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.
PIC4696E
Service Bulletin/Repair Instructions
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code. The PI update to version D is to advise the unlock procedure is temporarily unavailable. E version update is to add administrative details.
PIC4696D
Service Bulletin/Repair Instructions
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code. The PI update to version D is to advise the unlock procedure is temporarily unavailable.
PIC4696C
Service Bulletin/Repair Instructions
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code.
130089009
Service Bulletin/Repair Instructions
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
99046B
Service Bulletin/Repair Instructions
SUBJECT REGARDING 99046 (B) SPECIAL POLICY- HIGH/LOW/HIGH ABS BRACK ANOMALY. *MJS
000850002
Service Bulletin/Repair Instructions
CONCERNS WITH PREMATURE WEARE OF THE COVER MATERIAL ON THE DRIVER'S OR PASSENGER SEAT CUSHION IN THE OUTBOARD RECLINER HINGE AREA. *TT
99046
Service Bulletin/Repair Instructions
NHTSA HAS IDENTIFIED AND GENERAL MOTORS CORPORATION HAS CONFIRMED, THE EXISTENCE OF A CONDITION IN THE ANTILOCK BRAKING SYSTEM ON SOME VEHICLES EQUIPPED WITH THE LUCAS VARITY THREE-SENSOR ABS SYSTEM. *TT