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Service bulletins for the 2004 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.

1089 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
305592004-10-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. ALLISON LCT1000 DIAGNOSTIC TROUBLE CODE P1711, P0872 AFTER COMPLETING REPAIRS. *TT
30632004-10-15. Service bulletin. OTHER:SCHOOL BUS STOP ARM ASSEMBLY. PERFORMANCE PACKAGE RPO PCX. *TT
30622004-10-15. Service bulletin. UNKNOWN OR OTHER. ADDITIONAL PART NUMBERS FOR BULLETIN 02-01-38-007B. *TT
30552004-10-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON LIGHT WITH A P0300 MISFIRE DUE TO MISFIRES MAINLY ON CYLINDER 7. *TT
30542004-10-14. Service bulletin. POWER TRAIN. REPLACEMENT FLEXPLATE MAY HAVE LARGER BOLT HOLES THAN THE ORIGINAL FLEXPLATE. *TT
30572004-10-14. Service bulletin. STEERING. INTERMITTENT CONCERN OF THE SERVICE 4 WHEEL STEER MESSAGE BEING DISPLAYED ON THE DIC. *TT
30382004-10-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE TICK, RATTLE OR KNOCK NOISE AFTER CYLINDER HEAD GASKET REPLACEMENT ON THE 6.0L ENGINE. *TT
3050A2004-10-13. Service bulletin. EQUIPMENT. 02-05 ONSTAR EQUIPPED VEHICLES EMITTING BEEPING NOISE BEFORE CONNECTING TO ONSTAR. *TT
30722004-10-13. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. THE ENGINE COOLANT TEMPERATURE OR INTAKE AIR TEMPERATURE SENSOR MAY READ -40 DEGREES WHEN MONITORED WITH TECH 2. *TT
30782004-10-13. Service bulletin. SUSPENSION:FRONT:WHEEL BEARING. GREASE LEAK FROM FRONT HUB BEARING. *TT UPDATE. *TT
3022A2004-10-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 04 FULL SIZE TRUCKS AND UTILITIES WITH VIN G, N, T, V AND U ENGINES MAY HAVE A HIGH ALTITUDE, HIGH AMBIENT TEMPERATURE STALL. *TT
30682004-10-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. OIL SEEPAGE FROM TURBO AIR CHARGE COOLER HOSES OR HOSE BLOWING OFF DURING ACCELERATION. POSSIBLE DIAGNOSTIC TROUBLE CODE P0299. *TT UPDATED 04-24-07. *KB
30762004-10-08. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. REPEAT HVAC BLOWER MOTOR FAILURE. *TT
3075B2004-10-08. Service bulletin. ELECTRICAL SYSTEM. BLOWN MBEC 1 OR LBEC 1 FUSE. *TT
30732004-10-08. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. DOWNHILL CRUISE CONTROL SURGE. *TT
30892004-10-04. Service bulletin. ELECTRICAL SYSTEM. SERVICE ENGINE SOON LIGHT AND REDUCED ENGINE POWER WITH A DIAGNOSTIC TROUBLE CODE P1516. DIAGNOSTIC TROUBLE CODES P0120, P0220, P1514, P1515, P1518 AND P2135 MAY ALSO BE PRESENT. *TT
30892004-10-04. Service bulletin. STRUCTURE:BODY. RATTLE TYPE NOISE COMING FROM THE REAR OF THE CAB DURING BODY TWIST MANEUVERS OR OVER BUMPS. *TT
30872004-10-04. Service bulletin. FUEL SYSTEM, OTHER. UPDATED PART NUMBER FOR BULLETIN 04-08-49-019 STALL, INACCURATE/INCORRECT FUEL GAUGE READING. *TT
30872004-10-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CRANK NO START WITH NO CRANKING RPM SPARK OR INJECTOR PULSE. *TT
30862004-10-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. WHISTLE NOISE FROM THE THROTTLE BODY AREA ON LIGHT THROTTLE ACCELERATION ON VEHICLES WITH GEN III ENGINES AND ELECTRONIC THROTTLE. *TT
30842004-10-04. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. STARTER GRINDING NOISE DURING CRANKING ON VEHICLES EQUIPPED WITH THE ALLISON AUTOMATIC TRANSMISSION. *TT
30862004-10-04. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. AIR CONDITIONER (A/C) LOW PRESSURE SWITCH DIAGNOSTIC TOOL. CURRENTLY THE A/C LOW PRESSURE SWITCH OPEN/CLOSE PRESSURES CANNOT BE ACCURATELY DETERMINED BY MEASURING PRESSURE AT THE LOW SIDE SERVICE PORT. *TT
30832004-10-04. Service bulletin. POWER TRAIN. M74 ALLISON LCT1000 PTO GEAR APPLICATIONS. *TT
30482004-09-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. TIMING CHAIN TENSIONER BREAKPOINTS FOR SERVICE KIT OR PRODUCTION KIT. SUPPLEMENT TO 03-06-01-024B. *TT
30512004-09-28. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. CRUISE CONTROL AND/OR THE POWER TAKE OFF UNIT (PTO) MAY BE INOPERATIVE. *TT

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