Technical Service Bulletins
Search 172,063 manufacturer communications covering 880 vehicle makes from 1955 to 2025.
Showing 722 bulletins for GMC
130602
Jun 13, 2002
980000 UNKNOWN OR OTHER
INFORMATION REGARDING A NEW PROCESS INTENDED TO ACHIEVE MORE EXPEDIENT PRODUCT CONCERN RESOLUTIONS. *TT
020399001
Jun 1, 2002
020000 SUSPENSION
CONCERNS WITH REAR OF VEHICLE SITTING LOW, ELECTRONIC CONTROLLED AIR SUSPENSION (CEAS) COMPRESSOR RUNS - WILL NOT LIFT REAR TO OPERATING HEIGHT. *TT
10WT02
Jun 1, 2002
980000 UNKNOWN OR OTHER
SUBJECT ON CANCELLATION AND RELEASE OF WTEC 2 ECU, ALL WTEC 2.*JB
16TR02
Jun 1, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
INFORMATION REGARDING CENTER SUPPORT BOLT, EQUIPMENT AFFECTED, HT/CLBT 700 AND MT 600.*JB
171K2K02
Jun 1, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
SUBJECT PERTAINING TO MAIN REGULATOR VALVE MODIFICATION FOR IMPROVED COOLER FLOW AT IDLE AND TORQUE CONVERTER FRICTION PLATE CHANGES, MODEL 1000,2000,2400 AND 2000MH SERIES.*JB
17TR96A
Jun 1, 2002
980000 UNKNOWN OR OTHER
INFORMATION ON OIL ANALYSIS TEST RECOMMENDATIONS, ALL ALLISON COMMERCIAL TRANSMISSIONS AND TORQUE CONVERTERS.*JB
181K2K02
Jun 1, 2002
103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
INFORMATION ON INCORRECT RANGE SELECTION SUMMARY, MODEL 1000 SERIES.*JB
18TR98A
Jun 1, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
VEHICLES MAY EXPERIENCE WATER AND/OR ETHYLENE GLYCOL IN TRANSMISSION OIL, ALL ALLISON TRANSMISSION MODELS.*JB
191K2K02
Jun 1, 2002
100000 POWER TRAIN
THIS BULLETIN INVOLVES INCREASED CAPACITY T6 BEARING AND P3 SUN GEAR CARRIER CHANGES, ALL ALLISON 1000,2000 AND 2400 SERIES.*JB
21TR02
Jun 1, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
INFORMATION REGARDING SHIFT QUALITY CONCERNS WITH MECHANICAL MODULATORS OR REDUCED MODULATION MODIFCATION, MODEL 500 SERIES.*JB
02101
May 27, 2002
061000 ENGINE AND ENGINE COOLING:ENGINE
ENGINE WON'T START, KEY FOB INOPERATIVE AFTER BODY CONTROL MODULE (BCM) REPLACEMENT. *TT
12WT02
May 1, 2002
106220 POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL
VEHICLES MAY EXPERIENCE OUTPUT SEAL LEAKAGE, ALL WT SERIES.*JB
13WT02
May 1, 2002
980000 UNKNOWN OR OTHER
INFORMATION ON A NEW REDUCED SIZE PUSHBUTTON SELECTOR FOR ALL WT WITH WTECIII PUSHBUTTON SELECTORS.*JB
14WT02
May 1, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
SUBJECT PERTAINING TO RETARDER EXHAUST BACKFILL VALVE STOP RETAINING PIN BATTERING.*JB
15WT02
May 1, 2002
116200 ELECTRICAL SYSTEM:IGNITION:MODULE
SUBJECT REGARDING NEW ELECTRONIC CONTROL UNITS, V9B CONTROLS SOFTWARE, AND NEW TRANSMISSION CALIBRATIONS FOR THE WORLD TRANSMISSION MODELS, ALL WORLD TRANSMISSION MODELS.*JB
8TR02
May 1, 2002
100000 POWER TRAIN
INFORMATION REGARDING AUTOMATIC TRANSMISSION, MANUAL TRANSMISSION INSTRUMENT OF WARRANTY, AT 542RM, AT542NRM, AT545RM, AT545NRM, MT643RM, AND MT653RM.*JB
041702
Apr 17, 2002
357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
INFORMATION ON LACK OF COOL AIR WITH THE AIR CONDITIONING SYSTEM. *TT
0208111002
Apr 1, 2002
980000 UNKNOWN OR OTHER
ON CERTAIN 1997 - 2002 GMC F-MODEL (T-SERIES) MEDIUM DUTY TILT CABS AND 1997 - 2002 GMC W-SERIES MEDIUM DUTY TILT CAB MODELS, THE RED REFLECTIVE LETTER DETACHES FROM NAMEPLATE. *TT
11TR02
Apr 1, 2002
116200 ELECTRICAL SYSTEM:IGNITION:MODULE
SUBJECT REGARDING ELECTRONIC ENGINE CONTROLS SYSTEMS, ALL ON-HIGHWAY MODELS INSTALLED BEHIND ELECTRONIC ENGINES.*JB
11TR84B
Apr 1, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
SUBJECT PERTAINING TO TURBINE SHAFT, FORWARD CLUTCH AND HIGH CLUTCH ASSEMBLY, HT/CLBT/V 700 SERIES.*JB
61K2K02
Mar 1, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
SUBJECT ON PUMP BUSHINGS, ALLISION TRANSMISSIONS ALL 1000,2000,AND 2400 SERIES.*JB
7TR02
Mar 1, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
SUBJECT PERTAINING TO THRUST WASHERS, ALLISON TRANSMISSION ALL 5000/6000 SERIES.*JB
91K2K02
Mar 1, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
INFORMATION ON GROUND SLEEVE BUSHING MATERIAL CHANGE, ALLISON TRANSMISSION MODELS 1000,2000.2400 SERIES.*JB
210202
Feb 21, 2002
061100 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
CONCERNS OF INTERMITTENT NO CRANK, NO START CONDITION DUE TO POOR BATTERY CABLE CONNECTIONS. *TT