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Service bulletins for the 2003 Chevrolet Avalanche

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
030852001B2003-04-15. Service bulletin. EQUIPMENT:ELECTRICAL. REMOTE KEYLESS ENTRY (RKE) SYSTEM INOPERATIVE. *TT
0308520012003-04-09. Service bulletin. EQUIPMENT:ELECTRICAL. REMOTE KEYLESS ENTRY (RKE) SYSTEM INOPERATIVE. *TT
000235003B2003-04-05. Service bulletin. STEERING. CLUNKING NOISE UNDER HOOD AND CAN BE FELT IN THE STEERING WHEEL. *TT
0308500032003-04-05. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. SEAT HEATER AND/OR MEMORY POWER SEAT INOPERATIVE. *TT
0308050012003-04-04. Service bulletin. SEATS:MID/REAR ASSEMBLY. SECOND ROW SEAT CENTER ARMREST PANEL WARPING. *TT
0208440202003-03-31. Service bulletin. EQUIPMENT:ELECTRICAL. NO AUDIO OUT OF SPEAKERS AT TIMES. *TT
0206010382003-03-29. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE KNOCK OR LIFTER NOISE. *TT
020605005A2003-03-27. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. EXHAUST / MUFFLER HEAT SHIELD RATTLE, POPPING NOISE UNDER VEHICLE. *TT
0205230042003-03-25. Service bulletin. SERVICE BRAKES, HYDRAULIC. SOME VEHICLES MAY EXHIBIT A REDUCED BRAKE POWER MESSAGE ON THE DRIVER'S INFORMATION CENTER (DIC). *TT
0101022003-02-28. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH. FRONT DRIVER AND/OR PASSENGER DOOR LOCK BEZEL IS LOOSE AND FALLING OUT. *TT
0101022003-02-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VEHICLE WILL NOT START CONDITION. *TT
020421006A2003-02-14. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). INOPERATIVE 4WD/AWD LAMPS, INOPERATIVE 4WD/AWD SYSTEM. *TT
0205260022003-02-14. Service bulletin. PARKING BRAKE. SCRAPING NOISE FROM REAR OF VEHICLE. *TT
020522004B2003-02-14. Service bulletin. EXTERIOR LIGHTING:BRAKE LIGHTS; SERVICE BRAKES, HYDRAULIC. TRAILER BRAKES APPLIED WHEN HEADLIGHTS / PARK LAMPS ARE ON, BRAKE CONTROLLER ILLUMINATION. *TT
0208630032003-02-14. Service bulletin. STRUCTURE:BODY:BUMPERS. BUMPER FASCIA COVER RETAINERS PULLING OUT OF FASCIA. *TT
0209400052003-02-14. Service bulletin. SEAT BELTS:REAR/OTHER. AVAILABILITY OF REAR SEAT SHOULDER BELT COMFORT GUIDES. *TT
0209410022003-02-12. Service bulletin. AIR BAGS. AIR BAG LAMP ON, PASSENGER AIR BAG INDICATOR ALWAYS READS OFF, DIAGNOSTIC TROUBLE CODE (DTC) B0092 SET. *TT
0205220042003-02-12. Service bulletin. SERVICE BRAKES, HYDRAULIC. TRAILER BRAKES APPLIED WHEN HEADLIGHTS / PARK LAMPS ARE ON, BRAKE CONTROLLER ILLUMINATION. *TT
020522004A2003-02-10. Service bulletin. SERVICE BRAKES, HYDRAULIC. TRAILER BRAKES APPLIED WHEN HEADLIGHTS / PARK LAMPS ARE ON, BRAKE CONTROLLER ILLUMINATION. *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
010864014A2002-10-09. Service bulletin. STRUCTURE:BODY:DOOR. SOME CUSTOMERS MAY COMMENT THAT THE MANUAL LOCK LEVER COMES LOOSE FROM THE DOOR TRIM PANEL. *TT

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