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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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Bulletins, newest first
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
0715032003-10-31. Service bulletin. STRUCTURE:BODY. REVISED REQUIREMENTS FOR INSTALLING THE RUNNING BOARD. *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
0308440112003-10-02. Service bulletin. STRUCTURE:BODY. TWEETER SPEAKER RATTLE IN FRONT SIDE DOOR(S), TWEETER SPEAKER FALLS OUT OF POSITION. *TT
020605003C2003-10-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. EXHAUST MOAN/VIBRATION. *TT UPDATE. *TT
030602005A2003-09-29. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE COOLANT LOSS WITH NO VISIBLE LEAKS. *TT UPDATED *EH
0304180032003-09-27. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. REVISED WHEEL DRIVE SHAFT INNER JOINT AND SEAL REPLACEMENT. *TT
0303080022003-09-27. Service bulletin. SUSPENSION. RATTLE/SQUEAK FROM FRONT OF VEHICLE. *TT *AR
020601010A2003-09-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. SERPENTINE BELT IDENTIFICATION AND DIAGNOSIS FOR MEDIUM DUTY TRUCKS. VARIOUS MODELS INCLUDING THE CHEVROLET AND GMC C5500 MD 2003. *TT
000842010A2003-09-26. Service bulletin. EXTERIOR LIGHTING. DAYTIME RUNNING LAMP (DRL) BULB REPLACEMENT. *TT
0304210042003-08-26. Service bulletin. POWER TRAIN. DESIGN CHANGE OF REAR OUTPUT SHAFT AND OIL PUMP REPLACEMENT PARTS. *TT
0306040302003-08-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MULTIPLE DRIVEABILITY SYMPTOMS OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE DUE TO CLOGGED FUEL INJECTORS. *TT
000523005B2003-08-14. Service bulletin. SERVICE BRAKES, HYDRAULIC. RIGHT REAR INNER BRAKE PAD WEAR. VARIOUS MODLES INCLUDING THE 2004 SILVERADO AND SIERRA. *TT
0307032003-07-24. Service bulletin. ELECTRICAL SYSTEM. MULTIPLE DIAGNOSTIC TROUBLE CODES, INCLUDING ANY OR ALL OF P0708, P0847, P0872, P0875, P1711 OR P1713, PARTIAL OR NO PRINDEL DISPLAY OR NO MOVEMENT. *TT *JB
0306010112003-04-28. Service bulletin. ENGINE AND ENGINE COOLING. ACCESSORY DRIVE BELT WHINE. *TT
020604054B2003-04-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INCREASED ACCELERATOR PEDAL EFFORT, IDLE INSTABILITY. *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
0303100012003-04-09. Service bulletin. TIRES:BEAD; SUSPENSION. TIRE SLOWLY GOES FLAT AND/OR EXCESSIVE WHEEL VIBRATION CAUSED BY BEAD SPLITS (REPLACE WHEELS WITH NEW HEAVY DUTY RIM VERSION) *TT *AR UPDATED 4/11/08. *NJ
000235003B2003-04-05. Service bulletin. STEERING. CLUNKING NOISE UNDER HOOD AND CAN BE FELT IN THE STEERING WHEEL. *TT
0306040102003-04-05. Service bulletin. FUEL SYSTEM, DIESEL. 6.6L LB7 DURAMAX DIESEL FUEL PRESSURE REGULATOR REPLACEMENT. 2500/3500 AND C4500/C5500 SERIES MODELS. *TT
020604054A2003-04-04. Service bulletin. VEHICLE SPEED CONTROL:ACCELERATOR PEDAL; UNKNOWN OR OTHER. INCREASED ACCELERATOR PEDAL EFFORT. *TT
0206010382003-03-29. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE KNOCK OR LIFTER NOISE. *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

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