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Service bulletins for the 2005 Cadillac CTS

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.

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

By type

By component

By trouble code

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

Bulletins, newest first
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.
080730035C2018-05-21. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
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
10-04-20-001F2017-08-15. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. This technical bulletin provides a procedure to replace the rear differential fluid if the rear axle has a clunk or chatter noise on turns.
PIC5460B2017-08-15. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles with a no crank concern or they are unable to remove their key from the ignition lock cylinder may find Diagnostic Trouble Codes P0318, P1629, U1040, U1064, U1153, U1192, and U1300 stored in the Engine Control Module. Other Class 2 modules may have a U0100 and/or U1000 code stored. These concerns may be caused by an Ignition 1 Power Feed (circuit 5290) or Class 2 (circuit 1807) wiring concern to the Engine Control Module. If the electrical center ignition relay feedback parameter in the Engine Control Module is not battery voltage, measure the voltage at the Engine Control Module fuse in the under-hood fuse block. If voltage is less than battery voltage, check to make sure the Power Control Module is turning the relay on via circuit 5069. If there is battery voltage at the Engine Control Module fuse, check Ignition 1 (circuit 5290) between the fuse and the Engine Control Module. If Ignition 1 (circuit 5290) to the Engine Control Module checks ok, check for a possible open in the Class 2 (circuit 1807) to the Engine Control Module. If all connections and wiring are OK, suspect a possible relay or an ECM concern.
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®.
06-00-89-026L2017-08-15. Service bulletin. SERVICE BRAKES; EQUIPMENT:ELECTRICAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER; POWER TRAIN:AXLE ASSEMBLY; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND.
SB-07-07-31-001E2016-04-26. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
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
SB05-04-114-001B2010-06-02. Service bulletin. SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY; POWER TRAIN:DRIVELINE. CADILLAC: CONTROLLING REAR AXLE OR WHEEL HOP ON FULL THROTTLE APPLICATION FROM A STANDSTILL AND/OR FULL THROTTLE 1-2 SHIFT (INSTALL SUPPLEMENTARY REAR SUB-FRAME BUSHINGS). *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
0607300202007-01-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. INTERMITTENT ENGINE CHUGGLE AT HIGHWAY SPEEDS DURING LIGHT THROTTLE LOAD. (REPROGRAM TRANSMISSION CONTROL MODULE (TCM)). *KB
36712006-02-17. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. REAR AXLE PINION SEAL MAY EXPERIENCE A FLUID LEAK CONDITION. *TT UPDATED 04-26-07. *KB
05041140012005-11-08. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. CONTROLLING REAR AXLE OR WHEEL HOP ON FULL-THROTTLE APPLICATION FROM A STANDSTILL AND/OR FULL-THROTTLE 1-2 SHIFT (INSTALL SUPPLEMENTARY REAR SUB-FRAME BUSHINGS) *TT UPDATED 4/14/08. *NJ
0507310012005-11-05. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY. CLUTCH PEDAL DOES NOT RETURN TO UP POSITION DURING SHIFTS AT HIGH ENGINE RPMS. *TT
0507290032005-11-04. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. AISIN AY6 6-SPEED MANUAL TRANSMISSION RPO MV1 SERVICE INFORMATION. *TT
32772005-10-27. Service bulletin. POWER TRAIN. 5L40E/5L50E FLUID LEAK FROM BELL HOUSING AREA. *SC
34252005-10-24. Service bulletin. POWER TRAIN:DRIVELINE. DRIVE LINE VIBRATION / MOAN NOISE IN SIXTH GEAR. *TT
33922005-09-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THE 5L40E AND 5L50E AUTOMATIC TRANSMISSION MAY EXPERIENCE A CONDITION OF HIGH TCC SLIP SPEED AND OR DTC P0741. *TT UPDATED 09-26-07. *KB
35132005-09-21. Service bulletin. POWER TRAIN. INTERMITTENT BLOCK OUT OF FIRST GEAR FROM A STOP. *TT
6092005-09-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. OPERATING CHARACTERISTICS OF 5L40E/5L5OE TRANSMISSIONS. *SC
32682005-05-12. Service bulletin. POWER TRAIN. INTERMITTENT UNWANTED DOWNSHIFT, NO UPSHIFT 5L40E/5L50E. *TT
0404170032005-03-12. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. DRIVELINE VIBRATION MOAN NOISE AT HIGHWAY SPEEDS. *EH
31682004-12-02. Service bulletin. POWER TRAIN:DRIVELINE:DRIVESHAFT. SINGLE ORDER PROPSHAFT SPEED VIBRATION AT HIGHWAY SPEEDS. *EH
040729003A2004-11-30. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. MISMACHINED TRANSMISSION COUNTERSHAFT SNAP RING GROOVE. *TT UPDATED *EH

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