2005 Chevrolet Trailblazer transmission problems

Filed Jul 20, 2020 · Transmission · 170,000 miles · MO

I was driving on the highway going straight no turns in my 05 chevy trailblazer going about 60mph and all of a sudden I heard a low click sound and I was not able to accelerate or keep my current speed it was beyond unsafe so I pulled to the side of the highway engine running still I put it in every gear to see if it would move it did not I tried r,d,3,2&1 gears and the truck only rev'd up and did not move .it was no signs of the transmission going out or going bad it still shifted smooth it just went out all of a sudden on the highway which is very dangerous I feel like the transmission has to be cheaply made .

Filed Aug 13, 2018 · Driver assistance, Electrical · 112,000 miles · WA

Our vehicle died at a turn signal light in a dangerous intersection. No warning from the vehicle as it was running normal. It would turn over but no start. Police force a tow out of the busy intersection right away. It starts up at the mechanics. They tested fuel filter and other stuff. We get on the highway in traffic and get 6 miles out and no warning we die and had to push the car to the shoulder on in dangerous conditions. Sit for 2 hours and it fires up. So we found shade and waited for cool down. 2 hours away from home and it took us 9 hours to get home. We drove it to the store and when we were done shopping it fired up. Went around the corner to other store and shopped 2 hours and came out and it would turn and no start. Tried starting every 30 minutes to hour from 9:30pm to 1:40am and then it fired right up then drove 30 minutes to home. After researching and finding quite a few with same year make and model having the same issue we found that it is the pwr/trn relay plug in area in the fuse relay center. When we broke the plastic off the relay and wrapped a rubber band around it so it's constant contact and plug it in, it will fire up every time. I can drive it all day like that with no issues. I have to turn the key from running to accessory mode then remove the rubber band and then power off the car. Don't want to fry com. The relays are good and problem is the fuse relay center. Chevrolet said themselves that this model is notorious for fuse relay center problems and usually require replacement. It's a known defect. There are two pictures attached from one of the other people with same vehicle same problem and in order to make his fuse relay center work properly he had to wire/reroute his pwr/trn relay as seen in the picture. This needs to be investigated as this is a well known issue with chevrolet and the trailblazer.

Filed May 4, 2017 · Transmission · 326,000 miles · TN

When I accelerate from 45 to 60 miles per hour my whole truck vibrates and it feels like the engine is seizing but if I accelerate more or reduce my speed it goes away. I was researching online and found out I wasnt the only one in the country that has this problem. I was just thinking of everyone's safety including my own.

Filed Mar 9, 2017 · Transmission · 163,672 miles · NY

Tl* the contact owns a 2005 chevrolet trailblazer. When the contact shifted the gearshift in reverse, the vehicle failed to drive. In addition, when depressing the accelerator pedal, the vehicle would only increase one gram RPM. The vehicle was taken to the dealer where it was diagnosed that the forward gear was locked in with the loss of park and reverse and the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 163,672.

Filed Jul 1, 2016 · Engine, Transmission · 120,000 miles · PA · fire

Tl* the contact owns a 2005 chevrolet trailblazer. While operating the vehicle, smoke emitted from the hood. The contact pulled over and discovered flames under the hood. The fire department extinguished the fire. The vehicle was taken to an independent mechanic where it was diagnosed that the failure was due to a failed gm/AC delco transmission coolant line fitting, which caused transmission coolant to leak out onto the catalytic converter and exhaust system. The manufacturer was not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was 120,000.

Filed Sep 11, 2015 · Transmission · 132,000 miles · MI

Tl* the contact owns a 2005 chevrolet trailblazer. The contact stated that while attempting to accelerate, the vehicle shifted abruptly into second gear, and from second gear into third gear. The failure recurred multiple times. The vehicle was taken to a dealer for diagnostic testing. The first and second shift sensor in the transmission were replaced. The failure recurred, and the second and third shift sensor were replaced but the failure recurred. The vehicle was then taken to an independent mechanic who stated that the valve body needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 132,000.

Filed Dec 8, 2014 · Electrical, Lights · 87,000 miles · IL

While putting the truck into 4x4 hi, lo, or all wheel drive, the transfer case never does fully put it into 4x4. While driving, the dim lights turn completely off. The brights work, but the dims do not. These will not turn back on until the truck is shut off or a proper bump is hit. The heater blower in the front sometimes will nit come on. The back will be blowing, not the front. Also if a bump is hit improperly, the back speakers will start buzzing.

Filed Sep 26, 2014 · Transmission · 120,000 miles · WV

Tl* the contact owns a 2005 chevrolet trailblazer. When the accelerator pedal was depressed, the vehicle failed to shift out of first gear. The vehicle was towed to the contact's residence where an independent mechanic stated that the shift control solenoid sensor needed to be replaced. The vehicle was not repaired. The manufacturer was notified. The approximate failure mileage was 120,000.

Filed Sep 6, 2014 · Transmission · 112,000 miles · IL

Transmission cooling lines are corroded thru....

Filed Jul 5, 2014 · Engine, Transmission · 3,000 miles · PA

I am the owner of a 2005 chevrolet trailblazer with 32,000 miles. I purchased the truck new from the dealer. Over the few years that I have owned the vehicle, I have been faced with a multitude of issues. My first problem became the AC lines. They began to leak due to rust, which was not covered under the 7 year, 70,000 mile warranty. Next the exhaust manifold began to leak. The cost was covered under the warranty; however, the dealer managed to break the bolts that hold the manifold to the engine. The breakage was not covered, and therefore, I had to pay. Following these two issues, I noticed rust all over the undercarriage. In the past three years, after my warranty expired, I had to fix the following items due to the rust: the power steering coil, rear end, transmission, fuel pump, power steering lines, power steering pump, rack and pinion, front wheel bearings, and a fuel gage recall from gm. In addition, I avoid using low 4-wheel drive, because the vehicle gets stuck in that gearing.