Owner-reported complaints naming the transmission system, filed with NHTSA
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Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules. Every record below is an owner-reported complaint about the 2004 Chevrolet Trailblazer Ext submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 11 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
TRANSMISSION SLIPPING BETWEEN 3RD AND 4TH GEAR. ENGINE REVS IN NEUTRAL, THEN TRANSMISSION WOULD RE-ENGAGE. FAILURE WOULD OCCUR EVERYTIME VEHICLE WAS DRIVEN. REPAIRED BY COMPLETE TRANSMISSION REBUILD. *TR
ABOUT 10 MILES OUTSIDE OF DALLAS MY CHECK ENGINE LIGHT CAME ON BUT NO INITIAL PROBLEMS. LATER THAT NIGHT WHILE DRIVING ON THE INTERSTATE THE CAR WOULD NOT GO FASTER THAN 30MPH. I RETURNED HOME THAT NIGHT AND LEFT IT PARKED. THE NEXT DAY TOOK IT TO AUTOZONE AND THE GUY DID AN ENGINE CHECK STATING THAT MY TRANSMISSION HAS GONE OUT AND THAT IT WAS LOW ON FLUIDS. I ADDED 3 QUARTS OF TRANSMISSION FLUID WHICH SEEMED TO HELP A LITTLE BIT, BUT I DO NOT FEEL COMFORTABLE ENOUGH MAKING AN 8 HR TRIP BACK HOME. *TR
DRIVING NORMALLY ,PUT CAR IN PARK ,PUT CAR BACK IN DRIVE CRUNCHING NOISE ,CAR NO LONGER HAS REVERSE OR 2ND GEAR. *TR
I BOUGHT MY 2004 TRAILBLAZER NEW IN 2004 AND IT HAS BEEN OK. I GOT IN IT LAST THURSDAY AND PUT IT IN REVERSE TO BACK OUT OF MY BASEMENT TO GO TO WORK. IT MADE A HORRIBLE NOISE SO I GOT MY HUSBAND UP TO LOOK AT IT. COME TO FIND OUT REVERSE WENT OUT ON THE TRANSMISSION. THE REPAIR SHOP SAID REVERSE WAS OUT AND SOME GEARS WERE WORN. I HAD NO WARNING AND THIS JUST HAPPENED. THIS REPAIR PERSON TOLD US THIS WAS WEAK LINK ON THE TRAILBLAZERS AND THE TRANSMISSIONS WOULD GO JUST LIKE THAT. IF THIS IS A WEAK LINK, GM SHOULD RECALL AND FIX THE PROBLEM. I DID NOT TAKE OUT THE EXTENDED WARRANTY AND I ONLY HAVE ABOUT 89,000 MILES ON THE VEHICLE. *TR
2004 TRAILBLAZER , TRANSMISSION DIPSTICK RUSTED AND BROKE, TRANSMISSION WENT OUT FROM WATER GETTING INSIDE / DO NOT KNOW HOW THIS COULD HAVE HAPPENED ! AND THE BEARINGS IN THE WATERPUMP WENT OUT LEAVING THE FAN SHAFT WIGGLING / LOOSE. WITH ONLY 65000 MILES ON MY TRAILBLAZER NOT TRAVELING NO FASTER THAN 75 MPH MAX. THIS SHOULD NOT HAVE HAPPENED. MY FRIENDS WITH THE SAME TRAILBLAZER IS HAVING THE SAME THING HAPPENING. I SERVICED EVERY 3500 MILES SINCE OWNED 2005. PLEASE HELP IF CAN . *TR
2004 TRAILBLAZER, THE TRANSMISSION DIP STICK RUSTED AND BROKE AND WATER IN TRANSMISSION. TRANSMISSION WENT OUT. MANY OTHER OWNERS HAVING SAME PROBLEM WITH SAME 2004 TRAILBLAZERS. BAD DIP STICK MANUFACTURE POSITION GETTING WATER INSIDE. *TR
AUTOMATIC TRANSMISSION SHIFTED OUT OF THIRD AND WOULD NOT SHIFT BACK WHILE I WAS ON THE FREEWAY. DEALER SAID A TRANSMISSION FLUSH AND FLUID CHANGE WOULD FIX IT. AFTER PERFORMING FLUSH DEALER TRANSMISSION WAS SHOT AND NEEDED REPLACEMENT. INSTRUMENT CLUSTER FUNCTIONING INTERMITTENTLY, SPEEDOMETER WORKS AT FIRST AND THEN SLOWLY GOES DOWN TO ZERO. *TR
THE REVERSE TRANSMISSION BELL HOUSING BLOWS OUT. THIS IS THE SECOND CHEVROLET VEHICLE I HAVE OWNED AND THE SAME PROBLEM ON BOTH THE FIRST TIME $2400.00 LATER IT WAS FIXED,AND NOW $2200.00 LATER THE PROBLEM WILL BE FIXED. I KNOW OF 3 PEOPLE SO FAR THAT HAVE HAD THE SAME PROBLEM. I WILL ASSURE YOU THIS WILL BE THE LAST CHEVROLET VEHICLE I WILL BUY UNLESS THIS PROBLEM IS FIXED. PLEASE RESPOND. *TR
DT*: THE CONTACT STATED THAT WHILE DRIVING UP A DRIVEWAY AT 10 MPH, THE TRANSMISSION SLIPPED, AND WOULD NOT ACCELERATE WHEN THE PEDAL WAS DEPRESSED. THE VEHICLE WAS NOT TAKEN IN FOR SERVICE.
TRANSMISSION SHIFTS HARD FROM 1ST TO 2ND, SOMETIMES WHEN AT A STOP IT STALLS BEFORE TAKING OFF, SOMETIMES RPM BOTTOMS OUT. 4 WHEEL DRIVE ONLY USED ABOUT 3 OR 4 TIMES, EACH TIME IT STALLED BEFORE GOING INTO 4 WHEEL THEN WOULD NOT COME OUT OF 4 WHEEL FOR ABOUT 2 OR 3 MINUTES. *JB
FULL DESTRUCTION BECAUSE OF FIRE I WAS ON THE WAY BACK FROM A LONG TRIP IN SOUTHERN CHILE (UP TO USHUAIA) OVER THE "CARRETERA AUSTRAL" AND, AFTER ABOUT 9'000 KM DRIVE WITHOUT ANY PROBLEM, I SAW A WHITE SMOKE BACK MY VEHICLE. OIL PRESSURE: NORMAL, MOTOR TEMPERATURE: NORMAL. THIS MEANT IMMEDIATE STOP ALONG THE "RUTA 40 NORTE" IN ARGENTINA (ABOUT 100 KM NORTH OF BARILOCHE, ON THE WAY TO NEUQU). WHILE STOPPING, I FELT THE BRAKE PEDAL JUST GOING WITHOUT IMMEDIATE REACTION BUT THE PRESSION CAME BACK. WHILE BRINGING THE GEAR SHIFT TO POSITION PARKING, I DID NOT FEEL ANY SENSATION, AS IF IT WOULD HAVE NO CONNECTION; THE AUTOMATIC DOOR BLOCKER CONNECTED TO THE GEAR SHIFT DID NOT WORK TOO, SO THAT WE HAD TO UNLOCK THE DOORS MANUALLY. AFTER HAVING DISCONNECTED THE ENGINE, I SAW WHITE SMOKE COMING OUT FROM THE UPPER LEFT CORNER OF THE MOTOR. I OPENED THE CAPOT AND THE SMOKE CAME FROM THE LEFT CORNER (CLOSE TO THE DRIVER'S PLACE). SUDDENLY, SOME MATERIAL IN FLAMES FELL TO THE BOTTOM, ABOUT MIDDLE LIGHT LEFT OF THE CAR. I TRIED TO PUT OUT THE FLAMES WITH THE EXTINGUISHER, BUT OTHER BURNING MATERIAL FELL. OTHER PEOPLE HAD STOPPED AND HELPED ME. WE PUSHED THE CAR A LITTLE AHEAD - THOUGH THE HAND BRAKE WAS TIED AND THE GEAR SHIFT ON "P", BUT BURNING MATERIAL FELL AGAIN. IN THE MEANTIME, MY WIFE AND CHILDREN THROW OUT THE LUGGAGE, SO THAT WE COULD SAVE ALMOST ALL OF IT. BUT THE CAR BURNED ENTIRELY. WHAT COULD BE THE REASON OF THIS INCIDENT ? THANKS GOD, I STOPPED IMMEDIATELY SO THAT NOBODY WAS INJURED NOR BURNED AND NO THIRD PARTY SUFFERED ANY DAMAGE. *NM
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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