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Service bulletins for the 2002 Chevrolet Trailblazer

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.

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

By type

By component

By trouble code

Bulletins, newest first
0304170022003-04-15. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. WHINE NOISE FROM REAR AXLE. *TT
020421008A2003-04-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SHUDDER, ROCKING MOTION, BINDING, FEELS LIKE VEHICLE IS TUCK IN 4WD WHEN TURNING AT LOW SPEEDS. *TT
0308440022003-04-05. Service bulletin. EQUIPMENT:ELECTRICAL. RADIO AND / OR HVAC SYSTEMS CHANGE WHILE DRIVING. *TT
0306040112003-04-05. Service bulletin. EQUIPMENT:ELECTRICAL. PROGRAMMING / RE-PROGRAMMING, SETUP, CONFIGURATION OF MODULES. *TT
0208640242003-03-28. Service bulletin. STRUCTURE:BODY. DISCOLORATION / FADING OF DOOR GLASS MOLDING. *TT
020844016A2003-03-28. Service bulletin. STRUCTURE:BODY. WHINE, BUZZ, GENERATOR WHINE, WHINE TYPE NOISE HEARD ON ACCELERATION. *TT
0201380062003-03-28. Service bulletin. EQUIPMENT:ELECTRICAL. REVISED COMPRESSOR OIL BALANCING PROCEDURE. *TT
0204190012003-03-27. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. REVISED DIFFERENTIAL CARRIER ASSEMBLY REPLACEMENT. *TT
0208430062003-03-27. Service bulletin. VISIBILITY:REAR WINDOW WIPER/WASHER. REVISED WIPER INOPERATIVE - REAR DIAGNOSTIC. *TT
0208620042003-02-28. Service bulletin. STRUCTURE:BODY. FRONT FASCIA WAVY. *TT
020849004A2003-02-27. Service bulletin. ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH. INSTRUMENT PANEL CLUSTER (IPC) GAUGES READ ZERO AT TIMES, GAUGES INOPERATIVE AT TIMES. *TT
0201390062003-02-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. DIAGNOSING POOR AIR CONDITIONER PERFORMANCE - AIR CONDITIONER STOPS BLOWING COLD, AIR CONDITIONER CYCLES ON AND OFF. *TT
0205350062003-02-14. Service bulletin. STEERING:COLUMN. SQUEAK NOISE IN STEERING COLUMN. *TT
0204210082003-02-14. Service bulletin. POWER TRAIN. SHUDDER, ROCKING MOTION, BINDING, FEELS LIKE VEHICLE IS STUCK IN 4WD (CROW HOP) WHEN TURNING AT LOW SPEEDS. *TT
020421006A2003-02-14. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). INOPERATIVE 4WD/AWD LAMPS, INOPERATIVE 4WD/AWD SYSTEM. *TT
0206010332003-02-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL LEAK AT OIL PRESSURE SWITCH. *TT
0206010322003-02-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. EXHAUST NOISE / LEAK. *TT
0208490092003-02-14. Service bulletin. STRUCTURE. INTERFERENCE WITH CENTER CONSOLE REAR AUXILIARY POWER OUTLET COVER AND REAR SEAT CUSHION. *TT
0208640212003-02-14. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. OUTSIDE REARVIEW MIRRORS DO NOT RETURN TO THEIR ORIGINAL POSITION AFTER USING CURB VIEW ASSIST FEATURE. *TT
0209400032003-02-12. Service bulletin. SEAT BELTS. PASSENGER SEAT SHOULDER BELT TOO TIGHT OR CINCHES UP. *TT
020309002A2003-02-10. Service bulletin. SUSPENSION. INTERMITTENT BOOM, RUMBLING NOISE AND / OR DISTURBANCE HEARD IN PASSENGER COMPARTMENT WHILE DRIVING AT HIGHWAY SPEEDS. *TT
0201390052003-02-10. Service bulletin. EQUIPMENT. HVAC SYSTEM INOPERATIVE FOR A DRIVE CYCLE, POOR HVAC SYSTEM PERFORMANCE IN HIGH AMBIENT TEMPERATURES. *TT
412002-11-25. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. SUBJECT REGARDING RADIO SPEAKER NOISE WITH BRAKE APPLIED. *TT
1907022002-11-22. Service bulletin. UNKNOWN OR OTHER. CUSTOMERS MAY COMMENT THAT THE SERVICE FOUR-WHEEL DRIVE / ALL-WHELL DRIVE INDICATOR ILLUMINATED OR THE FOUR-WHEEL DRIVE / ALL-WHEEL DRIVE IS INOPERATIVE. *TT
0809022002-11-12. Service bulletin. ELECTRICAL SYSTEM:WIRING. INFORMATION ON DIAGNOSING ELECTRICAL WIRING CONNECTOR PROBLEMS ON 2000 THROUGH 2001 U-VANS AS WELL AS OTHER MODELS. *TT

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