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2004 Chevrolet Trailblazer EXT
50 Technical Service Bulletins (TSBs)
TSB List for the 2004 Chevrolet Trailblazer EXT
Technical Service Bulletins (TSBs) for the 2004 Trailblazer EXT are official communications between Chevrolet & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.
STEERING
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TSB #040232001
RELEASE OF STEERING GEAR STUB SHAFT BEARING KIT FOR SERVICE. *TT UPDATED 08-15-07. *KB UPDATED 10/09/07. *NJ Read More »
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
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TSB #1750177
ABS BRAKE SVC AND 4WD LIGHT ON HVAC BLOWER INOPERATIVE. *AK Read More »
SERVICE BRAKES, AIR
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TSB #020526001B
REAR PARKING BRAKE SHOE RETAINING SPRING CLIP SERVICE KIT FOR DRUM-IN-HAT (DIH) EQUIPPED VEHICLES. *TT UPDATE. *TT Read More »
SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT
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TSB #040525002
ABS LIGHT ON, DTC'S C0265, C0201, U1041 SET AND/OR LOSS OF COMMUNICATION WITH BRAKE MODULE. (REGROUND EBCM GROUND). *KB Read More »
PARKING BRAKE
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TSB #020526001B
REAR PARKING BRAKE SHOE RETAINING SPRING CLIP SERVICE KIT FOR DRUM-IN-HAT (DIH) EQUIPPED VEHICLES. *TT UPDATE. *TT Read More »
ENGINE (PWS)
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TSB #PI1394A
THIS INFORMATIONAL BULLETIN PROVIDES ADDITIONAL INFORMATION ON HOW TO INSTALL PISTONS AND SUGGEST WHAT TOOLS TO USE. Read More »
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TSB #000601012F
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION TO GM DEALERS ON THE CORRECT CLEANING METHODS WHEN CLEANING ENGINE GASKET SEALING SURFACES. Read More »
ENGINE AND ENGINE COOLING:ENGINE
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TSB #040604090
SERVICE ENGINE SOON (SES) LIGHT ON, DIAGNOSTIC TROUBLE CODE (DTC) P0483. *TT Read More »
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TSB #040604076
INFORMATION ON UNSTABLE/ROUGH/LUMPY ENGINE IDLE, AND LOW SPEED VEHICLE SURGE, RANDOM DISTURBANCE OR VEHICLE SHUDDER. *TT Read More »
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TSB #030604033
REVISED DIAGNOSTIC TROUBLE CODE P0336. *TT UPDATE. TO INCLUDE 2004 ISUZU NQR COMMERCIAL MODELS. *TT Read More »
ENGINE AND ENGINE COOLING:ENGINE:DIESEL
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TSB #030604017I
THIS INFORMATIONAL BULLETIN EXPLAINS THE USE OF DIESEL FUEL ADDITIVES IN AN ENGINE, ARE NOT REQUIRED UNLESS THE CUSTOMER DESIRES ADDITIVES TO PREVENT FUEL CONCERNS DEPENDING ON FUEL OR TEMPERATURE RELATED CONDITIONS. Read More »
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
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TSB #14423
14423 - SPECIAL COVERAGE. SOME VEHICLES CONTAIN A FUEL TANK INLET CHECK VALVE (ICV) THAT COULD FRACTURE. THE ICV IS LOCATED ABOVE THE FULL FUEL LEVEL. Read More »
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TSB #07076
BUICK\CHEVROLET\GMC\OLDSMOBILE SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT - FUEL TANK MODULAR RESERVOIR ASSEMBLY CORROSION. CSC LETTER WAS RECEIVED. UPDATED 11/6/08. Read More »
FUEL SYSTEM, OTHER
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TSB #GCUS-9-1522
14423C - SPECIAL COVERAGE (REVISED SERVICE PROCEDURE). A FUEL TANK INLET CHECK VALVE (ICV) COULD FRACTURE. THE ICV IS LOCATED ABOVE THE FULL FUEL LEVEL. Read More »
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TSB #GCUS-9-1493
14423B - SPECIAL COVERAGE (REVISED PART INFORMATION AND SERVICE PROCEDURE). A FUEL TANK INLET CHECK VALVE (ICV) COULD FRACTURE. THE ICV IS LOCATED ABOVE THE FULL FUEL LEVEL. Read More »
FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY
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TSB #14423A
14423A - SPECIAL COVERAGE (REVISED PART INFORMATION). SOME 2004 MODEL YEAR BUICK RAINIER, 2003-2004 MODEL YEAR CHEVROLET SSR, 2002-2004 MODEL YEAR CHEVROLET TRAILBLAZER, CHEVROLET TRAILBLAZER EXT, GMC ENVOY, GMC ENVOY XL, AND OLDSMOBILE ... Read More »
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TSB #14423A
14423A - SPECIAL COVERAGE (REVISED PART INFORMATION). SOME 2004 MODEL YEAR BUICK RAINIER, 2003-2004 MODEL YEAR CHEVROLET SSR, 2002-2004 MODEL YEAR CHEVROLET TRAILBLAZER, CHEVROLET TRAILBLAZER EXT, GMC ENVOY, GMC ENVOY XL, AND OLDSMOBILE ... Read More »
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TSB #14423
14423 - SPECIAL COVERAGE. SOME VEHICLES CONTAIN A FUEL TANK INLET CHECK VALVE (ICV) THAT COULD FRACTURE. THE ICV IS LOCATED ABOVE THE FULL FUEL LEVEL. Read More »
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TSB #07076
BUICK\CHEVROLET\GMC\OLDSMOBILE SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT - FUEL TANK MODULAR RESERVOIR ASSEMBLY CORROSION. CSC LETTER WAS RECEIVED. UPDATED 11/6/08. Read More »
POWER TRAIN:AXLE ASSEMBLY
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TSB #040419001
DIAGNOSTIC TROUBLE CODE (DTC) C0379 SET, SERVICE 4WD LIGHT ON, 4WD INOPERATIVE. *TT Read More »
ELECTRICAL SYSTEM
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TSB #PIP5094A
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT ,WHEN TESTING ANY CIRCUIT FOR OPEN OR RESISTANCE, IT IS IMPERATIVE THAT ALL RELATED TERMINAL PIN FIT AND TENSION BE CHECKED WHEN THE TEST STEPS REQUIRE DISCONNECTION ... Read More »
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TSB #PIT5485B
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN IF UNABLE TO PLACE AN ONSTAR CALL IN THE IGNITION ON MODE AFTER THE ONSTAR CANADA UPGRADE, TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE. Read More »
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TSB #PIC-5050-A
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON REPAIRING THE CONCERN. A CUSTOMER MAY IDENTIFY A CONCERN OF UNABLE TO REACTIVATE A VEHICLE'S ONSTAR THAT HAS BEEN PREVIOUSLY DISABLED BY ONSTAR. Read More »
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TSB #PIC-4935-E
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. Read More »
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TSB #PIC4935E
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. Read More »
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TSB #PIT5485A
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN, IF UNABLE TO PLACE AN ONSTAR CALL IN THE IGNITION ON MODE AFTER THE ONSTAR CANADA UPGRADE TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE. Read More »
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TSB #08089-B
GENERAL MOTORS CORP: SPECIAL COVERAGE ADJUSTMENT; ANALOG ONSTAR DEACTIVATION. *PE UPDATED 2/17/09. *PE Read More »
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TSB #040845010
VARIOUS INTERIOR ELECTRICAL CONCERNS, IP GAUGES/LIGHTING INOPERATIVE, HVAC CONTROLS INOPERATIVE, BLOWER MOTOR INOPERATIVE, RADIO INOPERATIVE, FLASHER INOPERATIVE. *TT Read More »
ELECTRICAL SYSTEM:12V/24V/48V BATTERY
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TSB #PIC-4935-E
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. Read More »
ELECTRICAL SYSTEM:SOFTWARE
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TSB #08089-B
GENERAL MOTORS CORP: SPECIAL COVERAGE ADJUSTMENT; ANALOG ONSTAR DEACTIVATION. *PE UPDATED 2/17/09. *PE Read More »
EXTERIOR LIGHTING:HEADLIGHTS
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TSB #3170E
IPC, INTERIOR LIGHTS AND/OR HEADLAMPS FLICKER. *AK FB2 Read More »
EXTERIOR LIGHTING:TAIL LIGHTS
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TSB #04017A
TAIL LAMP/STOP LAMP(S) MAY BECOME INOPERATIVE. GM ADMINISTRATIVE MESSAGE. *NM Read More »
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TSB #3335
SUPPLEMENT TO CAMPAIGN 04087 / SCREWS BREAK IN THE TAIL LAMP HOUSING. *SC Read More »
VISIBILITY:WINDSHIELD WIPER/WASHER
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TSB #3110A
WASHER MOTOR FOR THE FRONT WIPERS CONTINUOUSLY RUNS WHILE THE KEY ON. *SC UPDATE. *TT Read More »
VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR
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TSB #3110A
WASHER MOTOR FOR THE FRONT WIPERS CONTINUOUSLY RUNS WHILE THE KEY ON. *SC UPDATE. *TT Read More »
STRUCTURE:FRAME AND MEMBERS
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TSB #PIT-3749D
GM: ON SOME TRUCK MODELS THERE IS SOME FRAME CORROSION. *RM UPDATED ON 5/2/2012. *KB Read More »
STRUCTURE:BODY
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TSB #040844014A
BUZZ TYPE NOISE COMING FROM REAR SPEAKERS. *TT UPDATE. *TT Read More »
STRUCTURE:BODY:HATCHBACK/LIFTGATE
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TSB #060866011
REAR LIFTGATE BINDS, IMPROPER FIT. MAY BE CAUSED BY BROKEN WELDS OR CRACKS FORMED AROUND THE TWO INNER WELDS. *KB Read More »
INTERIOR LIGHTING
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TSB #3170E
IPC, INTERIOR LIGHTS AND/OR HEADLAMPS FLICKER. *AK FB2 Read More »
EQUIPMENT
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TSB #14423
14423 - SPECIAL COVERAGE. SOME VEHICLES CONTAIN A FUEL TANK INLET CHECK VALVE (ICV) THAT COULD FRACTURE. THE ICV IS LOCATED ABOVE THE FULL FUEL LEVEL. Read More »
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TSB #PIT3271G
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT CHANGING THE TIRE AND WHEEL SIZE ON VEHICLES. Read More »
EQUIPMENT:ELECTRICAL
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TSB #PIC5050A
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON REPAIRING THE CONCERN. A CUSTOMER MAY IDENTIFY A CONCERN OF UNABLE TO REACTIVATE A VEHICLE'S ONSTAR THAT HAS BEEN PREVIOUSLY DISABLED BY ONSTAR. Read More »
EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
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TSB #16NA260
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE MEDIA DISC PLAYER WITH THE LATEST CALIBRATIONS TO CORRECT A CONDITION OF THE REAR ENTERTAINMENT SYSTEM NOT OPERATING AS INTENDED IN COLDER AMBIENT TEMPERATURE AREAS DUE TO ... Read More »
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TSB #PIC5088F
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN. THE VEHICLE'S XM RADIO ONLY HAS XM PREVEIW CHANNELS. Read More »
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TSB #3106
XM RADIO WAS WORKING PRIOR TO JULY 26, 2004 AND IT IS INOPERATIVE NOW. *JB Read More »
EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)
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TSB #PIT5485B
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN IF UNABLE TO PLACE AN ONSTAR CALL IN THE IGNITION ON MODE AFTER THE ONSTAR CANADA UPGRADE, TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE. Read More »
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TSB #PIT5389A
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS FOR DIAGNOSING THE CONCERN. THE VEHICLE MAY BE UNABLE TO CONNECT TO ONSTAR USING THE WHITE, BLUE OR RED ONSTAR BUTTONS. Read More »
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TSB #PIT5485A
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN, IF UNABLE TO PLACE AN ONSTAR CALL IN THE IGNITION ON MODE AFTER THE ONSTAR CANADA UPGRADE TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE. Read More »
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TSB #08089-B
GENERAL MOTORS CORP: SPECIAL COVERAGE ADJUSTMENT; ANALOG ONSTAR DEACTIVATION. *PE UPDATED 2/17/09. *PE Read More »
EQUIPMENT:APPLIANCE:AIR CONDITIONER
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TSB #3152
BLOWER SPEED CHANGES ON ITS OWN. *TC UPDATE. *TT Read More »