Two problems related to brake electric antilock have been reported for the 2003 Chevrolet Trailblazer. The most recently reported issues are listed below.
While coming to the end of an on-ramp to 295 w, the vehicle suddenly began steering from left to right; I had absolutely no control; the brakes didn't appear to be helping at all, and I was only driving at a speed of aprox. 30 mph as always when I drive this on-ramp. I've "never ever" had a problem as this occur with any vehicle I've driven on this or other on/off-ramps. It was scary. Luckily I did not hit on-coming traffic but did, however, hit a guardrail. My 8 yr. Old was also terrified, but luckily we did not sustain injury.
When applying pressure to the brake pedal pedal goes down to the floor, and the vehicle doesn't stop immediately. Dealer cannot determine the cause of problem.