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
PIP-4695
Service Bulletin/Repair Instructions
GM: LOSS OF POWER HESITATES ON ACCELERATION. 4.3, 4.8, 5.3, 5.7 AND 6.0 ENGINES COUPLED WITH THE 4L60E OR 4L65E MAY EXPERIENCE A CONDITION OF HESITATES, MISSES OR LOSS OF POWER UNDER ACCELERATION. THE VEHICLE MAY OPERATE AS IF IT IS IN REDUCED POWER MODE. *PE
SB-06-02-32-013B
Service Bulletin/Repair Instructions
SAAB/HUMMER/GM: DIAGNOSTIC TIPS/RECOMMENDATIONS WHEN POWER STEERING PUMP REPLACEMENT IS NECESSARY. ANALYSIS OF RETURNED POWER STEERING (PS) PUMPS THAT HAD BEEN REPLACED FOR NOISE, NO POWER ASSIST, NO OR LOW PRESSURE AND LEAKING CONDITIONS HAS INDICATED A HIGH NUMBER OF NO TROUBLE FOUND RESULTS. ALL 1997-2010 VEHICLES AND LIGHT TRUCKS; 2010 AND PRIOR HUMMERS H2/H3 AND SAAB 9-7X VEHICLES. *PE
000850014
Service Bulletin/Repair Instructions
SOME CUSTOMERS MAY COMMENT THAT THE DRIVER'S BUCKET SEATBACK MOVES FORWARD ABOUT 25 TO 38 MM (1 TO 1-1/2 INCHES) DURING MODERATE TO HEAVY BRAKING. *TT
00045
Service Bulletin/Repair Instructions
SUBJECT REGARDING FRONT SAFETY BELT COMPLIANCE. *TT
990848001A
Service Bulletin/Repair Instructions
EXPERIENCING WIND NOISE FROM BODY SIDE QUARTER WINDOW. *TT
990730024
Service Bulletin/Repair Instructions
A CONDITION WITH DRIVELINE VIBRATION / GROWL NOISE. *TT