Two problems related to fuses and circuit breaker have been reported for the 2003 Chevrolet Trailblazer. The most recently reported issues are listed below.
The accelerator pedal position sensor failed causing loss of power to the vehicle. The vehicle would only accelerate to 10mph and almost caused an accident. I also had/have numerous other problems with the vehicle.
Brake lights stopped operating. Dealer determined that the circuit board malfunctioned and replaced it.