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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
3008012001-11-20. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. INFORMATION REGARDING FAN NOISE. *YH
3008012001-11-20. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. INFORMATION REGARDING DELAYS IN TRANSMISSION DOWNSHIFTING. *YH
3008012001-11-20. Service bulletin. ELECTRICAL SYSTEM:IGNITION:MODULE. INFORMATION REGARDING UNRESOLVED DTC P0014, FALSE DTC P0116 AND P1683. *YH
0108460052001-10-31. Service bulletin. EQUIPMENT:ELECTRICAL. UNABLE TO CONNECT TO ONSTAR FOLLOWING A DROPPED CELLULAR CALL DURING AN ONSTAR CONFIGURATION ATTEMPT. *TT
0706012001-10-30. Service bulletin. UNKNOWN OR OTHER. INFORMATION REGARDING ROOF MOUNTED LUGGAGE CARRIER BOW POSITIONING. *SLC
1307012001-10-30. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT. CUSTOMERS MAY COMPLAIN OF AN ANTI-LOCK BRAKE SYSTEM (ABS) OR BRAKE INDICATOR LIGHT ILLUMINATING OR A SERVICE BRAKE SYSTEM MESSAGE FROM THE DRIVER INFORMATION CENTER WITH A CODE OF C0238 IN THE ELECTRONIC BRAKE CONTROL MODULE. *TT
0307012001-10-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT; INTERIOR LIGHTING. CUSTOMERS MAY COMPLAIN OF 4-WHEEL DRIVE LIGHT ILLUMINATING.*JB
DCS7602001-10-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE; UNKNOWN OR OTHER. INFORMATION REGARDING LL8 ENGINE LABOR OPERATIONS. *SLC
0106010172001-10-26. Service bulletin. UNKNOWN OR OTHER. INFORMATION REGARDING FLYWHEEL HOLDING TOOL J 44226-3A MODIFICATION OR REPLACEMENT. *YH
0104200032001-10-25. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. SUBJECT REGARDING REAR AXLE EXCHANGE PROGRAM. *TT
2908012001-08-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING CALIBRATIONS AVAILABLE TO CORRECT UNRESOLVED DIAGNOSTIC TROUBLE CODE P0014, DELAYS IN TRANSMISSION DOWNSHIFTING AND COMPLAINTS OF FAN NOISE. *TT
0108460022001-08-30. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). INFORMATION ON PROGRAMMING OF REPLACEMENT ONSTAR VEHICLE COMMUNICATION AND INTERFACE MODULES (VCIM). *TT
105012001-06-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THIS MESSAGE APPLIES TO A POSSIBLE DELAYED ENGAGEMENT OF THE TRANSMISSION THAT MAY OCCUR AFTER THE VEHICLE SITS FOR TWO TO THREE WEEKS. *T
010342001-06-25. Service bulletin. SUSPENSION:FRONT:CONTROL ARM. CAMPAIGN INFORMATION TO REPLACE THE LEFT AND THE RIGHT FRONT LOWER CONTROL ARM BRACKETS. *TT
0107300182001-06-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SUBJECT REGARDING TECH 2 INFORMATION ON 4L60-E SHIFT ADAPTS. *TT
1204012001-05-30. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. SUBJECT REGARDING EXCHANGE PROGRAM, BULLETIN NUMBER 010420003 IMPLEMENTED FOR THE 2002 EIGHT INCH RING GEAR AXLE. *TT
0804012001-05-30. Service bulletin. SEAT BELTS. INFORMATION ON USING THE SEAT AND SHOULD BELT EXTENDERS. *TT
332001-05-19. Service bulletin. STRUCTURE:BODY. INFORMATION ON HEADLINER REPLACEMENT, HEADLINER HARNESS ROUTING, AND REPLACING OR SERVICING THE SUNROOF ON VARIOUS MODELS INCLUDING THE 2002 CHEVROLET TRAILBLAZER. *TT

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