One problem related to battery dead has been reported for the 2001 Toyota Avalon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Toyota Avalon based on all problems reported for the 2001 Avalon.
Lights on vsc stay on all the time. Auto has been in the shop 6 times. Kept having all kinds of electrical problems. Windows go up and down all the time by themselves. Battery failed. Dealer replaced steering angle sensor. Did not remedy problem. Trunk opens by itself. Dealer found latch not holding securely on latch lock bar.