Two problems related to check engine light on have been reported for the 2000 Toyota Avalon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Toyota Avalon based on all problems reported for the 2000 Avalon.
Toyota Avalon 2000 "check engine' light comes on. I take it to Toyota dealer for repair 9/1/12 . This light comes on again on 10/9/12. Toyota dealer again repairs. Light comes on again 12/14/12. Toyota dealer repairs again. Light comes on again 01/18/13. Toyota dealer repairs again. 'check engine light' comes on again 1/25/13. Toyota dealer wants to repair. I refuse. I inform Toyota dealer and Toyota corp. And request a refund of all money ($824. 47) charged. No refund as of 2/8/13. On 8/18/12, the driver front window won't roll. Toyota dealer repairs it at a cost of $274. 24.
'check engine' light keeps coming when driving. Since 2005, two Toyota dealers and two independent repair shops were unable to correct the problem for good. Latest repair was in September 2015 at Toyota. Check engine light is still on.