One problem related to warnings has been reported for the 2005 Toyota Avalon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Toyota Avalon based on all problems reported for the 2005 Avalon.
After the alternator and battery dies the car went right back to accelerating by itself into traffic, I contacted Toyota and explained that after the battery and alternator died the problem came right back but they seem not to care.