Two problems related to battery have been reported for the 2005 Cadillac STS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Cadillac STS based on all problems reported for the 2005 STS.
Vehicle parked in garage for 4 days. Car battery was completely drained of power. Needed to be re-charged. Dealership was unable to identify cause of battery loosing power. Problem originally occurred on September 25, 2006 same as March 2, 3007 - battery completely drained of power. Car was towed to dealership - dealership claimed problem was body control module (would cause high beams to come on when car was off) - replaced.
: the contact stated after the vehicle was left parked for five days or longer the battery needed recharged. The first time the vehicle was towed to a dealership. After the vehicle was inspected, the dealer was unable to identify what caused the battery to loose power. The problem continued to occur. The battery had not been replaced only recharged.