diff --git a/VECTO/GUI/GearboxForm.Designer.vb b/VECTO/GUI/GearboxForm.Designer.vb
index 6254e627916cc94301228b80b52369b36aeda95b..15acbbdce12d0e9da00a43a99f8e6507d300fb2e 100644
--- a/VECTO/GUI/GearboxForm.Designer.vb
+++ b/VECTO/GUI/GearboxForm.Designer.vb
@@ -136,6 +136,7 @@ Partial Class GearboxForm
 		Me.Label34 = New System.Windows.Forms.Label()
 		Me.Label35 = New System.Windows.Forms.Label()
 		Me.gbTCAccMin = New System.Windows.Forms.GroupBox()
+		Me.lblGbxInfo = New System.Windows.Forms.Label()
 		Me.ToolStrip1.SuspendLayout()
 		Me.StatusStrip1.SuspendLayout()
 		CType(Me.PictureBox1, System.ComponentModel.ISupportInitialize).BeginInit()
@@ -361,7 +362,7 @@ Partial Class GearboxForm
 		'Label3
 		'
 		Me.Label3.AutoSize = True
-		Me.Label3.Location = New System.Drawing.Point(26, 85)
+		Me.Label3.Location = New System.Drawing.Point(26, 79)
 		Me.Label3.Name = "Label3"
 		Me.Label3.Size = New System.Drawing.Size(87, 13)
 		Me.Label3.TabIndex = 42
@@ -369,7 +370,7 @@ Partial Class GearboxForm
 		'
 		'TbName
 		'
-		Me.TbName.Location = New System.Drawing.Point(119, 82)
+		Me.TbName.Location = New System.Drawing.Point(119, 76)
 		Me.TbName.Name = "TbName"
 		Me.TbName.Size = New System.Drawing.Size(334, 20)
 		Me.TbName.TabIndex = 0
@@ -599,6 +600,7 @@ Partial Class GearboxForm
 		Me.TbStartAcc.Name = "TbStartAcc"
 		Me.TbStartAcc.Size = New System.Drawing.Size(57, 20)
 		Me.TbStartAcc.TabIndex = 2
+		Me.TbStartAcc.Visible = False
 		'
 		'Label11
 		'
@@ -608,6 +610,7 @@ Partial Class GearboxForm
 		Me.Label11.Size = New System.Drawing.Size(173, 13)
 		Me.Label11.TabIndex = 0
 		Me.Label11.Text = "Reference acceleration at clutch-in"
+		Me.Label11.Visible = False
 		'
 		'TbStartSpeed
 		'
@@ -633,6 +636,7 @@ Partial Class GearboxForm
 		Me.Label10.Size = New System.Drawing.Size(34, 13)
 		Me.Label10.TabIndex = 0
 		Me.Label10.Text = "[m/s²]"
+		Me.Label10.Visible = False
 		'
 		'TbTqResvStart
 		'
@@ -886,7 +890,7 @@ Partial Class GearboxForm
 		'Label16
 		'
 		Me.Label16.AutoSize = True
-		Me.Label16.Location = New System.Drawing.Point(18, 111)
+		Me.Label16.Location = New System.Drawing.Point(18, 105)
 		Me.Label16.Name = "Label16"
 		Me.Label16.Size = New System.Drawing.Size(95, 13)
 		Me.Label16.TabIndex = 45
@@ -896,7 +900,7 @@ Partial Class GearboxForm
 		'
 		Me.CbGStype.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList
 		Me.CbGStype.FormattingEnabled = True
-		Me.CbGStype.Location = New System.Drawing.Point(119, 108)
+		Me.CbGStype.Location = New System.Drawing.Point(119, 102)
 		Me.CbGStype.Name = "CbGStype"
 		Me.CbGStype.Size = New System.Drawing.Size(227, 21)
 		Me.CbGStype.TabIndex = 1
@@ -1060,6 +1064,14 @@ Partial Class GearboxForm
 		Me.gbTCAccMin.TabStop = False
 		Me.gbTCAccMin.Text = "Torque Converter: Min. acceleration after upshift"
 		'
+		'lblGbxInfo
+		'
+		Me.lblGbxInfo.AutoSize = True
+		Me.lblGbxInfo.Location = New System.Drawing.Point(121, 126)
+		Me.lblGbxInfo.Name = "lblGbxInfo"
+		Me.lblGbxInfo.Size = New System.Drawing.Size(0, 13)
+		Me.lblGbxInfo.TabIndex = 51
+		'
 		'GearboxForm
 		'
 		Me.AcceptButton = Me.ButOK
@@ -1067,6 +1079,7 @@ Partial Class GearboxForm
 		Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
 		Me.CancelButton = Me.ButCancel
 		Me.ClientSize = New System.Drawing.Size(877, 696)
+		Me.Controls.Add(Me.lblGbxInfo)
 		Me.Controls.Add(Me.gbTCAccMin)
 		Me.Controls.Add(Me.gbPowershiftLosses)
 		Me.Controls.Add(Me.PicBox)
@@ -1218,4 +1231,5 @@ Partial Class GearboxForm
 	Friend WithEvents Label34 As System.Windows.Forms.Label
 	Friend WithEvents Label35 As System.Windows.Forms.Label
 	Friend WithEvents gbTCAccMin As System.Windows.Forms.GroupBox
+	Friend WithEvents lblGbxInfo As System.Windows.Forms.Label
 End Class
diff --git a/VECTO/GUI/GearboxForm.vb b/VECTO/GUI/GearboxForm.vb
index a65b47741f646a5978e7988cfa9ce0b5bdf17010..6f54e5730ade56753d0a02bdcb0843f811371a9d 100644
--- a/VECTO/GUI/GearboxForm.vb
+++ b/VECTO/GUI/GearboxForm.vb
@@ -101,7 +101,7 @@ Public Class GearboxForm
 		TbMinTimeBetweenShifts.Text = DeclarationData.Gearbox.MinTimeBetweenGearshifts.ToGUIFormat()
 		'cDeclaration.MinTimeBetweenGearshift(GStype)
 
-		TbTqResv.Text = (DeclarationData.Gearbox.TorqueReserve * 100).ToGUIFormat()		' cDeclaration.TqResv
+		TbTqResv.Text = (DeclarationData.Gearbox.TorqueReserve * 100).ToGUIFormat()			  ' cDeclaration.TqResv
 		TbTqResvStart.Text = (DeclarationData.Gearbox.TorqueReserveStart * 100).ToGUIFormat() 'cDeclaration.TqResvStart
 		TbStartSpeed.Text = DeclarationData.Gearbox.StartSpeed.ToGUIFormat()	'cDeclaration.StartSpeed
 		TbStartAcc.Text = DeclarationData.Gearbox.StartAcceleration.ToGUIFormat()	' cDeclaration.StartAcc
@@ -326,6 +326,7 @@ Public Class GearboxForm
 		GearboxFileBrowser.UpdateHistory(file)
 		Text = GetFilenameWithoutPath(file, True)
 		LbStatus.Text = ""
+		UpdateGearboxInfoText()
 		_gbxFile = file
 		Activate()
 
@@ -503,6 +504,25 @@ Public Class GearboxForm
 		TbTracInt.Enabled = Not gStype.AutomaticTransmission()
 		tbDownshiftAfterUpshift.Enabled = Not gStype.AutomaticTransmission()
 		tbUpshiftAfterDownshift.Enabled = Not gStype.AutomaticTransmission()
+		UpdateGearboxInfoText()
+	End Sub
+
+	Private Sub UpdateGearboxInfoText()
+		Dim gStype As GearboxType = CType(CbGStype.SelectedValue, GearboxType)
+
+		Dim text As String = ""
+		If (gStype = GearboxType.ATSerial) Then
+			If LvGears.Items.Count > 2 Then
+				Dim ratio1 As Double = LvGears.Items.Item(1).SubItems(GearboxTbl.Ratio).Text.ToDouble(0)
+				Dim ratio2 As Double = LvGears.Items.Item(2).SubItems(GearboxTbl.Ratio).Text.ToDouble(0)
+				If ratio1 / ratio2 >= DeclarationData.Gearbox.TorqueConverterSecondGearThreshold Then
+					text = "Torque converter is used in 1st and 2nd gear"
+				Else
+					text = "Torque converter is used in 1st gear only"
+				End If
+			End If
+		End If
+		lblGbxInfo.Text = text
 	End Sub
 
 
@@ -580,6 +600,7 @@ Public Class GearboxForm
 				LvGears.SelectedItems(0).SubItems(GearboxTbl.LossMapEfficiency).Text = _gearDialog.TbMapPath.Text
 				LvGears.SelectedItems(0).SubItems(GearboxTbl.ShiftPolygons).Text = _gearDialog.TbShiftPolyFile.Text
 				LvGears.SelectedItems(0).SubItems(GearboxTbl.MaxTorque).Text = _gearDialog.TbMaxTorque.Text
+				UpdateGearboxInfoText()
 				Try
 					UpdatePic()
 				Catch
@@ -615,7 +636,7 @@ Public Class GearboxForm
 		LvGears.Items.Add(lvi)
 
 		lvi.EnsureVisible()
-
+		UpdateGearboxInfoText()
 		LvGears.Focus()
 
 		'Change() => NO! Change() is already handled by EditGear
@@ -648,7 +669,7 @@ Public Class GearboxForm
 			LvGears.Items(i0).Selected = True
 			LvGears.Items(i0).EnsureVisible()
 		End If
-
+		UpdateGearboxInfoText()
 		LvGears.Focus()
 		Try
 			UpdatePic()