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Service bulletins for the 2006 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.

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

By type

By component

By trouble code

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Only bulletins with component: Automatic transmission are shown. Show all

Bulletins, newest first
16-NA-1302023-03-08. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY. This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear.
06-00-89-031D2021-09-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN; ENGINE. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
1308116001F2020-12-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION. The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
09-07-30-018D2018-06-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT. This informational bulletin provides a revision for 09-07-30-018C to add the 2014 model year and update the Labor Operation.
01-07-30-042H2018-05-21. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; POWER TRAIN. This information was created to inform the technician that the 2-3 upshift and the 3-2 downshift clunk is caused by the releasing of the 2-4 band and application of the 3-4 clutch assembly during an upshift. Also during a 3-2 downshift, the releasing of the 3-4 clutch during the application of the 2-4 band, can cause torque reversal down the output shaft creating a clunk. This is a normal condition.
1203100022017-12-22. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. This informational bulletin provides a description of the proper wheel installation and proper wheel torque techniques used to install wheels onto vehicles
09-07-30-018C2017-10-12. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION. This warranty administration bulletin provides information on the change in automatic transmission add conditions documentation and claim submissions
PIC3520C2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about a failed module programming or difficulty performing certain diagnostic procedures due to the ignition not being in the "Ignition On, Engine Off" mode. Technician will need to press and hold the ACC/OFF portion of the Start/ACC/OFF mode button for 5 seconds with a valid keyless entry transmitter inside the vehicle and the transmission in Park or Neutral.
02-07-30-052J2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. This informational bulletin provides technicians with information regarding automatic transmission oil cooler flow test essential tool J-45096 TransFlow®.
PIP4112M2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 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.
PIP4112L2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 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.
PIC4740D2017-08-15. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This Preliminary Information communication provides information to the technician about vehicles with the Service Engine Soon light is on, Reduced engine power message, no crank, multiple warning lights on, transmission shifts hard, or the door locks cycle while driving. The Transmission Control Module or Engine Control Module may not communicate. With Diagnostic Trouble Codes C0242, C0561, P0575, P0615, P0700, P0856, P1629, P2544, U0073, U0074, U0100, U0109, U0121, U0140, U2100, U2105, and / or U2106 stored. The technician is to inspect the transmission X1 connector terminals for loose or poor fit. Disconnect the X1 connector and carefully tug on each wire to insure pins are fully seated. A side load on the wires may also cause a false positive lock. Technician is to repair the connections as necessary.
PIC4740C2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:WIRING. This Preliminary Information communication provides information to the technician about vehicles with the Service Engine Soon light is on, Reduced engine power message, no crank, multiple warning lights on, transmission shifts hard, or the door locks cycle while driving. The Transmission Control Module or Engine Control Module may not communicate. With Diagnostic Trouble Codes C0242, C0561, P0575, P0615, P0700, P0856, P1629, P2544, U0073, U0074, U0100, U0109, U0121, U0140, U2100, U2105, and / or U2106 stored. The technician is to inspect the transmission X1 connector terminals for loose or poor fit. Disconnect the X1 connector and carefully tug on each wire to insure pins are fully seated. A side load on the wires may also cause a false positive lock. Technician is to repair the connections as necessary.
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.
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.
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-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
08-08-49-0012008-03-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). INACCURATE FUEL GAGE READINGS, FUEL GAGE READS EMPTY WHEN THERE IS FUEL IN TANK, FUEL LEVEL LOW MESSAGE IN DIC, DTC P2066 SET (REPROGRAM ECM). WITH 2.8L OR 3.6L ENGINE (VINS T, 7 - RPO'S LP1, LY7). *NJ
40522007-09-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 2-3 UPSHIFT SLIP OR FLARE. *KB
0707300152007-06-22. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 6T70, 6T75, 6L50, 6L80, OR 6L90. AUTOMATIC TRANSMISSION - INFORMATION ON TRANSMISSION FLUID PRESSURE (TFP) SWITCH CHECK FOR FALSE DTC'S P0842, P0843, P0872, P0873, P0877, P0878, P0989, OR P0990. *KB
36492007-03-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. AUTOMATIC TRANSMISSION, BUSY SHIFTING, MIL ILLUMINATED, DTC P1751. *KB
0607300312007-01-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DIAGNOSIS FOR SERVICE FAST LEARN ADAPTS FAILS, NO FORWARD OR NO REVERSE, DTC P0796, P2723, P2763 SET. *KB
0607300302007-01-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 5L50-E TRANSMISSION TORQUE CONVERTER CLUTCH (TCC) SURGE, SHUDDER OR CHUGGLE (REPROGRAM TCM). *KB
37352006-05-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. 6L80 LEAK FROM THE TRANSMISSION COOLER LINES. *AK
0507300222005-12-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 2006 MODEL YEAR 6L80 AUTOMATIC TRANSMISSION EXCHANGE PROGRAM. *TT

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