diff --git a/VectoCore/VectoCore/Models/SimulationComponent/Impl/ATShiftStrategyOptimized.cs b/VectoCore/VectoCore/Models/SimulationComponent/Impl/ATShiftStrategyOptimized.cs
index 0fb4d8b626359da721f3dc3bf9c231d834f31417..d9c80470a52b2b24ad11dcbfce4c7bd23adf0d9b 100644
--- a/VectoCore/VectoCore/Models/SimulationComponent/Impl/ATShiftStrategyOptimized.cs
+++ b/VectoCore/VectoCore/Models/SimulationComponent/Impl/ATShiftStrategyOptimized.cs
@@ -124,6 +124,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
 
 			// initialize vehicle so that vehicleStopped of the testcontainer is false (required for test-runs)
 			TestContainerGbx.Gear = 2;
+			TestContainerGbx.TorqueConverterLocked = true;
 			TestContainer.VehiclePort.Initialize(10.KMPHtoMeterPerSecond(), 0.SI<Radian>());
 
 			if (runData.Cycle.CycleType == CycleType.MeasuredSpeed) {