TSB: REVISION NOTICE September 19, 2019 Rev2: ? Applicability has been updated to include 2020 model year Tacoma vehicles and engine and transmission types. ? The Warranty Information and Repair Procedure sections have been updated. February 25, 2019 Rev1: ? Applicability has been updated to include 2019 model year Tacoma vehicles and engine and transmission types. ? The Warranty Information section has been updated. ? The Repair Procedure section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2016 ? 2020 model year Tacoma vehicles may exhibit a condition where the air conditioning system shuts down and stops blowing cool air during periods of extended engine idle with ambient temperatures greater than 100°F. Follow the Repair Procedure in the bulletin to address this condition.