One problem related to battery cable has been reported for the 2005 Chevrolet Trailblazer. The most recently reported issues are listed below.
On 11/6/2010 while driving down the highway, smoke began to appear beneath the steering column. Pulled over and turned off vehicle, truck remained running and would not shut off, all lights interior and exterior lit up and would not shut off. . . . Opened hood and began pulling fuses to shut vehicle off and disconnect power. Had to cut battery cable and pull about 20 fuses to shut off. Called for tow truck and after inspection by myself and numerous mechanics it was found that a bundle of approx 80 wires perpendicular to the steering column had melted and started on fire. Total damage over $6600. Vehicle is totaled and insurance company (geico) refuses to pay claiming it was a vehicle defect. I owe over 10k on vehicle, purchased used 02/20/2010 with 59k. Total loss estimated at over 17k since finance company is no help trying to assist with repairs, I am letting them reposess it.