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-10-08-50-003B
Service Bulletin/Repair Instructions
GENERAL MOTORS: INFORMATION PROVIDED BY BULLETIN FOR ALL 2012 AND PRIOR GENERAL MOTOR TRUCKS AND PASSENGER VEHICLES REGARDING THE ADJUSTABLE COMFORT AND CUSTOM UPHOLSTERY OF THE DRIVER AND THE PASSENGER HEAD RESTRAINT. *PE
01T42
Service Bulletin/Repair Instructions
INFORMATION REGARDING NEW PROCEDURE FOR SUNROOF ACTUATOR TO MODULE TIMING. *SLC
01T43
Service Bulletin/Repair Instructions
SUBJECT REGARDING SUNROOF SERVICE PROCEDURES AND SERVICEABLE SUNROOF COMPONENTS. *JG
01T44
Service Bulletin/Repair Instructions
SUBJECT REGARDING SEAT BELT LATCH FALLS TO THE FLOOR OR IS DIFFICULT TO RETRIEVE WHEN PUTTING ON SEAT BELT. *JG
00T75
Service Bulletin/Repair Instructions
CUSTOMERS MAY COMMENT THAT THE INNER MIRROR TRIM PANEL ASSEMBLY ON EITHER THE LEFT OR RIGHT SIDE IS LOOSE OR DETACHED FROM THE DOOR. CUSTOMERS MAY ALSO COMMENT ABOUT A RATTLE NOISE COMING FROM THE INNER MIRROR TRIM PANEL AREA. *TT
00T79
Service Bulletin/Repair Instructions
SOME CUSTOMERS MAY COMMENT THAT THE VALET KEY OPENS THE REAR COMPARTMENT LID ON VEHICLES BUILT UP TO AND INCLUDING VIN 1Z275903. *TT