One problem related to traction control light on has been reported for the 2003 Volkswagen Passat. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Volkswagen Passat based on all problems reported for the 2003 Passat.
At around 85,000 miles abs/traction control lights turned on and parking brake light started flashing. I took it to the dealership and was told that the abs module faulted and needed to be replaced.