Four problems related to transmission failure have been reported for the 2006 Chevrolet Trailblazer. The most recently reported issues are listed below.
Tl- the contact owns a 2006 Chevrolet Trailblazer. The contact stated that the fuel, oil and speedometer gauge failed to provide an accurate reading. The contact also stated that the transmission failed. The vehicle was not taken to a dealer or an independent mechanic for a diagnostic testing. The manufacturer was not made aware of the failure. The failure mileage was approximately 241,539. The VIN was not available. Aw.
Without warning car would not accelerate when applying pressure to gas pedal, the motor would just rev up. I had to shift automatic transmission into lower gear to get it to go. I was able to drive to dealership by manually shifting transmission. Service department inform me that transmission was shot and would need to be replaced for about $3,000. 00 dollars. My 2006 chevy Trailblazer has always been service at the same dealership and only has 28,783 miles on the odometer; I did not think that the transmission would fail with such low mileage. Gm did say that they would cover the parts but I would be responsible to pay for labor. I realized that chevy did not offer 100,000 mile power train warrantees on Trailblazers until 2007 but I believe that the transmission was defective from the start and chevy should be responsible to cover replacement cost.
Very hard, shocking 2-1 (maybe 3-2?) downshift after long drive as in 2-3 hours or under heavy load. Such a hard brutal shift can lead to an accident. This is a very serious situation and it feels like you have hit something solid like another car. It is hard enough to completely jar occupants and dislodge glasses off of your face. You immediately lose about 5 mph. Feels like it could cause complete transmission failure. It is very difficult to recreate this failure and it is so scary that you would not want to do it again.
Transmission on my 2006 Trailblazer failed at 44,000 miles. The failure caused the vehicle to roll backwards almost immediately. The vehicle would only operate in 1st and 2nd gear. Dealership inspection indicated that the transmission failed prematurely but had no explanation as to why.