT THE OIL FILTER HOUSING IS CORRECT, TECHNICIAN SHOULD INSPECT THE VALVE LIFTER OIL FILTER FOR DEBRIS/SLUDGE THAT COULD BE RESTRICTING OIL FLOW TO THE OIL PRESSURE SENSOR. TECHNICIAN SHOULD REMOVE THE VALVE LIFTER OIL FILTER AND CLEAN IT. IF THE VALVE LIFTER OIL FILTER CANNOT BE CLEANED REPLACE IT.
PI1394A2016-10-19. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES ADDITIONAL INFORMATION ON HOW TO INSTALL PISTONS AND SUGGEST WHAT TOOLS TO USE.
030604017I2016-10-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. THIS INFORMATIONAL BULLETIN EXPLAINS THE USE OF DIESEL FUEL ADDITIVES IN AN ENGINE, ARE NOT REQUIRED UNLESS THE CUSTOMER DESIRES ADDITIVES TO PREVENT FUEL CONCERNS DEPENDING ON FUEL OR TEMPERATURE RELATED CONDITIONS.
030603004R2016-10-18. Service bulletin. ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON HOW TO TEST A BATTERY AND WHAT IS NEEDED TO WARRANTY A BATTERY.
000601026I2016-10-18. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETINS PROVIDES INFORMATION ON THE INTAKE MANIFOLD INSPECTION/REPLACEMENT AFTER SERVERE INTERNAL ENGINE DAMAGE.
000601012F2016-10-18. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION TO GM DEALERS ON THE CORRECT CLEANING METHODS WHEN CLEANING ENGINE GASKET SEALING SURFACES.
16-NA-0852016-10-05. Service bulletin. STRUCTURE; EQUIPMENT; ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON NEW DESIGN CYLINDER HEADS.
SB-07-06-01-016C2016-08-09. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION INTERNAL ENGINE NOISE OR DAMAGE AFTER OIL FILTER REPLACEMENT
PIP5216C2016-07-07. Service bulletin. ENGINE. If a vehicle comes into the dealership with a knock noise, seized engine, lower end squeak or squeal or any condition that you suspect a rod or main bearing failure.
PIP5038B2016-05-09. Service bulletin. ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SC-11340-C2016-04-26. Service bulletin. ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-11340-C2016-03-16. Service bulletin. EQUIPMENT; ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIP-52162014-11-08. Service bulletin. ENGINE. BUICK/CADILLAC/CHEVROLET/SATURN/PONTIAC/ GMC: VEHICLE EXPERIENCE LOWER END SQUEAK OR SQUEAL, KNOCKING NOISE OR SEIZED ENGINE POSSIBLY THE MAIN BEARING OR ROD HAD FAILED. *PE
PIP-3423-K2014-05-20. Service bulletin. ENGINE. GM: SOME DTC CODES MAY BE SET, P0016, P0017, P0018, P0019, P0008, OR P0009. 3.6 LY7 WITH CAM ACTUATOR DTC.THE RELUCTOR FOR THE CRANKSHAFT SENSOR PRESSED ON THE CRANKSHAFT MAY HAVE MOVED. ALSO INCLUDED BUICK ALLURE MODEL YEAR 2005. *JS
12-06-01-009-D2013-09-23. Service bulletin. ENGINE. GM: SOME VEHICLES REQUIRE REPLACEMENTS FOR HIGH FEATURE V6 TIMING CHAIN KITS AND GUIDE REPLACEMENTS. ALSO INCLUDED CHEVROLET CAPTIVA. MODEL YEARS 2007-2013. *JS UPDATED 7/18/14. *PE
PIP50382012-08-28. Service bulletin. ELECTRICAL SYSTEM:IGNITION; ENGINE. GENERAL MOTORS: SES LIGHT ENGINE MISFIRE AND/OR SHUDDER- INSPECT IGNITION COILS. THIS MAY BE THE RESULT OF A HEAT STRESSED/DAMAGED IGNITION COIL. *JS
SB-113402012-04-30. Service bulletin. ENGINE AND ENGINE COOLING. GM: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT- TIMING CHAIN WEAR. ON SOME 2007 MODEL YEAR VEHICLES THAT ARE EQUIPPED WITH A 2.8L/3.6L V6 ENGINE (LP1/LY7), UNDER CERTAIN DRIVING CONDITIONS, AND WITH THE VEHICLE'S ORIGINAL OIL CHANGE INTERVALS, THE TIMING CHAIN COULD WEAR PREMATURELY. *JS UPDATED 06/18/2012 *JS UPDATED 9/6/12. *PE UPDATED 1/24/13. *PE
PB-102872011-06-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ELECTRICAL SYSTEM:SOFTWARE. GM SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. IN CERTAIN DRIVING CONDITIONS OR IF IT'S BEEN A WHILE BETWEEN OIL CHANGES, THE TIMING CHAIN COULD WEAR PREMATURELY AND CAUSE THE ENGINE LIGHT TO TURN ON. *RM UPDATED 5/23/12. *PE
PI-0090-B2011-06-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. BUICK/CADILLAC/CHEVROLET/GMC/PONTIAC/SATURN: THERE MAY BE AN INTERMITTENT ENGINE HESITATION OR FLUTTER. THE CAMSHAFT SENSOR TERMINALS LIKELY HAVE POOR CONNECTIONS. *RM UPDATED 8/1/11. *PE UPDATED 4/16/12. *PE
08-06-01-011H2011-06-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GM: CHECK ENGINE LIGHT IS ON WITH MULTIPLE TROUBLE CODES PRESENT. *RM
PIE-00072011-03-10. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE AND ENGINE COOLING:ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). CADILLAC: ENGINEERING INFORMATION-ENGINE OVERHEATING, ENGINE COOLANT TEMPERATURE LIGHT ON, GAUGE READS HOT, A/C BLOWS WARM, CHECK ENGINE LIGHT ON, TRANSMISSION RELATED. DTCS. STS, CTS, CTS COUPE MODELS 09-11. *PE
PIE-00072010-03-15. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN; ENGINE AND ENGINE COOLING:COOLING SYSTEM. CADILLAC: E109144-ENGINE OVERHEATING, ENGINE COOLANT TEMPERATURE WARNING LIGHT ON, ENGINE COOLANT TEMPERATURE GAUGE READS HOT (ENGINEERING INFORMATION). THIS CONCERN ONLY APPLIES TO VEHICLES EQUIPPED WITH A SINGLE COOLING FAN. *PE

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.