Two problems related to lose power steering have been reported for the 2006 Chevrolet Trailblazer. The most recently reported issues are listed below.
Whilst driving on the highway the engine shut down and lost power steering. Had to pull over on the side of the highway. At high speeds this is troubling. The powertrain and check engine light came on. Waited several minutes and car would restart and be operable but would repeat. Mechanic determined a faulty computer known as the powetrain control module (pcm) or engine control module (ecm). This part was replaced and has fixed the problem.
I was driving approximately 40 mph and all of a sudden I lost power in the vehicle. I had no acceleration, I lose power steering. Vehicle was still powered on but I could not pick up speed or steer vehicle. I had to pull over to the shoulder and cut off ignition then restart vehicle. Once restarted I had full functionality again. This has happened 4 times in the last 30 days. Vehicle has also started stalling when attempt to start up.