One problem related to transmission not go into gear has been reported for the 2001 Chevrolet Blazer. The most recently reported issues are listed below.
Battery going dead after charging cell phone. Engine light on x 6 month - 1 year, several mechanics unable to find a cause 2 weeks ago: driving on the highway, nearing an exit, transmission start to go out. Drove it to a garage. . . . Would not go iinto reverse. Drove it home. . . . Will not go into gear at all by the time I got the car home. Car towed to another garage for repair. Vehicle is 2001 chevy Blazer with 78,000 original miles. I bought the vehicle brand new and daily use to go to work and drop kids off at school. Last summer drove it to florida. No problems. I don't tow anything nor do I drive it off-road. Last year the bolts off the suspension at to be replaced costing $1,000.