WenmarOpen by Wenmar Pro

Service bulletins for the 2008 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.

1037 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
PIP4554H2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary Information communication provides the technician with the steps on repairing a clunk noise after shifting from reverse to drive or drive to reverse and then accelerating. The concern is only with rear wheel drive 6L45 or 6L50 automatic transmissions with Regular Production Option Code MYA or MYB apply. Apply thread locker to the transmission output shaft flange splines and install a new front propeller shaft flange nut. Apply thread locker to the new propeller shaft flange nut if it does not contain a pre-applied adhesive patch.
PIP4112N2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle. This is considered normal operation of the vehicle the throttle is delayed and opened slowly up to .7 seconds to help minimize driveline lash and clunking or will have approximately .5 seconds of zero torque to allow the transmission to shift to first gear.
PIP4554J2017-08-15. Service bulletin. WHEELS; POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. This Preliminary Information communication provides the technician with the steps on repairing a clunk noise after shifting from reverse to drive or drive to reverse and then accelerating. The concern is only with rear wheel drive 6L45 or 6L50 automatic transmissions with Regular Production Option Code MYA or MYB apply. Apply thread locker to the transmission output shaft flange splines and install a new front propeller shaft flange nut. Apply thread locker to the new propeller shaft flange nut if it does not contain a pre-applied adhesive patch.
PIP-4554-M2016-08-24. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH THE STEPS ON REPAIRING A CLUNK NOISE AFTER SHIFTING FROM REVERSE TO DRIVE OR DRIVE TO REVERSE AND THEN ACCELERATING. THE CONCERN IS ONLY WITH REAR WHEEL DRIVE 6L45 OR 6L50 AUTOMATIC TRANSMISSIONS WITH REGULAR PRODUCTION OPTION CODE MYA OR MYB APPLY. APPLY THREAD LOCKER TO THE TRANSMISSION OUTPUT SHAFT FLANGE SPLINES AND INSTALL A NEW FRONT PROPELLER SHAFT FLANGE NUT. APPLY THREAD LOCKER TO THE NEW PROPELLER SHAFT FLANGE NUT IF IT DOES NOT CONTAIN A PRE-APPLIED ADHESIVE PATCH.
SB-16-NA-1302016-08-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON HOW TO INSPECT THE UPPER VALVE BODY TO DETERMINE THE CORRECT RPO USAGE TO CORRECT A CONCERN THAT AFTER INSTALLATION OF A REPLACEMENT UPPER VALVE BODY, THE TRANSMISSION MAY HAVE NO REVERSE AND NO 2ND GEAR DUE TO THE INSTALLATION OF THE INCORRECT UPPER VALVE BODY.
SB-03-07-29-004K2016-08-06. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. THIS INFORMATIONAL BULLETIN PROVIDE INFORMATION ON THE OPERATING CHARACTERISTICS OF A MANUAL TRANSMISSION.
PI-07732014-07-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. CADILLAC/CHEVROLET/GMC/HUMMER/PONTIAC: THERE IS SLIPPING OR HAVE NO FOURTH, FIFTH OR SIXTH GEAR AND MALFUNCTION INDICATOR LAMP (MIL) WOULD BE ON, WITH DIAGNOSTIC TROUBLE CODE (DTC) P0796 FOUND AS ACTIVE. *PE
SB-10-04-20-001E2013-06-25. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. CADILLAC: REAR AXLE IS MAKING A CHATTER NOISE DURING TURNING. MAY ALSO MAKE A CLUNKING SOUND DURING TURNING AS WELL. *KB
SB-10287-B2012-04-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). GM: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. PREMATURE TIMING CHAIN WEAR- REPROGRAM ENGINE CONTROL MODULE. VEHICLES EQUIPPED WITH A HFV6 ENGINE, UNDER CERTAIN DRIVING CONDITIONS, AND WITH EXTENDED OIL CHANGE INTERVALS, THE TIMING CHAIN COULD WEAR PREMATURELY AND CAUSE THE ILLUMINATION OF THE SERVICE ENGINE SOON LIGHT. *JS
PIP-4317D2011-05-25. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. GM: THERE MAY BE A LEAK FROM THE TRANSMISSION. THE LEAK MAY COME FROM THE MANUAL SHAFT PLUG. *RM
SB-09-07-30-014A2011-03-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. CADILLAC: RUMBLE, GRIND, TICKING OR RATTLE TYPE NOISE WHILE DRIVING, OUTPUT SHAFT SPALLING (REPLACE OUTPUT SHAFT AND BEARING). *PE
PIP-45902009-08-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. CADILLAC: NO FORWARD OR REVERSE AT LAUNCH, OUTPUT SHAFT BROKEN - KEYWORDS INOPERATIVE MOVE NO. *PE UPDATED 11/15/10. *PE
PIP43332008-04-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). DTC'S P0011, P0014, P0021, P0024, P0341, P0346, P0366, OR P0391. WITH 3.6 LY7 OR LLT. *NJ
PIP43042008-04-07. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. DTC P0878, P2714, P2723, TRANSMISSION SLIPS IN 1ST, 2ND, 3RD, OR 4TH GEARS AND/OR LONG GARAGE SHIFTS TO DRIVE, EQUIPPED WITH A 6L50 (MYB), 6L80 (MYC), OR 6L90 (MYD) TRANSMISSION. *NJ
07-07-30-0322008-03-31. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL). SHIFTER BINDS, IGNITION KEY STICKS, [SHIFT TO PARK] MESSAGE DISPLAYED ON DRIVER INFORMATION CENTER (DIC), DEAD BATTERY (ADJUST SHIFT LINKAGE). *NJ
42922008-01-31. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DTC P0756, P0796, P2714, P2723, TCC SHUDDER OR HARSH ENGAGEMENT, HARSH SHIFTS, WATER IN TRANSMISSION - KEYWORDS CODE CONVERTER FLUID TORQUE. EQUIPPED WITH 6L50, 6L80 OR 6L90 (RPO'S MYB, MYC, MYD) AUTOMATIC TRANSMISSION. *NJ
43022008-01-31. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. DTC P0751, P0756, P0776, P0796, P2714, P2723, HARSH TCC ENGAGEMENT. EQUIPPED WITH 6L80 (RPO MYC) AUTOMATIC TRANSMISSION. *NJ
40522007-09-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 2-3 UPSHIFT SLIP OR FLARE. *KB

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