2003 Chevrolet Trailblazer Technical Service Bulletins

473 technical service bulletins (TSBs) are on record for the 2003 Chevrolet Trailblazer. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10019212Feb 21, 2006Equipment. Supplement to bulletin 05-01-37-002a, poor heat performance.
• 10019211Feb 21, 2006Engine cooling. Supplement to bulletin 05-01-37-002a, poor rear heat performance .
• 10019186Feb 16, 2006Interior lighting, Exterior lighting. Ipc, interior lights and/or headlamps flicker. *ak fb2
• 10019182Feb 16, 2006Engine cooling. Ses light after internal engine repairs due dtc p0016 or p1345.
• 10019510Feb 1, 2006Engine cooling. Operating characteristics of the electro-viscous (ev) fan clutch and diagnostic tips for cooling fan noise, delayed transmission shifts and/or engine revving too high.
• 10019506Feb 1, 2006Body and structure. Revised liftgate lock cylinder replacement.
• 10018908Jan 25, 2006Electrical system. Ipc gauges and ac inoperative, several indicators illuminate dtcs u1016 u1000.
• 10018577Jan 6, 2006Engine cooling. P0300 due to random misfires not felt - possible accessory pulley.
• 10018566Jan 6, 2006Visibility (wipers, defrost, mirrors). Front blower inoperative stay running during low ambient temperature.
• 10017393Nov 5, 2005Transmission and drivetrain. Vibration felt and heard at low rpm during parking lot maneuvers.
• 10017299Nov 2, 2005Transmission and drivetrain. Electronic transfer case unable to complete shift.
• 10018733Nov 1, 2005Engine cooling. Engine oil leak at rear cover assembly area.
• 10018721Nov 1, 2005Transmission and drivetrain. 4l60-e automatic transmission torque converter clutch (tcc) shudder, water in transmission (repair transmission and replace transmission filler tube, level indicator and seal).
• 10017249Oct 29, 2005Visibility (wipers, defrost, mirrors). Wiper/washer will not shut off or other possible issues.
• 10017190Oct 27, 2005Transmission and drivetrain. 4l60e, 4l65e replacement valve body gaskets does not seem to fit.
• 10017179Oct 27, 2005Exterior lighting. Supplement to campaign 04087 / screws break in the tail lamp housing.
• 10017158Oct 27, 2005Electrical system. No crank no start no diagnostic trouble codes.
• 10017130Oct 25, 2005Engine cooling. Engine is hard to start after filling the fuel tank.
• 10017010Oct 20, 2005Transmission and drivetrain. Ping, pop or click noise from under the rear.
• 10016544Sep 21, 2005Exterior lighting. Automatic headlamp defeat inoperative after bcm replacement.
• 10017818Sep 1, 2005Engine cooling. Information on use of bolt extractor tool kit part number en-47702 for removing broken cylinder head or main bearing cap bolts on inline truck engines.
• 10017381Aug 1, 2005Electrical system. Ignition key will not remove from ignition lock cylinder.
• 10017371Aug 1, 2005Steering. Hiss/rush noise from steering (strg) column area.
• 10014870May 11, 2005Engine cooling. 1999 - 2005 gen ii cold engine misfire at idle with possible p0171 and/or p0174.
• 10014853May 11, 2005Transmission and drivetrain. Intermittent malfunction indicator lamp (mil) with diagnostic trouble code (dtc) c0374 or erratic 4wd/awd operation.
• 10017409May 1, 2005Engine cooling. Oil leak under extreme cold temperatures (-34 degrees c) (-30 degrees f) or colder).
• 10017359May 1, 2005Brakes. Revised front brake caliper bracket mounting bolt fastener tightening specification.
• 10013572Apr 21, 2005Transmission and drivetrain. 4wd models with noise, vibration on dry pavement.
• 10013523Apr 21, 2005Air bags. Sir light on steady after bulb test and no diagnostic trouble codes (dtcs).
• 10013503Apr 20, 2005Seats. Heated seat operation clarification.
• 10013495Apr 20, 2005Exterior lighting. Headlamps flicker or dim while driving.
• 10013378Apr 18, 2005Electrical system. Application of horn at horn pad inoperative. Rke function for panic alarm works.
• 10017326Apr 1, 2005Body and structure. Cargo cover handle broken.
• 10015012Mar 1, 2005Exterior lighting. Diagnostic information on headlamps flicker or momentarily dim while driving.
• 10015005Mar 1, 2005Engine cooling. Revised inspection/maintenance (I/m) evaporative emission (evap) system set procedure.
• 10014993Mar 1, 2005Engine cooling. Diagnostic aids for diagnostic trouble codes p0440, p0455 and/or p0442 - evaporative emission (evap) system leak.
• 10011821Feb 1, 2005Transmission and drivetrain. Reduced power light on and diagnostic trouble code p1680 p1221 and or p1271 stored in the powertrain control module.
• 10011817Feb 1, 2005Engine cooling. Exhaust moan at idle or parking lot maneuvers.
• 10011719Jan 31, 2005Steering. Installation of a power steering hose to a new steering gear.
• 10011692Jan 28, 2005Engine cooling. Misfire at idle cold and possible p0171 and or p0174.
• 10011636Jan 28, 2005Electrical system. 125a mega fuse opens when attempting to jump start.
• 10013440Jan 1, 2005Equipment. Onstar system inoperative onstar system status light is red radio locked in phone mode or dtc b1000.
• 10017442Dec 1, 2004Transmission and drivetrain. 4wd switch indicator lights flashing, 4wd inoperative, diagnostic trouble codes c0327, p0550 set.
• 10017440Dec 1, 2004Steering. Steering system moan, groan, shudder and/or vibration type noise during low speed turning maneuvers.
• 10011954Nov 16, 2004Exterior lighting. Tail lamps/stop lamps product field action announcement. *tt administrative message.
• 10014003Nov 1, 2004Exterior lighting. Tail lamp that may become inoperative prematurely.
• 10011141Oct 1, 2004Body and structure. Rear license plate pocket gasket loose or out of position. *tt udate.
• 10011227Aug 1, 2004Other or unknown. Automatic dual zone hvac battery draw.
• 10011226Aug 1, 2004Visibility (wipers, defrost, mirrors). Rear wiper does not clean rear window.
• 10011217Aug 1, 2004Transmission and drivetrain. Release of rear transmission mount separate from exhaust mount.

← All problems reported for the 2003 Chevrolet Trailblazer