RoadVitals

2002 Chevrolet Trailblazer Ext Transmission Problems

Owner-reported complaints naming the transmission system, filed with NHTSA

Data refreshed

Transmission reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
20
Latest Feb 1, 2011
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
20%
of 100 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
0
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

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 2002 Chevrolet Trailblazer Ext submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 20 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.

Owner reports naming transmission

Shown in the owner’s own words, exactly as filed

Transmission
Filed Feb 1, 2011

TL*THE CONTACT OWNS A 2002 CHEVROLET TRAILBLAZER EXT. WHILE THE VEHICLE WAS PARKED HE ATTEMPTED TO SHIFT GEAR OUT OF PARK POSITION AND IT SHIFTED INTO A DIFFERENT GEAR. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO ADVISED HIM THAT THE GEAR SHIFT NEEDED TO BE REPAIRED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE CONTINUED TO OCCUR. THE DEALER DIAGNOSED THE FAILURE AND ADVISED HIM THAT THE GEAR SHIFT NEEDED TO BE REPAIRED. THE CONTACT REFERENCED RECALL NHTSA CAMPAIGN ID NUMBER: 03V075000, POWER TRAIN:AUTOMATIC TRANSMISSION AND WAS ADVISED BY THE DEALER THAT THE RECALL REPAIR HAD ALREADY BEEN PERFORMED. THE FAILURE HAD BEEN ON-GOING FOR THE LAST YEAR. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 120,000 AND THE CURRENT MILEAGE WAS 126,000.

NHTSA ID
10379832
Incident
Jan 15, 2010
Mileage
120,000 mi
Transmission
Filed Aug 17, 2010

I OWN A 2002 CHEVROLET TRAILBLAZER EXT WHICH HAS BEEN IMPECCABLY MAINTAINED BY ME. PRIOR TO GOING ON A VACATION I BROUGHT THE TRUCK INTO MY MECHANIC FOR AN INSPECTION AS USUAL AND HE INFORMED ME THE TRANSMISSION FUEL LINES HAD TO BE REPLACED DUE TO EXCESSIVE CORROSION. HE ALSO ADVISED ME THAT THIS WAS A COMMON PROBLEM WITH THIS MODEL WHICH PROMPTED CHEVROLET TO CHANGE THE DESIGN. HE CHECKED TO SEE IF IT WAS ON A RECALL LIST BUT WAS NOT. I CHECKED THE NHTSA SITE AND HAVE NOTICED NUMEROUS COMPLAINTS ON THIS SAME ISSUE. WHY HAS THIS NOT BEEN ADDRESSED WITH GM AND PLACED ON A RECALL LIST FOR REPLACEMENT BY A DEALERSHIP? *TR

NHTSA ID
10350109
Incident
Aug 16, 2010
Mileage
155,000 mi
Transmission
Filed Sep 20, 2009

LEAKING TRANSMISSION HOSES DUE TO EXCESSIVE CORROSION DUE TO POOR DESIGN ON 2002 CHEVY TRAILBLAZER EXT. *TR

NHTSA ID
10284671
Incident
Sep 19, 2009
Mileage
142,000 mi
Transmission
Filed Aug 15, 2008

WHILE DRIVING ON THE HIGHWAY I LOST POWER. I PULLED OVER AND FOUND THE TRANSMISSION COOLANT LINES HAD CORRODED. TRANSMISSION FLUID HAD ALL LEAKED OUT AND THE TRANSMISSION WAS RUINED. THE CAR WAS SERVICED AT THE DEALER 2 DAYS EARLIER AT THE DEALER. I UNDERSTAND THIS IS A TYPICAL PROBLEM WITH THIS VEHICLE AND SHOULD BE A RECALL. *TR

NHTSA ID
10238365
Incident
Jul 15, 2008
Mileage
84,000 mi
Transmission
Filed Apr 30, 2008

NO WARNING AT ALL. SOUNDED LIKE I HIT SOMETHING WHEN PULLING INTO A PARKING SPOT. I PUT THE TRUCK IN REVERSE AND HEARD THE SAME THING. AT 85,000 THE TRANSMISSION WAS SHOT AND I HAD TO SPEND ALMOST 1,300.00 TO HAVE A REBUILT PUT IN. THIS TRUCK HAS BEEN WELL-MAINTAINED AND IS IN VERY GOOD CONDITION. I AM VERY ANGRY. *TR

NHTSA ID
10226326
Incident
Apr 24, 2008
Mileage
85,000 mi
Transmission
Filed Mar 11, 2008

WITH NO PRIOR WARNING OF DEFECT, MY 2002 TRAILBLAZER WOULD NOT ACCELERATE WHILE TRYING TO MERGE INTO HIGHWAY TRAFFIC. AFTER INITIAL LOOK THROUGH FOR ANY OBVIOUS SIGNS OF WHAT MAY BE WRONG, I WAS UNABLE TO DRIVE MY CAR AND HAD IT TOWED TO NEAREST DEALERSHIP WHERE A TRANSMISSION FAILURE WAS QUICKLY DIAGNOSED AND I WAS QUOTED A REPAIR COST OF JUST UNDER $5,000 !!! MY WIFE AND I THINK THIS IS PRETTY ODD CONSIDERING THE REGULAR MAINTENANCE AND ABSENCE OF SIGNS OF TROUBLE, SO WE RESEARCHED THE INTERNET ONLY TO FIND OUT THAT TRANSMISSION PROBLEMS (PARTICULARLY ON 2002 TRAILBLAZER) ARE VERY COMMON. IT IS BELIEVED THAT GENERAL MOTORS IS VERY MUCH AWARE OF THIS AND THE PHRASE "SILENT RECALL" KEPT COMING UP. *TR

NHTSA ID
10220846
Incident
Mar 10, 2008
Mileage
83,145 mi
Transmission
Filed Jan 25, 2008

TRANSMISSION WENT OUT AT 80,000 MILES WITH THE SUNSHIELD AND SUN GEAR HAD TRANS REPLACED WITH NO HELP FORM GM THIS IS A PROBLEM WITH THE 2002 TRAILBLAZERS AND UP TRANS I FILL THAT GM NEEDS TO RECALL THIS PRODUCT BE FOR IT KILLS SOMEONE AND MAKE GOOD TO ALL CONSUMERS THAT HAD TO PAY FOR THERE'S TO BE FIXED. *TR

NHTSA ID
10215970
Incident
Jan 8, 2008
Mileage
80,000 mi
Transmission
Filed Jan 8, 2008

I WAS DRIVING HOME WHEN I HEARD A LOUD CLUNK. I TURNED DOWN MY STREET AND THE ENGINE STARTED WHINING AND WOULD NOT GO ANY FASTER THAN 20 MILES PER HOUR. I PULLED INTO MY DRIVEWAY AND PROCEEDED TO LOOK UNDER THE CARRIAGE EXPECTED TO SEE OIL DRIPPING BUT, I SAW NOTHING. I DECIDED TO START THE CAR AND DRIVE AROUND THE BLOCK BUT I COULD NOT BACK OUT OF MY DRIVEWAY THE CAR WOULD NOT GO IN REVERSE. *TR

NHTSA ID
10214221
Incident
Jan 6, 2008
Mileage
20 mi
Transmission
Filed Dec 12, 2007

TRANSMISSION ON 2002 TRAILBLAZER FAILED FOR THE SECOND TIME WITHIN 83K. FIRST TIME COMING OFF EXIT RAMP OF HIGHWAY AT 54K. SECOND TIME WAS IN THE MIDDLE OF AN INTERSECTION AT 83K. TRANSMISSION IN QUESTION WAS THE L460E. *TR

NHTSA ID
10211768
Incident
Dec 1, 2007
Mileage
54,000 mi
Transmission
Filed Apr 3, 2007

I WENT TO PUT THE VEHICLE IN REVERSE THIS MORNING AND IT MADE A WHINNYING NOISE AND WOULDN'T MOVE. I THOUGHT MAYBE A HAD A TOY UNDER THE CAR THAT WAS MAKING THAT NOISE. SO I SHUT THE CAR OFF TURNED IT BACK AND STILL SAME NOISE WHEN I WENT TO BACK UP. THIS IS A 2002 WITH UNDER 60,000 MILES AND HAS TRANSMISSION TROUBLE. SAME AS THAT OTHER COMPLAINTS I'VE READ ON HERE. BOOK SAYS TRANSMISSION SERVICE WHEN 100,000 MILES AND I DON'T BELIEVE THERE SHOULD BE SO MANY PROBLEMS WITH A VEHICLE WITH LOW MILES AND AS MANY COMPLAINTS AS THERE HAS BEEN GM SHOULD DO SOMETHING ABOUT IT AND THINK ABOUT A RECALL. I RUN A DAYCARE AND SOMETIMES HAVE 5 KIDS IN THE CAR EXPLAIN THAT TO THE PARENTS IF THEY WOULD HAVE BEEN HURT. IT TIME FOR GM TO DO SOMETHING ABOUT IT. *JB

NHTSA ID
10186914
Incident
Apr 3, 2007
EngineTransmission
Filed Jan 13, 2007

I BACKED OF THE GARAGE AND HEARD A LOUD NOISE. AS I PULLED FORWARD THE TRUCK MOVED VERY SLOWLY FOR HOW FAR THE GAS PEDAL WAS PUSHED. I WENT TO GO IN REVERSE AGAIN BUT THE TRUCK WOULD NOT GO INTO REVERSE AND COULD HEAR A LOUD WHINING FROM THE MOTOR. I THIS JUST HAPPENED TO DAY BUT I FIGURE IT'S THE TRANSMISSION. ALSO, WHEN I BOUGHT THE TRUCK I HAD PROBLEMS WITH THE TEMP. SENSOR AND THE AIR CONDITIONING THE DEALER TOOK CARE OF THE PROBLEM WITH THE AIR BUT THE OUTSIDE TEMP. SENSOR IS STILL BROKE. I DON'T KNOW WHICH IS WORSE THE FAILURE OF THE TRANSMISSION OR, SEEING ALL THE LIKE COMPLAINTS ON THIS SITE WITH NO ACTION. *JB

NHTSA ID
10178638
Incident
Jan 13, 2007
Mileage
68,000 mi
Transmission
Filed Jan 3, 2007

TRANSMISSION FAILED. DIAGNOSIS WAS REVERSE SUN SHELL FAILURE (JUST LIKE ALL THE OTHER COMPLAINTS LISTED ON THIS SITE)! GM REFUSES TO OFFER ANY COST ASSISTANCE WITH THE REPAIR OR ACKNOWLEDGE THAT THERE IS AN OBVIOUS DEFECT THAT SHOULD BE RECALLED!!! *NM

NHTSA ID
10177671
Incident
Dec 28, 2006
Mileage
75,000 mi
Transmission
Filed May 12, 2006

MORNING OF INCIDENT, WOULD HERE A "CLUNKING" NOISE AFTER ENGAGING THE ACCELERATOR. THAT AFTERNOON, WHILE DRIVING IN FAST LANE OF INTERSTATE AT 65 MILES PER HOUR, UPON ENGAGING THE ACCELERATOR, THE VEHICLE WAS GOING TO HAVE TO DOWN SHIFT, AND INSTEAD, HEARD A LOUD "WHIRRING" NOISE, AND VEHICLE SLOWED DOWN. UPON EVALUATION, THE VEHICLE WILL NOT GO INTO REVERSE, AND HAS TROUBLE SHIFTING. REPAIR SHOPPED DIAGNOSED THAT THE TRANSMISSION HAS GONE OUT. *JB

NHTSA ID
10157412
Incident
May 11, 2006
Mileage
52,000 mi
Transmission
Filed Jan 27, 2006

LOUD CLANKING NOISE COMING FROM THE REAR TO CENTER OF THE VEHICLE WHEN SHIFTING FROM PARK TO FORWARD OR REVERSE, IEEE WHEN LACK OF OR DIRECTION IS CHANGED. 36,000 MILES, VERY POOR QUALITY VEHICLE AS I HAVE HAD SEVERAL OTHER ISSUES. GOOD THING I HAVE EXTENDED WARRANTY, HOWEVER I AM VERY DISPLEASED WITH CHEVROLET AND WILL AVIOD PURCHASING ANY CHEVEROLET PRODUCTS IN THE FUTURE.*AK

NHTSA ID
10148861
Incident
Dec 14, 2005
Mileage
35,000 mi
Transmission
Filed Dec 1, 2005

TRANSMISSION COOLANT PIPES: ON THE AFTERNOON OF NOVEMBER 12, I WAS DRIVING ON A LOCAL FREEWAY I BEGAN EXPERIENCING DIFFICULTIES MAINTAINING SPEED. WHILE THE ENGINE HAD FULL POWER, I HAD TO PULL OVER AS MY VEHICLE EFFECTIVELY LOST POWER TO THE WHEELS. AT THIS TIME, I HAD THE VEHICLE TOWED TO THE LOCAL CHEVROLET DEALER WHERE I HAVE THE VEHICLE SERVICED. THE VEHICLE HAS ALWAYS BEEN REGULARLY SERVICES AT GM DEALERS. THE FOLLOWING MONDAY, MY SUSPICION OF A TRANSMISSION FAILURE WAS CONFIRMED. SEVERAL DAYS LATER, THE OLD TRANSMISSION WAS REPLACED. AT THAT TIME, THE TRANSMISSION COOLANT PIPE WAS DISCOVERED TO HAVE BEEN RUSTED THROUGH AND THIS WAS IDENTIFIED AS THE LIKELY CAUSE OF MY TRANSMISSION FAILING. I ULTIMATELY HAD TO HAVE THE TRANSMISSION AND THAT COOLANT PIPE REPLACED AT THE COST OF SEVERAL THOUSAND DOLLARS. I BELIEVE A STRONG CASE EXISTS FOR CALLING ATTENTION TO A NEED TO INSPECT AND PERHAPS REPLACE CRITICAL UNDERBODY FLUID PIPES ON SIMILAR VEHICLES DUE TO THE LIKELIHOOD OF RUST-THROUGH AND OTHER FAILURES THAT COULD CAUSE SUBSTANTIAL DAMAGE TO VEHICLES. *JB

NHTSA ID
10144187
Incident
Nov 12, 2005
Mileage
80,112 mi
Transmission
Filed Aug 18, 2005

SUN GEAR FAILED IN TRANSMISSION PUT INTO REVERSE WENT 6"-12" LOUD CLUNK COULD DRIVE AHEAD IN LOW GEAR 2002 TRAILBLAZER HAD 43,000 MILES. DEALER FIXED UNDER WARRANTY NO CHARGE BY REPLACING SUN GEAR. *JB

NHTSA ID
10133296
Incident
Aug 11, 2005
Mileage
43,000 mi
Transmission
Filed Jul 19, 2005

WHILE TAKING OFF FROM A TOLL BOOTH THERE WAS A BIG BANG AND THE TRANSMISSION WOULD NOT SHIFT INTO REVERSE AND MADE A VERY LOUD WHINNING NOISE WHE GOING FORWARD

NHTSA ID
10129284
Incident
Jul 8, 2005
Mileage
52,000 mi
Transmission
Filed Jul 9, 2005

MY TRANSMISSION WENT IN JANUARY OF 2005. IT IS NOW JULY AND THE SAME THING HAPPENED AGAIN. I HAD TO FIGHT WITH THE DEALERSHIP THEN BECAUSE I ONLY HAD THE VEHICLE FOR 4 MONTHS AND I AM FIGHTING WITH THEM AGAIN. IT IS THE SAME PROBLEM. IT WON'T SHIF OUT OF 1ST AND IT WON'T GO IN REVERSE AND THE LOUD NOISE IS HORRIBLE.

NHTSA ID
10128173
Incident
Jan 12, 2005
Mileage
51,000 mi
Transmission
Filed Mar 24, 2005

SMALL "CLUNKING" NOISE FROM UNDER VEHICLE WHEN SHIFTING FROM PARK TO REVERSE OR DRIVE. "CLUNKING ALSO EVIDENT WHEN SLOWING TO A STOP. ULTIMATE TRANSMISSION FAILURE OCCURRED WHILE ACCELLERATING FROM A STOP. A VERY LOUD "CLUNCK" WAS HEARD FROM UNDER THE VEHICLE FOLLOWED BY A LOUD WIRRING NOISE. THE VEHICLE WOULD NOT SHIFT FROM FIRST GEAR AFTERWARDS UNTIL ABOUT 40 MPH. THE "WIRRING" NOISE CONTINUED WHEN THE VEHICLE WAS STOPPED AND THE TRANSMISSION WOULD NOT SHIFT INTO REVERSE. THE DEALER'S MECHANIC OVERHAULED THE TRANSMISSION AND REPLACED THE FOLLOWING "WORN" PARTS: SUN GEAR SHELL, SUN GEAR, 3-4 CLUTCH. VEHICLE HAD 40000 MILES AT TIME OF FAILURE.

NHTSA ID
10114692
Incident
Mar 15, 2005
Mileage
40,439 mi
Other / unspecifiedTransmission
Filed Jul 28, 2004

VECHILE TRANSMISSIN FAILURE.*AK

NHTSA ID
10082873
Incident
Jul 14, 2004
Mileage
36,750 mi

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.

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Data sources

Data on this page last refreshed .