2003 Chevrolet Trailblazer EXT: complete transmission failure

Filed Sep 6, 2010 · Transmission · 122,455 miles · MA

2003 chevrolet trailblazer ext, failure of transmission fluid cooling lines due to corrosion. Loss of transmission fluid and possible transmission failure due to loss. Replace all transmission cooling lines (4 sections).

Filed Feb 19, 2009 · Transmission · 82,000 miles · MI

No warning lights, no warning sounds. While crossing an intersection, transmission went out. 0 forward gears, reverse works. Vehicle just reached 82,000 miles. Serviced regularly.

Filed Jan 12, 2009 · Transmission · 65,471 miles · FL

My 03 ext first transmission went out with just over 65k and then 16mo. Later at 80k went out again. No help from gm. I have owned a 99 blazer and 02 trailblazer with no real issues however this 03 has had numerous from cracked gas tank to catalytic converter going out as well as now having loud engine noise!

Filed May 16, 2008 · Transmission · 62,440 miles · NC

2003 trailblazer transmission failure. Driving in the neighborhood (25 MPH) heard a load clunk ( like something either hit or fell of the vehicle), then a high pitched whining sound, got the vehicle home (11pm). In the morning, to take the vehicle to be looked at found that I had no reverse, had to push it out of the garage. I have a extended warranty, but have given firestone permission to replace with a rebuild unit from gm. I do not know what my warranty will cover, but believe that gm should foot the bill, since this had been a reported problem for this transmission for years.

Filed Mar 27, 2008 · Transmission · TX

I was driving home to texas from a vacation to visit family in oklahoma. All of a sudden without warning vehicle's transmission got stuck in 3rd gear. Then the transmission failed altogether. Vehicle left me stranded in the middle of nowhere with my four children. They are telling me that there are alot of problems with the trailblazer transmissions.

Filed Sep 18, 2007 · Transmission · 66,000 miles · MI

Transmission went out at 63,000 miles -- clutch fan went out along with transmission. No warning -- nothing. This seems to be a common problem with trailblazers. Gm should order a recall --overall expense is over $2000.00

Filed Apr 3, 2006 · Transmission · 64,517 miles · VA

Traveling up a draw bridge at 50 miles per hour the transmission quit completely, the engine would rev up but no drive from the transmission. Fortunately, no one rear ended the vehicle as we slowed down and barely made it over the top of the bridge and then coasted down enough to get off of the bridge. The vehicle was towed to a dealer and they determined that the transmission must be completely replaced at my cost. The vehicle has 64,000 miles, too few for a transmission failure.

Filed Dec 8, 2005 · Transmission · 70,650 miles · CT

The incident occurred while driving home after dropping my son off at work on I-95. I was traveling between 65 and 70 MPH and passing a semi when my vehicle suddenly and with no prior warning shifted into second gear. Luckily I was able to maintain control of my car and able to drive it the rest of the way home. On monday I drove my vehicle as instructed to the mj sullivans, the dealership in which I bought the trailblazer, for service. I was then notified that the stator support bushings in the transmission failed and that it would actually be cheaper to replace the transmission. Interestingly, the new transmission comes with a 10yr/100k mile warranty and my vehicle has only 69000 miles of highway miles. Asked the service engineer about how unusual this type of failure is and they told me highly considering the wear on other parts in the transmission. We do not tow or have hills in our area and for the most part only travel on the highway so I would not suspect that we would be putting a high level of wear and tear on it. We had the transmission replaced.