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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

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
2901022002-04-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. INFORMATION ON PROPER PROGRAMMING FOR THE TRANSFER CASE CONTROL MODULE. *TT
1312012002-04-04. Service bulletin. POWER TRAIN. SUBJECT REGARDING SERVICE ENGINE SOON LIGHT ON, DELAYED TRANSMISSION DOWNSHIFT AND/OR EXCESSIVE FAN NOISE. *TT
0107300382002-03-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SOME CUSTOMERS MAY COMMENT THAT THE SERVICE ENGINE SOON LAMP IS ILLUMINATED, NO 3RD AND 4TH GEAR, THE TRANSMISSION DOES NOT SHIFT CORRECTLY, THE TRANSMISSION FEELS LIKE IT SHIFTS TO NEUTRAL OR A LOSS OF DRIVE OCCURS. *TT
0107300432002-03-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUBJECT REGARDING DIAGNOSTIC TIPS FOR SLIPPING OR MISSING SECOND, THIRD AND/OR FOURTH GEAR. *TT
010642002-03-13. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). SAFETY RECALL REGARDING THE CALIBRATION OF THE ACTIVE TRANSFER CASE CONTROL MODULE OR A RANGE SHIFT COLLAR THAT WAS NOT MACHINED PROPERLY. *TT
010652002-03-13. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). ON SOME VEHICLES, THE CALIBRATION OF THE ACTIVE TRANSFER CASE CONTROL MODULE MAY CAUSE INSUFFICIENT HIGH SPEED ENGAGEMENT. *TT.
1411012002-03-05. Service bulletin. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL. CUSTOMERS MAY INDICATE A CONCERN OF A FRONT AXLE SEAL HIGH-PITCHED NOISE COMING FROM THE FRONT OF THE VEHICLE AFTER DRIVING ABOUT TEN MILES. *TT
3010012002-03-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. INFORMATION ON CLEAN NEUTRAL TEST FOR 4-WHEEL DRIVE VEHICLES INVOVLED IN RECALL BULLETIN 01064 TRANSFER CASE REPLACEMENT. *TT
1810012002-03-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SOME VEHICLES MAY EXHIBIT AN INTERMITTENT 1-2 SHIFT SHUTTER OR POSSIBLE 1-2 HARSH SHIFT CONDITION. *TT
1610012002-03-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SOME ALL-WHEEL DRIVE OR FOUR-WHEEL DRIVE VEHICLES MAY EXHIBIT A BUMP OR SURGE THAT CAN OCCUR WHILE THE TRANSMISSION IS STILL IN FIRST GEAR. *TT
0107300362002-02-26. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. SERVICE ENGINE SOON LAMP ILLUMINATED, INCORRECT TRANSMISSION SHIFTS, POOR PERFORMANCE OF ENGINE, TRANSMISSION SLIPPING. *YH
3008012001-11-20. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. INFORMATION REGARDING DELAYS IN TRANSMISSION DOWNSHIFTING. *YH
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
0104200032001-10-25. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. SUBJECT REGARDING REAR AXLE EXCHANGE PROGRAM. *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
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

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