Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
SB-07-06-04-019A
Service Bulletin/Repair Instructions
GENERAL MOTORS: INTERMITTENT MIL/SES/ DTC P2138 WITH REDUCED ENGINE POWER (REPAIR INSTRUMENT PANEL (IP) TO BODY HARNESS CONNECTOR). 2005-08 GM PASSENGERS CARS/LIGHT DUTY TRUCKS (INCL. SATURNS). *PE UPDATED 11/5/10. *PE UPDATED 4/4/11. *PE UPDATED 2/3/16. *PE
05-02-32-008D
Service Bulletin/Repair Instructions
GENERAL MOTORS: DIAGNOSING POWER STEERING CONCERNS. IN RARE CASES, CUSTOMERS MAY COMMENT ON A LACK OF STEERING ASSIST WHEN STOPPED OR DURING PARKING LOT TYPE OF MANEUVERS. *JS UPDATED 09/02/14*LJ
PIP-4379-D
Service Bulletin/Repair Instructions
CHEVROLET/GMC: DELAYED OR NO DRIVE AND DELAYED OR NO REVERSE WITH DTC'S, RANGE INHIBIT. MODEL YEARS 2001-2013. *PE UPDATED ON 06/08/2011. *KB UPDATED ON 06/16/2011. *KB UPDATED 11/26/12. *PE UPDATED 12/4/2013 *JS
PIT3078F
Service Bulletin/Repair Instructions
This Preliminary Information communication provides information to the technician about vehicles that have grease leaking from front hub bearings. Technician should not replace the bearing for grease purge. Technician should be advised to not clean the purged grease from the area immediately on or adjacent to the seals because this grease provides additional protection. Technician should only replace the bearing if the seals show visible damage, bearing endplay is greater than 0.005" or 0.13mm, bearing exhibits rough rotation, or bearing exhibits abnormal noise.
PIT-3749D
Service Bulletin/Repair Instructions
GM: ON SOME TRUCK MODELS THERE IS SOME FRAME CORROSION. *RM UPDATED ON 5/2/2012. *KB
PIT-5141
Service Bulletin/Repair Instructions
BUICK/CADILLAC/CHEVROLET/GMC/OLDSMOBILE: IF BLOWER MOTOR IS SET TO ANY SPEED POSITION AND WHEN KEY IS OFF, IT BECOMES INOPERATIVE AND MAY STILL BE INOPERATIVE AFTER KEY IS TURNED ON. *PE UPDATED ON 5/1/12. *JS
SB-09-06-03-004A
Service Bulletin/Repair Instructions
GM/HUMMER/SAAB: INTERMITTENT ILLUMINATION OF MIL, SERVICE LAMPS, SERVICE MESSAGES, OR DTC SET BY VARIOUS CONTROL MODULES-DIAGNOSING AND REPAIRING FRETTING CORROSION (DISCONNECT AFFECTED CONNECTOR AND APPLY DIELECTRIC LUBRICANT). *PE UPDATED 3/26/10. *PE UPDATED 6/6/11. *PE UPDATED 3/12/12. *PE
PIP-3366-B
Service Bulletin/Repair Instructions
CADILLAC/CHEVROLET/GMC/HUMMER: SOME SUVS AND TRUCKS ARE EXHIBITING A CONDITION WHERE BY GRINDING/RATCHETING TYPE NOISE COMING FROM AUTOMATIC TRANSMISSION WHEN SHIFTING INTO PARK WHILE IN 4WD LOW (4LO) RANGE. *PE
05-09-40-002E
Service Bulletin/Repair Instructions
GM: SERVICE BULLETIN EXPLAINING WHEN THE SAFETY BELTS ARE SUPPOSED TO LOCK. *RM UPDATED 12/6/11. *PE
PI-0474
Service Bulletin/Repair Instructions
GM: AN 'ENGINE POWER IS REDUCED' MESSAGE APPEARS AND THERE IS A STORED TROUBLE CODE. THIS IS CAUSED BY WEAR OF THE INTERNAL FUEL INJECTOR. *RM
050232008
Service Bulletin/Repair Instructions
GEAR BOX POWER STEERING PUMP, P/S PERFORMANCE CONCERNS. *NJ UPDATED ON 6/30/2011. *KB
SB-02-06-04-0371
Service Bulletin/Repair Instructions
CHEVROLET/GMC: CHECK ENGINE LIGHT ON, FUEL TANK HARD TO FILL, DTCS P0442, P0446, P0455 OR P0449 SET (REPLACE EVAPORATIVE EMISSION (EVAP) VENT VALVE SOLENOID ASSEMBLY AND ADD/RELOCATE FILETER BOX USING SERVICE KIT). *PE
3586
Service Bulletin/Repair Instructions
DIESEL ENGINE GLOW PLUG TROUBLE CODES. *TT UPDATED 3/15/10. *PE
SB-08-06-04-029B
Service Bulletin/Repair Instructions
GENERAL MOTORS: LBZ, LLY, LMM MIL/SES LIGHT N DTC P0087-FUEL RAIL PRESSURE (FRP) TOO LOW, LACK OF PERFORMANCE, NO POWER, ENGINE RUNS ROUGH, NO START (DIAGNOSE FUEL SYSTEM COMPONENTS). *PE UPDATED 3/1/10. *PE
3187
Service Bulletin/Repair Instructions
ENGINE LOW POWER WILL NOT GO OVER 2300 RPMS. *EH UPDATED 6/11/10. *PE
PIP-4629
Service Bulletin/Repair Instructions
CHEVROLET/GMC: DIESEL ENGINE TURBO DTC P2563 OR P003A. MAY ENCOUNTER A CONCERN OF SES LIGHT, REDUCED POWER, LOW POWER. *PE
PIT-4662
Service Bulletin/Repair Instructions
GMC: SIR MIL DTC B0084 AND/OR B0085. THIS CONCERN COULD BE CAUSED BY BROKEN SEAT POSITION SENSOR CIRCUITS UNDER THE DRIVER OR PASSENGER FRONT SEATS. OVER TIME, FROM REPEATED SEAT MOVEMENT, THE WIRING COULD BREAK. *PE