TSB: Some 2019 ? 2021 model year Tundra vehicles may exhibit a ?High Transmission Fluid Temp?
warning message on the instrument cluster Multi-information Display (MID) when towing in
tow/haul mode at highway speeds. The Engine Control Module (ECM) (SAE term: Powertrain
Control Module/PCM) logic has been modified to address this drive mode condition. Follow the
Repair Procedure in this bulletin to address this condition.
