Four problems related to engine shut off without warning have been reported for the 2005 Chevrolet Trailblazer. The most recently reported issues are listed below.
Vehicle engine stalls while driving. The car shuts off without warning. This is dangerous and not safe! I shut off while driving on the highway and when I was able to get it off the highway, it stopped in the city. Replaced the electrical body per the diagnosis and still experiencing this issue.
Vehicle shuts off when sitting idle or when changing between the gas and brakes. I was hit in the rear this morning while sitting in traffic. Thankfully neither vehicle was damaged. I googled this issue a d there are thousands of issues.
My 05 Trailblazer keeps shutting off while driving down a city street. In a 2-mile stretch it shut off 5 times with complete loss of steering control almost causing a serious accident. The vehicle trembled and then turned off. It has shut off on me while driving on three other occasions on previous years but it only occurred once and then stopped on those occasions.
Pulled up to a red light and stopped. Shortly after, coming to a complete stop, the engine just shut down. No warning lights had come on prior to the engine shutting down. Just lost all power instantly. I turned the key, as you would to start the vehicle, and it started right up. Very glad it did not happen while I was on the expressway or while moving. I can't help but wonder if it is an ignition problem, as that which plagues other gm products. Also, I have the radio on while driving and on multiple occasions, after turning off the car and opening the door to get out, the radio refuses to stop playing (it is supposed to, and it used to, cease operating when you open the driver's door). I am forced to open the back vehicle door to get it to stop. I wonder if this is a related issue to the ignition, as the ignition key may not actually be shutting of the accessories.