2003 CADILLAC ESCALADE EXT METAL BRAKE LINE PROBLEM. I NOTICED A LEAK AND I TOOK MY TRUCK IN TO BE CHECKED OUT. THE SERVICE TECH ADVISED THAT THE METAL BRAKE LINE WAS CORRODED AND NEEDED TO BE REPLACED. I QUESTIONED HOW CAN THAT HAPPEN? WHY WASN'T IT NOTICED DURING PREVIOUS SERVICE? WHAT CAUSED THE PROBLEM? CAN THIS HAPPEN AGAIN? I REQUESTED INVESTIGATION OF PARTS AND VERIFICATION OF RECALLS. "I WAS TOLD THAT BATTERY ACID DRIPPED ON LINE". I WOULD LIKE TO FILE THIS COMPLAINT BECAUSE THE ANSWER I RECEIVED DOES NOT MAKE ANY SENSE, ESPECIALLY IF ALL SERVICE AND WORK DONE TO MY ESCALADE EXT TRUCK WERE COMPLETED MY THE DEALER. MY BATTERY HAD NO CORROSION AND I DO NOT LIVE INSALT BELT STATE. I FEEL THIS BRAKE LINE PROBLEM IS A DEFECT. THIS PROBLEM OCCURRED SUDDENLY, WITH NO WARNING. *TR