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Service bulletins for the 2002 Chevrolet Silverado

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

866 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
00557B2003-11-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THE ALLISON LCT1000 TRANSMISSIONS MAY EXPERIENCE A LEAK FROM OIL PUMP AREA. *TT
00938B2003-11-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). ALLISON LCT1000 REPEAT TRANSMISSION CONTROL MODULE (TCM) FAILURES WITH POSSIBLE MULTIPLE DIAGNOSTIC TROUBLE CODES (DTCS). *TT
01129A2003-11-20. Service bulletin. POWER TRAIN. ALLISON LCT1000 SERVICEABILITY. *TT
0804032003-11-05. Service bulletin. POWER TRAIN. THIS VME MESSAGE APPLIES TO THE VALVE BODY FOR THE ALLISON SERIES 1000 TRANSMISSION REVISED FOR THE 2004 MODEL YEAR TO ADD MODULATED MAIN PRESSURE CONTROL. THIS REVISION WILL PROVIDE ADDITIONAL TRANSMISSION OIL COOLER FLOW AND REDUCE PUMP LOAD DURING CERTAIN LOW SPEED OPERATING CONDITIONS. *TT
0521032003-10-28. Service bulletin. POWER TRAIN. ESSENTIAL TOOLS FOR SERVICING THE ALLISON TRANSMISSION. THESE TOOLS INCLUDE A FOUR-WHEEL DRIVE SPANNER NUT WRENCH, REAR BEARING PULLER LEGS, DIGITAL DEPTH MICROMETER AND A REAR BEARING INSTALLER. THESE TOOLS ARE REQUIRED TO REPLACE A CRACKED EXTENSION HOUSING ON AN ALLISON INSTALLED IN A FOUR-WHEEL DRIVE PICK-UP. 2004 SIERRA INCLUDED. TT
0304180032003-09-27. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. REVISED WHEEL DRIVE SHAFT INNER JOINT AND SEAL REPLACEMENT. *TT
0304210042003-08-26. Service bulletin. POWER TRAIN. DESIGN CHANGE OF REAR OUTPUT SHAFT AND OIL PUMP REPLACEMENT PARTS. *TT
020730051A2003-04-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. TRANSMISSION SHIFTING IN AND OUT OF 4TH AND 5TH GEAR (HUNTING) WHEN PULLING/CARRYING A LOAD, UNABLE TO MANUALLY SELECT 4TH GEAR. *TT
0307300052003-04-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SERVICE ENGINE SOON INDICATOR ILLUMINATED, TRANSMISSION SLIPS, ENGINE FLARE, DELAYED 2-3 SHIFT, SHIFTS MISSING, NO SHIFT, DIAGNOSTIC TROUBLE CODES P0730, P0756, P0757. *TT
020421005A2003-04-15. Service bulletin. POWER TRAIN. SLIPS IN 4-WHEEL DRIVE, NOISE, VIBRATION, LEAKS, HOT ODOR. *TT
0207300512003-03-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. TRANSMISSION SHIFTING IN AND OUT OF 4TH AND 5TH GEAR (HUNTING) WHEN PULLING / CARRYING A LOAD, UNABLE TO MANUALLY SELECT 4TH GEAR. HD2500/HD3500 SERIES. *TT
020730032A2003-02-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. ALLISON TRANSMISSION CONTROL MODULE FASTLEARN PROCEDURE UPDATE REQUIRED AFTER TRANSMISSION REPAIRS. *TT
412002-11-25. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. SOME VEHICLES EQUIPPED WITH THE ALLISON LCT1000 TRANSMISSION MAY EXPERIENCE A VERY HARSH 2-1 DOWNSHIFT AT A STOP OR ON THROTTLE REAPPLY. *TT
020730024A2002-10-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT
020730011A2002-10-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DIAGNOSTIC INFORMATION FOR POSSIBLE GEAR INDICATOR (PRNDL) CONCERNS FOR VEHICLES WITH ALLISON LCT1000 AUTOMATIC TRANSMISSION. *TT
0207300202002-10-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SOME CUSTOMERS MAY COMMENT OF HARSH OR DELAYED 2-1 DOWNSHIFT, NEUTRAL FEEL AT A STOP, SHIFT BUSYNESS, DIAGNOSTIC TROUBLE CODES P0708, P0847, P0872, P0875, P1711, P1713 FROM 3/4 AND 1 TON PICKUP MODELS. *TT
0207300302002-10-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SOME CUSTOMERS MAY COMMENT THAT THE TRANSMISSION SLIPS, A SHUDDER, CHUGGLE, OR VIBRATION IS FELT WHEN THE TRANSMISSION SHIFTS FROM FIRST TO SECOND GEAR. *TT
0204210052002-10-10. Service bulletin. POWER TRAIN. SOME VEHICLES WILL NOT MOVE WHEN 4-WHEEL DRIVE IS REQUESTED, NOISE, SHUDDER, POOR PERFORMANCE, TRANSMISSION / TRANSFER CASE SLIPS, TRANSMISSION WILL NOT UPSHIFT, SLIPS IN 4-WHEEL DRIVE. *TT
0204210042002-10-10. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). SOME CUSTOMERS MAY COMMENT ON THE SERVICE 4WD INDICATOR ILLUMINATING WITH DIAGNOSTIC TROUBLE CODE B2725 SET. *TT
020417001A2002-10-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. CONCERNS WITH LAUNCH SHUDDER / VIBRATION ON ACCELERATION. *TT
0200900022002-09-28. Service bulletin. POWER TRAIN. SUBJECT REGARDING LUBRICATION OF PROPELLER SHAFT DOUBLE CARDAN CV TYPE U-JOINT CENTERING BALL AND SEAT.*NLM
000730017B2002-06-20. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUBJECT REGARDING SERVICE PARTS RESRICTION PROGRAM FOR ALLISON SERIES 1000 AUTOMATIC TRANSMISSION. *SLC
0207300042002-06-20. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. NEW PRODUCT INFORMATION, GRADE BRAKE FEATURE OF ALLISON 1000 SERIES TRANSMISSION. *SLC THIS BULLETIN REPLACES 02-07-30-004. *TT
0207300112002-06-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUBJECT REGARDING, 2001-2002 CHEVROLET AND GMC C/K PICKUP AND UTILITY MODELS, DIAGNOSTICS FOR POSSIBLE GEAR INDICATOR CONCERNS. *JG
0207300112002-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUBJECT REGARDING, 2001-2002 CHEVROLET AND GMC C/K PICKUP AND UTILITY MODELS, DIAGNOSTICS FOR POSSIBLE GEAR INDICATOR CONCERNS. *SLC

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.