Two problems related to battery have been reported for the 2003 Cadillac CTS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Cadillac CTS based on all problems reported for the 2003 CTS.
The contact owns a 2003 Cadillac Cts. The contact stated that the vehicle displayed multiple failures over the last couple of months. The vehicle would shut off without warning. While driving 50 mph, the vehicle shut off. The contact was able to safely maneuver the vehicle to the side of the road. He attempted to restart the vehicle, but was unsuccessful. The contact heard a ticking noise coming from the engine during this time and was unable to remove the keys from the ignition. The vehicle was towed to the dealer and they stated that the battery needed to be replaced. The battery was replaced at the cost of $106. While driving home after the repair, the failure recurred. The vehicle was towed to the dealer and they determined that the a sensor failed. The vehicle is currently at the repair shop. The contact is in the process of notifying the manufacturer. The failure mileage was 34,000 and current mileage was 36,300.
The consumer experienced an electrical defect. Headlights, dashboard, and other illumination components worked intermittently. Also, battery had to be replaced.