diff --git a/AIDriverUtil.lua b/AIDriverUtil.lua
index 94b597c52..0e27d7695 100644
--- a/AIDriverUtil.lua
+++ b/AIDriverUtil.lua
@@ -290,6 +290,8 @@ function AIDriverUtil.isAllFolded(object)
 	return true
 end
 
+--- These functions only find directly attached implements/trailer to the vehicle.
+--- Implements of others for example a shovel attached to a front loader are not detected.
 function AIDriverUtil.hasAIImplementWithSpecialization(vehicle, specialization)
 	return AIDriverUtil.getAIImplementWithSpecialization(vehicle, specialization) ~= nil
 end
diff --git a/BunkerSiloAIDriver.lua b/BunkerSiloAIDriver.lua
index ea1aaed96..95fe07bfc 100644
--- a/BunkerSiloAIDriver.lua
+++ b/BunkerSiloAIDriver.lua
@@ -336,7 +336,7 @@ function BunkerSiloAIDriver:setupDriveOutOfSiloCourse()
 	local closestColumn = self.bunkerSiloManager:getClosestColumnToNode(self:getDirectionNode(),1)
 	local course,ix = self:getDriveOutOfSiloCourse(closestColumn)
 	self:siloDebug("Starting drive out of silo course at: %d",ix)
-	self:startCourse(course,ix)
+	self:startCourse(course,course:getNumberOfWaypoints())
 	self:changeSiloState(self.states.DRIVING_OUT_OF_SILO)
 end
 
diff --git a/BunkerSiloLoaderAIDriver.lua b/BunkerSiloLoaderAIDriver.lua
index 8cbbce2fe..b2af9c992 100644
--- a/BunkerSiloLoaderAIDriver.lua
+++ b/BunkerSiloLoaderAIDriver.lua
@@ -28,7 +28,7 @@ function BunkerSiloLoaderAIDriver:init(vehicle)
 	self.dischargeObject = AIDriverUtil.getImplementWithSpecialization(self.vehicle,Dischargeable) or self.vehicle
 	self.dischargeSpec = self.dischargeObject.spec_dischargeable
 	self.currentDischargeNode = self.dischargeObject:getCurrentDischargeNode()
-
+	self.mode = courseplay.MODE_SHOVEL_FILL_AND_EMPTY
 end
 
 function BunkerSiloLoaderAIDriver:setHudContent()
diff --git a/CompactingAIDriver.lua b/CompactingAIDriver.lua
index 9c3bb53c2..b2a0ede0b 100644
--- a/CompactingAIDriver.lua
+++ b/CompactingAIDriver.lua
@@ -30,6 +30,7 @@ function CompactingAIDriver:init(vehicle)
 	self:initStates(CompactingAIDriver.myStates)
 	self.debugChannel = 10
 	self.compactingState = self.states.NOTHING 
+	self.mode = courseplay.MODE_BUNKERSILO_COMPACTER
 end
 
 function CompactingAIDriver:setHudContent()
diff --git a/ShovelAIDriver.lua b/ShovelAIDriver.lua
index c0f9c1dcf..822c7b89e 100644
--- a/ShovelAIDriver.lua
+++ b/ShovelAIDriver.lua
@@ -63,6 +63,7 @@ function ShovelAIDriver:init(vehicle)
 	self.shovelState = self.states.DRIVING_UNLOADING_COURSE
 	self.shovelDebugChannel = courseplay.DBG_MODE_9
 	self.transitionCourseOffset = 20
+	self.mode = courseplay.MODE_SHOVEL_FILL_AND_EMPTY
 end
 
 function ShovelAIDriver:setHudContent()
@@ -71,14 +72,13 @@ function ShovelAIDriver:setHudContent()
 end
 
 function ShovelAIDriver:start(startingPoint)
-	self.shovel = AIDriverUtil.getImplementWithSpecialization(self.vehicle,Shovel) or self.vehicle
-	self.currentDischargeNode = self.shovel:getCurrentDischargeNode()
-
+	self:findShovelRecursive(self.vehicle)
 	if not self.shovel then 
 		self:error("Error: shovel not found!!")
 		courseplay.onStopCpAIDriver(self.vehicle,AIVehicle.STOP_REASON_UNKOWN)
 		return
 	end
+	self.currentDischargeNode = self.shovel:getCurrentDischargeNode()
 	self.targetUnloadingNode = nil
 	self.lastDistanceToEmptyPoint = math.huge
 	self:changeShovelState(self.states.DRIVING_UNLOADING_COURSE)
@@ -86,6 +86,7 @@ function ShovelAIDriver:start(startingPoint)
 	self.oldCanDischargeToGround = self.currentDischargeNode.canDischargeToGround
 	self.currentDischargeNode.canDischargeToGround = false
 
+	--- Not sure what this is for, old code ?
 	local vAI = self.vehicle:getAttachedImplements()
 	for i,_ in pairs(vAI) do
 		local object = vAI[i].object
@@ -110,6 +111,17 @@ function ShovelAIDriver:start(startingPoint)
 	end	
 end
 
+function ShovelAIDriver:findShovelRecursive(object)
+	if SpecializationUtil.hasSpecialization(Shovel, object.specializations) and not self.shovel then 
+		self.shovel = object
+		return
+	end
+	
+	for _,impl in pairs(object:getAttachedImplements()) do
+		self:findShovelRecursive(impl.object)
+	end
+end
+
 function ShovelAIDriver:stop(msg)
 	self.currentDischargeNode.canDischargeToGround = self.oldCanDischargeToGround
 	self.oldCanDischargeToGround = nil
@@ -619,4 +631,8 @@ end
 
 function ShovelAIDriver:isAlignmentCourseNeeded(course, ix)
 	return AIDriver.isAlignmentCourseNeeded(self,course, ix)
+end
+
+function ShovelAIDriver:setLightsMask(vehicle)
+	vehicle:setLightsTypesMask(courseplay.lights.HEADLIGHT_FULL)
 end
\ No newline at end of file
diff --git a/modDesc.xml b/modDesc.xml
index 86c9b6bf7..a912ae4fd 100644
--- a/modDesc.xml
+++ b/modDesc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8" standalone="no" ?>
 <modDesc descVersion="53">
-	<version>6.4.0.1</version>
+	<version>6.4.0.2</version>
 	<author><![CDATA[Courseplay.devTeam]]></author>
 	<title>
 		<en>CoursePlay</en>