Two problems related to adaptive equipment have been reported for the 2005 Chevrolet Trailblazer. The most recently reported issues are listed below.
Saturday night (03/1/14) on our way home it started snowing heavily, the visibility was low and our windows were fogging up and the front heater blower went off on our 2005 chevy Trailblazer and would not come back on. While trying to find a place to safely pull over we almost hit another vehicle because we couldn't see through our fogged up windows. . After we pulled over and turned the car off the blower motor came on and continued to run with the car off and the key removed from the ignition, so we re-started the car, and the blower went off and never came back on. . . Then today I went out started the car to warm up the engine and the blower came on. I drove to the store shut the car off and the blower continued to run so I re-started the car and turned it off again and the blower motor stopped. When I re-entered the car to go home the blower once again would not turn on at any speed. So I figured if I didn't have heat at least I had a heated seat but after about 5-10 mins the seat part of the seat got so hot it was burning my butt and thighs so I had to shut it off. Then about 1/2 home the blower just started blowing again, I pulled into the gas station shut the car off and the blower motor once again continued to run with the car off and the key out of the ignition so again I put the key in started the car then turned it off again and the motor stopped. This could be a very serious issue with not being able to defrost the windshield/windows in these hazardous driving conditions< plus not having heat in below zero temps is a health hazard as well. ( since we live in such a cold snowy state).
While driving on expressway spare tire mounted under vehicle dropped was swinging, cable that held tire rusted and gave way. Called gm not responible vehicle not under warranty.